Literature DB >> 21588039

(E)-7-(Pyren-1-yl)hept-6-enoic acid.

Arto Valkonen1, Tanja Lahtinen, Kari Rissanen.   

Abstract

The title compound, C(23)H(20)O(2), is a precursor of a pyrene-based supra-molecular element for non-covalent attachment to a carbon nanotube. The asymmetric unit contains three independent mol-ecules. The carb-oxy-lic acid group in each of these mol-ecules serves as an inter-molecular hydrogen-bond donor and acceptor, generating the commonly observed double O-H⋯O hydrogen-bond motif in an eight-membered ring. Weaker C-H⋯O, π-π [centroid-centroid distance = 3.968 (4) Å] and C-H⋯π inter-actions are also found in the crystal structure.

Entities:  

Year:  2010        PMID: 21588039      PMCID: PMC3007086          DOI: 10.1107/S1600536810024499

Source DB:  PubMed          Journal:  Acta Crystallogr Sect E Struct Rep Online        ISSN: 1600-5368


Related literature

Pyrene functionalized with an aliphatic spacer can be used to functionalize mol­ecular skeletons and the resulting mono- or multipyrene derivative bound non-covalently to a π-surface, see: Kavakka et al. (2007 ▶); Tomonari et al. (2006 ▶). For related structures, see: Bariamis et al. (2009 ▶). For hydrogen-bond motifs, see: Bernstein et al. (1995 ▶). The title compound was synthesized by a Wittig reaction, see: Wittig & Haag (1955 ▶); Wittig & Schöllkopf (1954 ▶).

Experimental

Crystal data

C23H20O2 M = 328.39 Triclinic, a = 10.7785 (3) Å b = 13.3315 (4) Å c = 18.9574 (6) Å α = 103.287 (2)° β = 103.064 (2)° γ = 98.391 (2)° V = 2525.64 (13) Å3 Z = 6 Mo Kα radiation μ = 0.08 mm−1 T = 123 K 0.32 × 0.14 × 0.06 mm

Data collection

Bruker–Nonius Kappa CCD diffractometer with an APEXII detector 15113 measured reflections 8885 independent reflections 5729 reflections with I > 2σ(I) R int = 0.038

