Literature DB >> 21588037

Tris(2-benzamido-eth-yl)ammonium tetra-fluoro-borate.

Marcy L Pilate, Henry Blount, Frank R Fronczek, Md Alamgir Hossain.   

Abstract

In the title compound, C(27)H(31)N(4)O(3) (+)·BF(4) (-), the central N atom is protonated. The three arms form a pocket and one amidic O atom accepts an inter-molecular hydrogen bond with the protonated amine. The tetra-fluoro-borate anion is outside the cavity and is hydrogen bonded to one amide N atom. Adjacent organic cations are connected by a pair of N-H⋯O hydrogen bonds, forming a chain.

Entities:  

Year:  2010        PMID: 21588037      PMCID: PMC3006998          DOI: 10.1107/S1600536810024323

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


Related literature

For general background to tris­(amino­eth­yl)–amine and its binding of anions, see: Bianchi et al. (1997 ▶); Kang et al. (2005 ▶); Hossain,(2008 ▶); For related structures, see: Bazzicalupi et al. (2009 ▶); Hossain et al. (2004 ▶); Burgess et al. (1991 ▶), Lo & Ng (2008 ▶); Saeed et al. (2010 ▶).

Experimental

Crystal data

C27H31N4O3n class="Chemical">BF4 − M = 546.37 Monoclinic, a = 13.325 (2) Å b = 9.572 (2) Å c = 21.118 (3) Å β = 94.546 (10)° V = 2685.1 (8) Å3 Z = 4 Mo Kα radiation μ = 0.11 mm−1 T = 90 K 0.27 × 0.25 × 0.10 mm

Data collection

Nonius KappaCCD diffractometer with Oxford Cryostream 31844 measured reflections 5914 independent reflections 3310 reflections with I > 2σ(I) R int = 0.068

Refinement

R[F 2 > 2σ(F 2)] = 0.048 wR(F 2) = 0.114 S = 1.00 5914 reflections 365 parameters H atoms treated by a mixture of independent and constrained refinement Δρmax = 0.26 e Å−3 Δρmin = −0.27 e Å−3 Data collection: COLLECT (Nonius, 1999 ▶); cell refinement: DENZO and SCALEPACK (Otwinowski & Minor, 1997 ▶); data reduction: DENZO and SCALEPACK; program(s) used to solve structure: SIR97 (Altomare et al., 1999 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: ORTEP-3 (Farrugia, 1997 ▶); software used to prepare material for publication: SHELXL97. Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536810024323/rk2214sup1.cif Structure factors: contains datablocks I. DOI: 10.1107/S1600536810024323/rk2214Isup2.hkl Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C27H31N4O3+·BF4F(000) = 1144
Mr = 546.37Dx = 1.352 Mg m3
Monoclinic, P21/nMelting point: 423 K
Hall symbol: -P 2ynMo Kα radiation, λ = 0.71073 Å
a = 13.325 (2) ÅCell parameters from 6170 reflections
b = 9.572 (2) Åθ = 2.5–27.1°
c = 21.118 (3) ŵ = 0.11 mm1
β = 94.546 (10)°T = 90 K
V = 2685.1 (8) Å3Block, colourless
Z = 40.27 × 0.25 × 0.10 mm
Nonius KappaCCD diffractometer with Oxford Cryostream3310 reflections with I > 2σ(I)
Radiation source: fine–focus sealed tubeRint = 0.068
graphiteθmax = 27.1°, θmin = 2.6°
ω–scans with κ–offsetsh = −17→17
31844 measured reflectionsk = −12→12
5914 independent reflectionsl = −27→26
Refinement on F2Secondary atom site location: difference Fourier map
Least-squares matrix: fullHydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.048H atoms treated by a mixture of independent and constrained refinement
wR(F2) = 0.114w = 1/[σ2(Fo2) + (0.0492P)2] where P = (Fo2 + 2Fc2)/3
S = 1.00(Δ/σ)max = 0.001
5914 reflectionsΔρmax = 0.26 e Å3
365 parametersΔρmin = −0.27 e Å3
0 restraintsExtinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4
Primary atom site location: structure-invariant direct methodsExtinction coefficient: 0.0047 (7)
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 > σ(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
O10.69598 (10)0.66708 (15)0.51248 (6)0.0235 (3)
O20.97004 (10)0.65535 (14)0.51217 (6)0.0237 (3)
O30.66033 (11)0.35955 (15)0.42976 (6)0.0269 (4)
N10.77743 (12)0.52786 (18)0.61191 (7)0.0190 (4)
H1N0.7663 (14)0.584 (2)0.5718 (9)0.023*
N20.55317 (13)0.65036 (19)0.56356 (7)0.0227 (4)
H2N0.4881 (16)0.655 (2)0.5611 (9)0.027*
N30.89693 (13)0.78188 (18)0.58685 (7)0.0207 (4)
H3N0.8721 (15)0.867 (2)0.5972 (9)0.025*
N40.81500 (13)0.39353 (18)0.47972 (7)0.0204 (4)
H4N0.8780 (16)0.412 (2)0.4753 (9)0.024*
C10.67293 (15)0.4962 (2)0.63108 (9)0.0212 (5)
H1A0.67820.46110.67530.025*
H1B0.64320.42080.60350.025*
C20.60230 (16)0.6219 (2)0.62667 (8)0.0238 (5)
H2A0.54950.60730.65640.029*
H2B0.64120.70580.64110.029*
C30.60327 (16)0.6812 (2)0.51281 (9)0.0208 (5)
C40.54443 (15)0.7377 (2)0.45532 (9)0.0203 (5)
C50.46519 (16)0.8306 (2)0.45962 (9)0.0243 (5)
H50.44420.85550.50010.029*
C60.41677 (16)0.8870 (2)0.40503 (10)0.0293 (5)
H60.36320.95160.40810.035*
C70.44618 (16)0.8496 (2)0.34635 (10)0.0310 (6)
H70.41210.88750.30900.037*
C80.52504 (17)0.7572 (2)0.34138 (10)0.0312 (6)
H80.54470.73130.30080.037*
C90.57503 (16)0.7029 (2)0.39571 (9)0.