Refinement

R[F 2 > 2σ(F 2)] = 0.064 wR(F 2) = 0.164 S = 1.06 8885 reflections 685 parameters 9 restraints H atoms treated by a mixture of independent and constrained refinement Δρmax = 0.32 e Å−3 Δρmin = −0.39 e Å−3 Data collection: COLLECT (Bruker, 2008 ▶); cell refinement: DENZO-SMN (Otwinowski & Minor, 1997 ▶); data reduction: DENZO-SMN; program(s) used to solve structure: SIR2004 (Burla et al., 2005 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: ORTEP-3 (Farrugia, 1997 ▶) and Mercury (Macrae et al., 2008 ▶); software used to prepare material for publication: SHELXL97. Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536810024499/fj2323sup1.cif Structure factors: contains datablocks I. DOI: 10.1107/S1600536810024499/fj2323Isup2.hkl Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C23H20O2Z = 6
Mr = 328.39F(000) = 1044
Triclinic, P1Dx = 1.295 Mg m3
Hall symbol: -P 1Mo Kα radiation, λ = 0.71073 Å
a = 10.7785 (3) ÅCell parameters from 10136 reflections
b = 13.3315 (4) Åθ = 0.4–28.3°
c = 18.9574 (6) ŵ = 0.08 mm1
α = 103.287 (2)°T = 123 K
β = 103.064 (2)°Plate, brown
γ = 98.391 (2)°0.32 × 0.14 × 0.06 mm
V = 2525.64 (13) Å3
Bruker–Nonius Kappa CCD diffractometer with an APEXII detector5729 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tubeRint = 0.038
graphiteθmax = 25.0°, θmin = 2.0°
Detector resolution: 9 pixels mm-1h = −12→12
φ and ω scansk = −15→14
15113 measured reflectionsl = −22→22
8885 independent reflections
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.064Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.164H atoms treated by a mixture of independent and constrained refinement
S = 1.06w = 1/[σ2(Fo2) + (0.051P)2 + 2.3851P] where P = (Fo2 + 2Fc2)/3
8885 reflections(Δ/σ)max < 0.001
685 parametersΔρmax = 0.32 e Å3
9 restraintsΔρmin = −0.39 e Å3
Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'s involving l.s. planes.
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > 2σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger.
xyzUiso*/Ueq
O1A0.7011 (2)1.28351 (14)0.93924 (11)0.0334 (5)
O2A0.7089 (2)1.14559 (15)0.98730 (11)0.0325 (5)
H2O0.700 (3)1.190 (2)1.0269 (14)0.049*
C1A0.6787 (3)0.9784 (2)0.45311 (15)0.0231 (6)
C2A0.6764 (3)0.8741 (2)0.45537 (15)0.0270 (6)
H2A0.68680.85840.50250.032*
C3A0.6597 (3)0.7931 (2)0.39162 (15)0.0273 (6)
H3A0.65690.72310.39560.033*
C4A0.6467 (2)0.8129 (2)0.32122 (15)0.0217 (6)
C5A0.6330 (3)0.7317 (2)0.25410 (15)0.0262 (6)
H5A0.62930.66100.25670.031*
C6A0.6252 (3)0.7529 (2)0.18704 (16)0.0285 (6)
H6A0.61740.69730.14370.034*
C7A0.6286 (2)0.8582 (2)0.18038 (15)0.0227 (6)
C8A0.6204 (3)0.8833 (2)0.11204 (16)0.0307 (7)
H8A0.61400.82920.06810.037*
C9A0.6215 (3)0.9859 (2)0.10714 (16)0.0327 (7)
H9A0.61781.00140.06030.039*
C10A0.6281 (3)1.0657 (2)0.17000 (16)0.0290 (7)
H10A0.62621.13520.16580.035*
C11A0.6375 (2)1.0444 (2)0.23970 (15)0.0228 (6)
C12A0.6431 (3)1.1248 (2)0.30620 (15)0.0259 (6)
H12A0.63781.19400.30250.031*
C13A0.6556 (3)1.1044 (2)0.37389 (15)0.0235 (6)
H13A0.65981.15980.41660.028*
C14A0.6628 (2)1.0011 (2)0.38260 (14)0.0199 (6)
C15A0.6496 (2)0.91896 (19)0.31704 (14)0.0190 (6)
C16A0.6386 (2)0.9403 (2)0.24570 (14)0.0203 (6)
C17A0.6997 (3)1.0615 (2)0.52346 (16)0.0299 (7)
H17A0.74881.12860.52720.036*
C18A0.6569 (3)1.0513 (2)0.58107 (15)0.0292 (7)
H18A0.60670.98410.57620.035*
C19A0.6775 (3)1.1329 (2)0.65390 (15)0.0256 (6)
H19A0.60151.16700.65120.031*
H19B0.75531.18780.66130.031*
C20A0.6958 (3)1.08693 (19)0.72159 (14)0.0214 (6)
H20A0.62261.02680.71170.026*
H20B0.77721.05970.72760.026*
C21A0.7024 (3)1.1674 (2)0.79478 (14)0.0219 (6)
H21A0.62361.19800.78800.026*
H21B0.77921.22520.80680.026*
C22A0.7118 (3)1.1178 (2)0.86038 (14)0.0237 (6)
H22A0.63931.05590.84600.028*
H22B0.79431.09230.86930.028*
C23A0.7074 (3)1.1910 (2)0.93228 (15)0.0248 (6)
O1B1.0145 (2)1.00042 (15)0.91661 (11)0.0400 (5)
O2B0.9862 (2)0.85927 (15)0.95987 (11)0.0336 (5)
H2P0.980 (3)0.906 (2)0.9987 (14)0.050*
C1B1.0025 (2)0.7018 (2)0.43238 (15)0.0218 (6)
C2B1.0249 (2)0.6030 (2)0.43784 (15)0.0237 (6)
H2B1.03650.58800.48530.028*
C3B1.0308 (2)0.5264 (2)0.37656 (15)0.0236 (6)
H3B1.04650.46020.38260.028*
C4B1.0140 (2)0.5448 (2)0.30571 (15)0.0215 (6)
C5B1.0173 (3)0.4662 (2)0.24065 (15)0.0256 (6)
H5B1.02970.39870.24540.031*
C6B1.0032 (3)0.4859 (2)0.17310 (16)0.0274 (6)
H6B1.00570.43200.13110.033*
C7B0.9844 (2)0.5867 (2)0.16315 (15)0.0235 (6)
C8B0.9707 (3)0.6100 (2)0.09403 (16)0.0311 (7)
H8B0.97380.55750.05140.037*
C9B0.9528 (3)0.7079 (2)0.08623 (16)0.0310 (7)
H9B0.94380.72190.03860.037*
C10B0.9478 (3)0.7860 (2)0.14783 (15)0.0269 (6)
H10B0.93520.85300.14190.032*
C11B0.9612 (2)0.7668 (2)0.21823 (15)0.0226 (6)
C12B0.9575 (3)0.8450 (2)0.28320 (15)0.0245 (6)
H12B0.94580.91270.27850.029*
C13B0.9702 (2)0.8255 (2)0.35100 (15)0.0234 (6)
H13B0.96710.87970.39260.028*
C14B0.9885 (2)0.7246 (2)0.36191 (15)0.0203 (6)
C15B0.9934 (2)0.6457 (2)0.29844 (14)0.0193 (6)
C16B0.9798 (2)0.6661 (2)0.22665 (14)0.0198 (6)
C17B0.9926 (3)0.7791 (2)0.49945 (16)0.0309 (7)
H17B0.95860.83810.49010.037*
C18B1.0226 (4)0.7777 (3)0.56672 (18)0.0535 (10)
H18B1.05830.71930.57580.064*
C19B1.0111 (3)0.8540 (2)0.63549 (16)0.0334 (7)
H19C0.92910.87920.62290.040*
H19D1.08430.91570.65130.040*
C20B1.0123 (3)0.8049 (2)0.70078 (15)0.0267 (6)
H20C0.93570.74600.68590.032*
H20D1.09140.77520.71090.032*
C21B1.0097 (3)0.8827 (2)0.77258 (14)0.0251 (6)
H21C0.93100.91290.76260.030*
H21D1.08680.94120.78800.030*
C22B1.0095 (3)0.8319 (2)0.83661 (15)0.0259 (6)
H22C0.93380.77210.82040.031*
H22D1.08940.80320.84710.031*
C23B1.0035 (3)0.9059 (2)0.90779 (15)0.0260 (6)
O1C0.6907 (2)0.28109 (14)0.10986 (11)0.0331 (5)
O2C0.6698 (2)0.41463 (15)0.05805 (11)0.0333 (5)
H2Q0.686 (3)0.371 (2)0.0220 (15)0.050*
C1C0.6603 (2)0.5787 (2)0.58619 (15)0.0215 (6)
C2C0.6594 (3)0.6831 (2)0.58354 (15)0.0244 (6)
H2C0.65840.70030.53750.029*
C3C0.6598 (3)0.7614 (2)0.64555 (15)0.0253 (6)
H3C0.65840.83090.64140.030*
C4C0.6622 (2)0.7396 (2)0.71438 (15)0.0221 (6)
C5C0.6637 (3)0.8190 (2)0.78027 (15)0.0249 (6)
H5C0.66150.88870.77700.030*
C6C0.6683 (3)0.7973 (2)0.84681 (15)0.0252 (6)
H6C0.67010.85200.88940.030*
C7C0.6705 (3)0.6923 (2)0.85436 (15)0.0241 (6)
C8C0.6765 (3)0.6669 (2)0.92237 (15)0.0283 (6)
H8C0.67990.72060.96590.034*
C9C0.6775 (3)0.5650 (2)0.92765 (16)0.0300 (7)
H9C0.68220.54970.97460.036*
C10C0.6719 (3)0.4855 (2)0.86485 (15)0.0276 (6)
H10C0.67220.41580.86890.033*
C11C0.6658 (2)0.5068 (2)0.79512 (15)0.0224 (6)
C12C0.6606 (3)0.4266 (2)0.72900 (15)0.0232 (6)
H12C0.65850.35620.73190.028*
C13C0.6589 (2)0.4486 (2)0.66270 (15)0.0226 (6)
H13C0.65630.39330.62030.027*
C14C0.6607 (2)0.5538 (2)0.65459 (14)0.0194 (6)
C15C0.6627 (2)0.63459 (19)0.71920 (14)0.0185 (5)
C16C0.6667 (2)0.6115 (2)0.78970 (14)0.0205 (6)
C17C0.6560 (3)0.4983 (2)0.51713 (15)0.0234 (6)
H17C0.61120.42860.51080.028*
C18C0.7091 (3)0.5148 (2)0.46341 (15)0.0239 (6)
H18C0.75730.58360.47070.029*
C19C0.6997 (3)0.4343 (2)0.39215 (14)0.0237 (6)
H19E0.62610.37500.38360.028*
H19F0.78050.40620.39770.028*
C20C0.6798 (2)0.47802 (19)0.32339 (14)0.0210 (6)
H20E0.59600.50170.31580.025*
H20F0.75020.54030.33330.025*
C21C0.6791 (3)0.3979 (2)0.25162 (14)0.0214 (6)
H21E0.76030.37080.26000.026*
H21F0.60500.33770.23960.026*
C22C0.6679 (3)0.4450 (2)0.18521 (14)0.0223 (6)
H22E0.58350.46730.17480.027*
H22F0.73790.50880.19930.027*
C23C0.6770 (3)0.3718 (2)0.11480 (15)0.0237 (6)
U11U22U33U12U13U23
O1A0.0587 (14)0.0231 (11)0.0227 (11)0.0115 (9)0.0163 (10)0.0075 (9)
O2A0.0563 (14)0.0268 (11)0.0182 (11)0.0132 (10)0.0130 (10)0.0076 (9)
C1A0.0248 (14)0.0241 (14)0.0190 (14)0.0040 (11)0.0060 (11)0.0038 (12)
C2A0.0362 (16)0.0286 (15)0.0199 (15)0.0088 (12)0.0081 (12)0.0120 (13)
C3A0.0353 (16)0.0219 (14)0.0268 (16)0.0095 (12)0.0078 (13)0.0091 (13)
C4A0.0212 (14)0.0228 (14)0.0225 (15)0.0073 (11)0.0063 (11)0.0066 (12)
C5A0.0285 (15)0.0217 (14)0.0281 (16)0.0078 (11)0.0081 (12)0.0045 (12)
C6A0.0286 (15)0.0276 (15)0.0268 (16)0.0064 (12)0.0084 (12)0.0014 (13)
C7A0.0197 (13)0.0297 (15)0.0185 (14)0.0050 (11)0.0065 (11)0.0048 (12)
C8A0.0337 (16)0.0374 (17)0.0203 (15)0.0076 (13)0.0103 (12)0.0032 (13)
C9A0.0357 (17)0.0419 (18)0.0247 (16)0.0059 (13)0.0103 (13)0.0163 (14)
C10A0.0328 (16)0.0297 (15)0.0262 (16)0.0032 (12)0.0102 (13)0.0107 (13)
C11A0.0241 (14)0.0246 (14)0.0193 (14)0.0027 (11)0.0067 (11)0.0062 (12)
C12A0.0290 (15)0.0220 (14)0.0282 (16)0.0050 (11)0.0078 (12)0.0102 (13)
C13A0.0277 (15)0.0216 (14)0.0213 (15)0.0061 (11)0.0079 (12)0.0043 (12)
C14A0.0192 (13)0.0222 (13)0.0184 (14)0.0053 (10)0.0055 (11)0.0047 (11)
C15A0.0156 (13)0.0214 (13)0.0203 (14)0.0043 (10)0.0058 (10)0.0052 (11)
C16A0.0169 (13)0.0256 (14)0.0192 (14)0.0058 (10)0.0064 (11)0.0055 (12)
C17A0.0389 (17)0.0257 (15)0.0235 (16)0.0039 (12)0.0071 (13)0.0066 (13)
C18A0.0396 (17)0.0254 (15)0.0233 (16)0.0059 (12)0.0091 (13)0.0080 (13)
C19A0.0310 (15)0.0249 (14)0.0211 (15)0.0063 (12)0.0093 (12)0.0043 (12)
C20A0.0252 (14)0.0190 (13)0.0202 (14)0.0050 (10)0.0072 (11)0.0040 (11)
C21A0.0250 (14)0.0225 (13)0.0192 (14)0.0062 (11)0.0072 (11)0.0057 (12)
C22A0.0305 (15)0.0216 (13)0.0196 (14)0.0068 (11)0.0072 (12)0.0059 (12)
C23A0.0270 (15)0.0269 (15)0.0217 (15)0.0050 (11)0.0067 (12)0.0089 (12)
O1B0.0757 (16)0.0215 (11)0.0268 (12)0.0097 (10)0.0225 (11)0.0060 (9)
O2B0.0565 (14)0.0276 (11)0.0198 (11)0.0080 (10)0.0149 (10)0.0086 (9)
C1B0.0195 (13)0.0273 (14)0.0180 (14)0.0038 (11)0.0049 (11)0.0056 (12)
C2B0.0238 (14)0.0286 (15)0.0204 (15)0.0080 (11)0.0053 (11)0.0091 (12)
C3B0.0214 (14)0.0228 (14)0.0275 (16)0.0052 (11)0.0058 (12)0.0088 (12)
C4B0.0162 (13)0.0240 (14)0.0229 (15)0.0026 (10)0.0048 (11)0.0049 (12)
C5B0.0274 (15)0.0218 (14)0.0274 (16)0.0067 (11)0.0087 (12)0.0039 (12)
C6B0.0287 (15)0.0261 (15)0.0235 (16)0.0047 (12)0.0091 (12)−0.0021 (12)
C7B0.0200 (14)0.0271 (15)0.0206 (15)0.0010 (11)0.0068 (11)0.0024 (12)
C8B0.0336 (16)0.0350 (16)0.0206 (15)0.0020 (13)0.0081 (13)0.0021 (13)
C9B0.0345 (16)0.0401 (17)0.0199 (15)0.0040 (13)0.0072 (12)0.0134 (14)
C10B0.0280 (15)0.0291 (15)0.0253 (16)0.0038 (12)0.0070 (12)0.0126 (13)
C11B0.0212 (14)0.0235 (14)0.0234 (15)0.0022 (11)0.0056 (11)0.0087 (12)
C12B0.0276 (15)0.0212 (14)0.0267 (16)0.0064 (11)0.0081 (12)0.0089 (12)
C13B0.0235 (14)0.0233 (14)0.0230 (15)0.0059 (11)0.0069 (11)0.0042 (12)
C14B0.0168 (13)0.0228 (14)0.0194 (14)0.0038 (10)0.0030 (11)0.0041 (12)
C15B0.0141 (12)0.0227 (14)0.0202 (14)0.0025 (10)0.0050 (10)0.0048 (12)
C16B0.0175 (13)0.0242 (14)0.0165 (14)0.0014 (10)0.0054 (10)0.0040 (11)
C17B0.0482 (19)0.0283 (15)0.0240 (17)0.0186 (13)0.0136 (14)0.0117 (13)
C18B0.117 (3)0.0291 (17)0.0253 (19)0.0310 (19)0.0275 (19)0.0113 (15)
C19B0.054 (2)0.0273 (15)0.0196 (15)0.0114 (14)0.0116 (14)0.0049 (13)
C20B0.0342 (16)0.0261 (14)0.0199 (15)0.0077 (12)0.0054 (12)0.0076 (12)
C21B0.0305 (15)0.0245 (14)0.0193 (15)0.0050 (12)0.0069 (12)0.0042 (12)
C22B0.0310 (15)0.0261 (15)0.0221 (15)0.0084 (12)0.0074 (12)0.0075 (12)
C23B0.0307 (15)0.0267 (15)0.0207 (15)0.0039 (12)0.0072 (12)0.0074 (12)
O1C0.0585 (14)0.0228 (11)0.0225 (11)0.0117 (9)0.0162 (10)0.0077 (9)
O2C0.0568 (14)0.0284 (11)0.0212 (11)0.0152 (10)0.0163 (10)0.0098 (9)
C1C0.0195 (13)0.0235 (14)0.0207 (15)0.0039 (11)0.0054 (11)0.0049 (12)
C2C0.0293 (15)0.0260 (14)0.0201 (15)0.0060 (11)0.0073 (12)0.0094 (12)
C3C0.0311 (15)0.0202 (14)0.0262 (16)0.0068 (11)0.0092 (12)0.0070 (12)
C4C0.0242 (14)0.0202 (13)0.0231 (15)0.0062 (11)0.0068 (11)0.0069 (12)
C5C0.0278 (15)0.0199 (14)0.0269 (16)0.0073 (11)0.0082 (12)0.0040 (12)
C6C0.0275 (15)0.0231 (14)0.0235 (15)0.0067 (11)0.0085 (12)0.0008 (12)
C7C0.0240 (14)0.0264 (14)0.0215 (15)0.0048 (11)0.0069 (11)0.0054 (12)
C8C0.0334 (16)0.0340 (16)0.0160 (14)0.0065 (12)0.0078 (12)0.0032 (12)
C9C0.0331 (16)0.0394 (17)0.0178 (15)0.0062 (13)0.0050 (12)0.0114 (13)
C10C0.0330 (16)0.0300 (15)0.0236 (16)0.0083 (12)0.0095 (12)0.0120 (13)
C11C0.0212 (14)0.0252 (14)0.0228 (15)0.0054 (11)0.0070 (11)0.0093 (12)
C12C0.0274 (15)0.0203 (13)0.0234 (15)0.0062 (11)0.0085 (12)0.0067 (12)
C13C0.0268 (14)0.0183 (13)0.0217 (15)0.0052 (11)0.0088 (12)0.0009 (11)
C14C0.0175 (13)0.0239 (13)0.0175 (14)0.0033 (10)0.0062 (11)0.0063 (11)
C15C0.0168 (13)0.0206 (13)0.0171 (14)0.0026 (10)0.0043 (10)0.0043 (11)
C16C0.0176 (13)0.0242 (14)0.0193 (14)0.0039 (11)0.0049 (11)0.0054 (12)
C17C0.0265 (15)0.0229 (14)0.0201 (15)0.0055 (11)0.0049 (11)0.0057 (12)
C18C0.0277 (15)0.0216 (13)0.0208 (15)0.0044 (11)0.0056 (12)0.0040 (11)
C19C0.0298 (15)0.0239 (14)0.0194 (14)0.0081 (11)0.0085 (12)0.0062 (12)
C20C0.0234 (14)0.0218 (13)0.0188 (14)0.0054 (11)0.0070 (11)0.0057 (11)
C21C0.0230 (14)0.0229 (13)0.0179 (14)0.0059 (11)0.0048 (11)0.0050 (11)
C22C0.0264 (14)0.0231 (14)0.0177 (14)0.0050 (11)0.0071 (11)0.0050 (12)
C23C0.0264 (14)0.0255 (15)0.0183 (14)0.0030 (11)0.0054 (11)0.0063 (12)
O1A—C23A1.224 (3)C11B—C16B1.425 (4)
O2A—C23A1.319 (3)C11B—C12B1.432 (4)
O2A—H2O0.875 (18)C12B—C13B1.350 (4)
C1A—C2A1.398 (4)C12B—H12B0.9500
C1A—C14A1.416 (4)C13B—C14B1.441 (3)
C1A—C17A1.472 (4)C13B—H13B0.9500
C2A—C3A1.380 (4)C14B—C15B1.422 (4)
C2A—H2A0.9500C15B—C16B1.428 (3)
C3A—C4A1.399 (4)C17B—C18B1.248 (4)
C3A—H3A0.9500C17B—H17B0.9500
C4A—C5A1.431 (4)C18B—C19B1.500 (4)
C4A—C15A1.431 (3)C18B—H18B0.9500
C5A—C6A1.352 (4)C19B—C20B1.526 (4)
C5A—H5A0.9500C19B—H19C0.9900
C6A—C7A1.434 (4)C19B—H19D0.9900
C6A—H6A0.9500C20B—C21B1.519 (4)
C7A—C8A1.398 (4)C20B—H20C0.9900
C7A—C16A1.423 (4)C20B—H20D0.9900
C8A—C9A1.391 (4)C21B—C22B1.520 (3)
C8A—H8A0.9500C21B—H21C0.9900
C9A—C10A1.383 (4)C21B—H21D0.9900
C9A—H9A0.9500C22B—C23B1.498 (4)
C10A—C11A1.399 (4)C22B—H22C0.9900
C10A—H10A0.9500C22B—H22D0.9900
C11A—C16A1.420 (3)O1C—C23C1.224 (3)
C11A—C12A1.437 (4)O2C—C23C1.322 (3)
C12A—C13A1.353 (4)O2C—H2Q0.859 (18)
C12A—H12A0.9500C1C—C2C1.405 (4)
C13A—C14A1.435 (3)C1C—C14C1.410 (3)
C13A—H13A0.9500C1C—C17C1.476 (4)
C14A—C15A1.419 (4)C2C—C3C1.380 (4)
C15A—C16A1.428 (4)C2C—H2C0.9500
C17A—C18A1.304 (4)C3C—C4C1.396 (4)
C17A—H17A0.9500C3C—H3C0.9500
C18A—C19A1.497 (4)C4C—C15C1.424 (3)
C18A—H18A0.9500C4C—C5C1.435 (4)
C19A—C20A1.531 (3)C5C—C6C1.350 (4)
C19A—H19A0.9900C5C—H5C0.9500
C19A—H19B0.9900C6C—C7C1.442 (4)
C20A—C21A1.526 (4)C6C—H6C0.9500
C20A—H20A0.9900C7C—C8C1.397 (4)
C20A—H20B0.9900C7C—C16C1.423 (4)
C21A—C22A1.527 (3)C8C—C9C1.387 (4)
C21A—H21A0.9900C8C—H8C0.9500
C21A—H21B0.9900C9C—C10C1.383 (4)
C22A—C23A1.498 (4)C9C—H9C0.9500
C22A—H22A0.9900C10C—C11C1.404 (4)
C22A—H22B0.9900C10C—H10C0.9500
O1B—C23B1.217 (3)C11C—C16C1.421 (3)
O2B—C23B1.314 (3)C11C—C12C1.433 (4)
O2B—H2P0.872 (18)C12C—C13C1.351 (4)
C1B—C2B1.396 (4)C12C—H12C0.9500
C1B—C14B1.417 (4)C13C—C14C1.444 (3)
C1B—C17B1.477 (4)C13C—H13C0.9500
C2B—C3B1.379 (4)C14C—C15C1.427 (4)
C2B—H2B0.9500C15C—C16C1.432 (3)
C3B—C4B1.397 (4)C17C—C18C1.320 (4)
C3B—H3B0.9500C17C—H17C0.9500
C4B—C15B1.426 (4)C18C—C19C1.492 (4)
C4B—C5B1.434 (4)C18C—H18C0.9500
C5B—C6B1.345 (4)C19C—C20C1.531 (3)
C5B—H5B0.9500C19C—H19E0.9900
C6B—C7B1.435 (4)C19C—H19F0.9900
C6B—H6B0.9500C20C—C21C1.522 (4)
C7B—C8B1.396 (4)C20C—H20E0.9900
C7B—C16B1.424 (4)C20C—H20F0.9900
C8B—C9B1.383 (4)C21C—C22C1.520 (3)
C8B—H8B0.9500C21C—H21E0.9900
C9B—C10B1.391 (4)C21C—H21F0.9900
C9B—H9B0.9500C22C—C23C1.494 (4)
C10B—C11B1.396 (4)C22C—H22E0.9900
C10B—H10B0.9500C22C—H22F0.9900
C23A—O2A—H2O110 (2)C1B—C14B—C13B123.1 (2)
C2A—C1A—C14A118.5 (2)C15B—C14B—C13B117.5 (2)
C2A—C1A—C17A119.6 (2)C14B—C15B—C4B120.4 (2)
C14A—C1A—C17A121.9 (2)C14B—C15B—C16B120.8 (2)
C3A—C2A—C1A122.4 (2)C4B—C15B—C16B118.8 (2)
C3A—C2A—H2A118.8C7B—C16B—C11B119.5 (2)
C1A—C2A—H2A118.8C7B—C16B—C15B120.6 (2)
C2A—C3A—C4A120.8 (2)C11B—C16B—C15B119.8 (2)
C2A—C3A—H3A119.6C18B—C17B—C1B129.0 (3)
C4A—C3A—H3A119.6C18B—C17B—H17B115.5
C3A—C4A—C5A122.6 (2)C1B—C17B—H17B115.5
C3A—C4A—C15A118.2 (2)C17B—C18B—C19B130.0 (3)
C5A—C4A—C15A119.2 (2)C17B—C18B—H18B115.0
C6A—C5A—C4A121.7 (2)C19B—C18B—H18B115.0
C6A—C5A—H5A119.1C18B—C19B—C20B112.4 (2)
C4A—C5A—H5A119.1C18B—C19B—H19C109.1
C5A—C6A—C7A120.9 (3)C20B—C19B—H19C109.1
C5A—C6A—H6A119.5C18B—C19B—H19D109.1
C7A—C6A—H6A119.5C20B—C19B—H19D109.1
C8A—C7A—C16A118.6 (2)H19C—C19B—H19D107.9
C8A—C7A—C6A122.7 (3)C21B—C20B—C19B113.2 (2)
C16A—C7A—C6A118.7 (2)C21B—C20B—H20C108.9
C9A—C8A—C7A121.3 (3)C19B—C20B—H20C108.9
C9A—C8A—H8A119.3C21B—C20B—H20D108.9
C7A—C8A—H8A119.3C19B—C20B—H20D108.9
C10A—C9A—C8A120.5 (3)H20C—C20B—H20D107.7
C10A—C9A—H9A119.8C20B—C21B—C22B112.3 (2)
C8A—C9A—H9A119.8C20B—C21B—H21C109.1
C9A—C10A—C11A120.2 (3)C22B—C21B—H21C109.1
C9A—C10A—H10A119.9C20B—C21B—H21D109.1
C11A—C10A—H10A119.9C22B—C21B—H21D109.1
C10A—C11A—C16A119.9 (2)H21C—C21B—H21D107.9
C10A—C11A—C12A122.0 (2)C23B—C22B—C21B113.8 (2)
C16A—C11A—C12A118.1 (2)C23B—C22B—H22C108.8
C13A—C12A—C11A121.8 (2)C21B—C22B—H22C108.8
C13A—C12A—H12A119.1C23B—C22B—H22D108.8
C11A—C12A—H12A119.1C21B—C22B—H22D108.8
C12A—C13A—C14A121.5 (2)H22C—C22B—H22D107.7
C12A—C13A—H13A119.2O1B—C23B—O2B123.2 (3)
C14A—C13A—H13A119.2O1B—C23B—C22B123.0 (2)
C1A—C14A—C15A119.6 (2)O2B—C23B—C22B113.8 (2)
C1A—C14A—C13A122.6 (2)C23C—O2C—H2Q107 (2)
C15A—C14A—C13A117.8 (2)C2C—C1C—C14C118.4 (2)
C14A—C15A—C16A120.8 (2)C2C—C1C—C17C119.3 (2)
C14A—C15A—C4A120.5 (2)C14C—C1C—C17C122.2 (2)
C16A—C15A—C4A118.7 (2)C3C—C2C—C1C122.2 (2)
C11A—C16A—C7A119.6 (2)C3C—C2C—H2C118.9
C11A—C16A—C15A119.8 (2)C1C—C2C—H2C118.9
C7A—C16A—C15A120.7 (2)C2C—C3C—C4C120.7 (2)
C18A—C17A—C1A126.0 (3)C2C—C3C—H3C119.7
C18A—C17A—H17A117.0C4C—C3C—H3C119.7
C1A—C17A—H17A117.0C3C—C4C—C15C118.7 (2)
C17A—C18A—C19A127.7 (3)C3C—C4C—C5C122.4 (2)
C17A—C18A—H18A116.1C15C—C4C—C5C118.9 (2)
C19A—C18A—H18A116.1C6C—C5C—C4C121.8 (2)
C18A—C19A—C20A112.7 (2)C6C—C5C—H5C119.1
C18A—C19A—H19A109.0C4C—C5C—H5C119.1
C20A—C19A—H19A109.0C5C—C6C—C7C121.1 (2)
C18A—C19A—H19B109.0C5C—C6C—H6C119.5
C20A—C19A—H19B109.0C7C—C6C—H6C119.5
H19A—C19A—H19B107.8C8C—C7C—C16C118.7 (2)
C21A—C20A—C19A112.9 (2)C8C—C7C—C6C122.8 (2)
C21A—C20A—H20A109.0C16C—C7C—C6C118.4 (2)
C19A—C20A—H20A109.0C9C—C8C—C7C121.4 (3)
C21A—C20A—H20B109.0C9C—C8C—H8C119.3
C19A—C20A—H20B109.0C7C—C8C—H8C119.3
H20A—C20A—H20B107.8C10C—C9C—C8C120.3 (3)
C20A—C21A—C22A111.9 (2)C10C—C9C—H9C119.9
C20A—C21A—H21A109.2C8C—C9C—H9C119.9
C22A—C21A—H21A109.2C9C—C10C—C11C120.6 (3)
C20A—C21A—H21B109.2C9C—C10C—H10C119.7
C22A—C21A—H21B109.2C11C—C10C—H10C119.7
H21A—C21A—H21B107.9C10C—C11C—C16C119.3 (2)
C23A—C22A—C21A114.2 (2)C10C—C11C—C12C122.1 (2)
C23A—C22A—H22A108.7C16C—C11C—C12C118.5 (2)
C21A—C22A—H22A108.7C13C—C12C—C11C121.7 (2)
C23A—C22A—H22B108.7C13C—C12C—H12C119.2
C21A—C22A—H22B108.7C11C—C12C—H12C119.2
H22A—C22A—H22B107.6C12C—C13C—C14C121.8 (2)
O1A—C23A—O2A123.1 (3)C12C—C13C—H13C119.1
O1A—C23A—C22A123.5 (2)C14C—C13C—H13C119.1
O2A—C23A—C22A113.5 (2)C1C—C14C—C15C119.7 (2)
C23B—O2B—H2P109 (2)C1C—C14C—C13C122.7 (2)
C2B—C1B—C14B118.7 (2)C15C—C14C—C13C117.6 (2)
C2B—C1B—C17B119.5 (2)C4C—C15C—C14C120.2 (2)
C14B—C1B—C17B121.8 (2)C4C—C15C—C16C119.3 (2)
C3B—C2B—C1B122.1 (2)C14C—C15C—C16C120.5 (2)
C3B—C2B—H2B119.0C11C—C16C—C7C119.6 (2)
C1B—C2B—H2B119.0C11C—C16C—C15C119.9 (2)
C2B—C3B—C4B121.0 (2)C7C—C16C—C15C120.5 (2)
C2B—C3B—H3B119.5C18C—C17C—C1C125.7 (2)
C4B—C3B—H3B119.5C18C—C17C—H17C117.2
C3B—C4B—C15B118.4 (2)C1C—C17C—H17C117.2
C3B—C4B—C5B122.3 (2)C17C—C18C—C19C125.5 (2)
C15B—C4B—C5B119.3 (2)C17C—C18C—H18C117.2
C6B—C5B—C4B121.5 (2)C19C—C18C—H18C117.2
C6B—C5B—H5B119.2C18C—C19C—C20C113.1 (2)
C4B—C5B—H5B119.2C18C—C19C—H19E109.0
C5B—C6B—C7B121.3 (3)C20C—C19C—H19E109.0
C5B—C6B—H6B119.3C18C—C19C—H19F109.0
C7B—C6B—H6B119.3C20C—C19C—H19F109.0
C8B—C7B—C16B118.8 (2)H19E—C19C—H19F107.8
C8B—C7B—C6B122.8 (3)C21C—C20C—C19C113.1 (2)
C16B—C7B—C6B118.4 (2)C21C—C20C—H20E109.0
C9B—C8B—C7B121.4 (3)C19C—C20C—H20E109.0
C9B—C8B—H8B119.3C21C—C20C—H20F109.0
C7B—C8B—H8B119.3C19C—C20C—H20F109.0
C8B—C9B—C10B120.3 (3)H20E—C20C—H20F107.8
C8B—C9B—H9B119.9C22C—C21C—C20C112.2 (2)
C10B—C9B—H9B119.9C22C—C21C—H21E109.2
C9B—C10B—C11B120.6 (3)C20C—C21C—H21E109.2
C9B—C10B—H10B119.7C22C—C21C—H21F109.2
C11B—C10B—H10B119.7C20C—C21C—H21F109.2
C10B—C11B—C16B119.4 (2)H21E—C21C—H21F107.9
C10B—C11B—C12B122.4 (2)C23C—C22C—C21C114.2 (2)
C16B—C11B—C12B118.2 (2)C23C—C22C—H22E108.7
C13B—C12B—C11B121.9 (2)C21C—C22C—H22E108.7
C13B—C12B—H12B119.0C23C—C22C—H22F108.7
C11B—C12B—H12B119.0C21C—C22C—H22F108.7
C12B—C13B—C14B121.7 (2)H22E—C22C—H22F107.6
C12B—C13B—H13B119.1O1C—C23C—O2C122.9 (2)
C14B—C13B—H13B119.1O1C—C23C—C22C123.6 (2)
C1B—C14B—C15B119.4 (2)O2C—C23C—C22C113.5 (2)
C14A—C1A—C2A—C3A0.2 (4)C1B—C14B—C15B—C16B−179.9 (2)
C17A—C1A—C2A—C3A−178.7 (3)C13B—C14B—C15B—C16B−0.4 (3)
C1A—C2A—C3A—C4A1.3 (4)C3B—C4B—C15B—C14B−0.8 (4)
C2A—C3A—C4A—C5A178.1 (3)C5B—C4B—C15B—C14B179.4 (2)
C2A—C3A—C4A—C15A−0.8 (4)C3B—C4B—C15B—C16B178.3 (2)
C3A—C4A—C5A—C6A−177.6 (3)C5B—C4B—C15B—C16B−1.5 (3)
C15A—C4A—C5A—C6A1.2 (4)C8B—C7B—C16B—C11B0.2 (4)
C4A—C5A—C6A—C7A−0.9 (4)C6B—C7B—C16B—C11B−180.0 (2)
C5A—C6A—C7A—C8A−179.8 (3)C8B—C7B—C16B—C15B−180.0 (2)
C5A—C6A—C7A—C16A−0.8 (4)C6B—C7B—C16B—C15B−0.1 (4)
C16A—C7A—C8A—C9A−0.2 (4)C10B—C11B—C16B—C7B0.0 (4)
C6A—C7A—C8A—C9A178.8 (3)C12B—C11B—C16B—C7B−179.8 (2)
C7A—C8A—C9A—C10A−1.3 (4)C10B—C11B—C16B—C15B−179.9 (2)
C8A—C9A—C10A—C11A1.9 (4)C12B—C11B—C16B—C15B0.4 (3)
C9A—C10A—C11A—C16A−0.8 (4)C14B—C15B—C16B—C7B−179.8 (2)
C9A—C10A—C11A—C12A−179.3 (3)C4B—C15B—C16B—C7B1.1 (3)
C10A—C11A—C12A—C13A−178.2 (3)C14B—C15B—C16B—C11B0.1 (3)
C16A—C11A—C12A—C13A3.3 (4)C4B—C15B—C16B—C11B−179.0 (2)
C11A—C12A—C13A—C14A−0.6 (4)C2B—C1B—C17B—C18B13.3 (5)
C2A—C1A—C14A—C15A−2.1 (4)C14B—C1B—C17B—C18B−167.4 (4)
C17A—C1A—C14A—C15A176.8 (2)C1B—C17B—C18B—C19B−178.6 (3)
C2A—C1A—C14A—C13A176.0 (2)C17B—C18B—C19B—C20B159.4 (4)
C17A—C1A—C14A—C13A−5.1 (4)C18B—C19B—C20B—C21B176.2 (3)
C12A—C13A—C14A—C1A178.7 (3)C19B—C20B—C21B—C22B179.4 (2)
C12A—C13A—C14A—C15A−3.2 (4)C20B—C21B—C22B—C23B−178.5 (2)
C1A—C14A—C15A—C16A−177.5 (2)C21B—C22B—C23B—O1B−8.9 (4)
C13A—C14A—C15A—C16A4.2 (4)C21B—C22B—C23B—O2B171.5 (2)
C1A—C14A—C15A—C4A2.7 (4)C14C—C1C—C2C—C3C0.5 (4)
C13A—C14A—C15A—C4A−175.6 (2)C17C—C1C—C2C—C3C178.3 (2)
C3A—C4A—C15A—C14A−1.2 (4)C1C—C2C—C3C—C4C0.5 (4)
C5A—C4A—C15A—C14A179.9 (2)C2C—C3C—C4C—C15C−0.7 (4)
C3A—C4A—C15A—C16A179.0 (2)C2C—C3C—C4C—C5C179.5 (2)
C5A—C4A—C15A—C16A0.1 (4)C3C—C4C—C5C—C6C−178.8 (3)
C10A—C11A—C16A—C7A−0.8 (4)C15C—C4C—C5C—C6C1.4 (4)
C12A—C11A—C16A—C7A177.8 (2)C4C—C5C—C6C—C7C−0.6 (4)
C10A—C11A—C16A—C15A179.3 (2)C5C—C6C—C7C—C8C179.3 (3)
C12A—C11A—C16A—C15A−2.1 (4)C5C—C6C—C7C—C16C−0.5 (4)
C8A—C7A—C16A—C11A1.3 (4)C16C—C7C—C8C—C9C−0.6 (4)
C6A—C7A—C16A—C11A−177.8 (2)C6C—C7C—C8C—C9C179.6 (3)
C8A—C7A—C16A—C15A−178.8 (2)C7C—C8C—C9C—C10C−0.3 (4)
C6A—C7A—C16A—C15A2.1 (4)C8C—C9C—C10C—C11C0.4 (4)
C14A—C15A—C16A—C11A−1.6 (4)C9C—C10C—C11C—C16C0.6 (4)
C4A—C15A—C16A—C11A178.2 (2)C9C—C10C—C11C—C12C179.6 (3)
C14A—C15A—C16A—C7A178.5 (2)C10C—C11C—C12C—C13C−177.9 (3)
C4A—C15A—C16A—C7A−1.7 (4)C16C—C11C—C12C—C13C1.1 (4)
C2A—C1A—C17A—C18A−35.6 (4)C11C—C12C—C13C—C14C−0.6 (4)
C14A—C1A—C17A—C18A145.6 (3)C2C—C1C—C14C—C15C−1.2 (4)
C1A—C17A—C18A—C19A179.0 (3)C17C—C1C—C14C—C15C−178.9 (2)
C17A—C18A—C19A—C20A−143.0 (3)C2C—C1C—C14C—C13C178.7 (2)
C18A—C19A—C20A—C21A−173.9 (2)C17C—C1C—C14C—C13C0.9 (4)
C19A—C20A—C21A—C22A176.3 (2)C12C—C13C—C14C—C1C179.3 (2)
C20A—C21A—C22A—C23A−175.2 (2)C12C—C13C—C14C—C15C−0.8 (4)
C21A—C22A—C23A—O1A−2.3 (4)C3C—C4C—C15C—C14C0.0 (4)
C21A—C22A—C23A—O2A176.7 (2)C5C—C4C—C15C—C14C179.8 (2)
C14B—C1B—C2B—C3B−1.5 (4)C3C—C4C—C15C—C16C179.3 (2)
C17B—C1B—C2B—C3B177.8 (2)C5C—C4C—C15C—C16C−0.9 (4)
C1B—C2B—C3B—C4B−0.2 (4)C1C—C14C—C15C—C4C1.0 (4)
C2B—C3B—C4B—C15B1.4 (4)C13C—C14C—C15C—C4C−178.9 (2)
C2B—C3B—C4B—C5B−178.9 (2)C1C—C14C—C15C—C16C−178.3 (2)
C3B—C4B—C5B—C6B−178.8 (3)C13C—C14C—C15C—C16C1.8 (3)
C15B—C4B—C5B—C6B0.9 (4)C10C—C11C—C16C—C7C−1.6 (4)
C4B—C5B—C6B—C7B0.1 (4)C12C—C11C—C16C—C7C179.4 (2)
C5B—C6B—C7B—C8B179.3 (3)C10C—C11C—C16C—C15C178.9 (2)
C5B—C6B—C7B—C16B−0.5 (4)C12C—C11C—C16C—C15C−0.1 (4)
C16B—C7B—C8B—C9B−0.1 (4)C8C—C7C—C16C—C11C1.6 (4)
C6B—C7B—C8B—C9B−180.0 (3)C6C—C7C—C16C—C11C−178.6 (2)
C7B—C8B—C9B—C10B−0.1 (4)C8C—C7C—C16C—C15C−178.9 (2)
C8B—C9B—C10B—C11B0.2 (4)C6C—C7C—C16C—C15C0.9 (4)
C9B—C10B—C11B—C16B−0.1 (4)C4C—C15C—C16C—C11C179.3 (2)
C9B—C10B—C11B—C12B179.6 (3)C14C—C15C—C16C—C11C−1.4 (4)
C10B—C11B—C12B—C13B179.8 (3)C4C—C15C—C16C—C7C−0.2 (4)
C16B—C11B—C12B—C13B−0.5 (4)C14C—C15C—C16C—C7C179.1 (2)
C11B—C12B—C13B—C14B0.1 (4)C2C—C1C—C17C—C18C33.4 (4)
C2B—C1B—C14B—C15B2.0 (4)C14C—C1C—C17C—C18C−148.9 (3)
C17B—C1B—C14B—C15B−177.4 (2)C1C—C17C—C18C—C19C−177.2 (2)
C2B—C1B—C14B—C13B−177.5 (2)C17C—C18C—C19C—C20C139.5 (3)
C17B—C1B—C14B—C13B3.2 (4)C18C—C19C—C20C—C21C176.3 (2)
C12B—C13B—C14B—C1B179.8 (2)C19C—C20C—C21C—C22C−176.3 (2)
C12B—C13B—C14B—C15B0.3 (4)C20C—C21C—C22C—C23C175.6 (2)
C1B—C14B—C15B—C4B−0.8 (4)C21C—C22C—C23C—O1C0.8 (4)
C13B—C14B—C15B—C4B178.7 (2)C21C—C22C—C23C—O2C−178.7 (2)
Cg1 and Cg2 are the centroids of the C1A–C4A,C15A,C14A and C7C–C11C,C16C rings, respectively.
D—H···AD—HH···AD···AD—H···A
O2A—H2O···O1Ci0.88 (2)1.79 (2)2.661 (3)177 (3)
O2B—H2P···O1Bii0.87 (2)1.78 (2)2.642 (3)173 (3)
O2C—H2Q···O1Aiii0.86 (2)1.78 (2)2.636 (3)172 (3)
C10C—H10C···O1Aiv0.952.463.336 (3)154
C10B—H10B···O1Bv0.952.513.354 (3)148
C10A—H10A···O1Cvi0.952.513.360 (3)150
C22C—H22E···Cg2vii0.992.633.500 (4)147
C19A—H19A···Cg1viii0.992.723.511 (4)137
Table 1

Hydrogen-bond geometry (Å, °)

Cg1 and Cg2 are the centroids of the C1A–C4A,C15A,C14A and C7C–C11C,C16C rings, respectively.

D—H⋯AD—HH⋯ADAD—H⋯A
O2A—H2O⋯O1Ci0.88 (2)1.79 (2)2.661 (3)177 (3)
O2B—H2P⋯O1Bii0.87 (2)1.78 (2)2.642 (3)173 (3)
O2C—H2Q⋯O1Aiii0.86 (2)1.78 (2)2.636 (3)172 (3)
C10C—H10C⋯O1Aiv0.952.463.336 (3)154
C10B—H10B⋯O1Bv0.952.513.354 (3)148
C10A—H10A⋯O1Cvi0.952.513.360 (3)150
C22C—H22ECg2vii0.992.633.500 (4)147
C19A—H19ACg1viii0.992.723.511 (4)137

Symmetry codes: (i) ; (ii) ; (iii) ; (iv) ; (v) ; (vi) ; (vii) ; (viii) .

  4 in total

1.  Noncovalent attachment of pyro-pheophorbide a to a carbon nanotube.

Authors:  Jari S Kavakka; Sami Heikkinen; Ilkka Kilpeläinen; Marco Mattila; Harri Lipsanen; Juho Helaja
Journal:  Chem Commun (Camb)       Date:  2006-11-03       Impact factor: 6.222

2.  A short history of SHELX.

Authors:  George M Sheldrick
Journal:  Acta Crystallogr A       Date:  2007-12-21       Impact factor: 2.290

3.  Solubilization of single-walled carbon nanotubes by using polycyclic aromatic ammonium amphiphiles in water--strategy for the design of high-performance solubilizers.

Authors:  Yasuhiko Tomonari; Hiroto Murakami; Naotoshi Nakashima
Journal:  Chemistry       Date:  2006-05-15       Impact factor: 5.236

4.  (2E,4E,6E)-3-Methyl-7-(pyren-1-yl)octa-2,4,6-trienoic acid.

Authors:  Stavros E Bariamis; George E Magoulas; Constantinos M Athanassopoulos; Dionissios Papaioannou; Manolis J Manos; Vassilios Nastopoulos
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2009-09-30
  4 in total

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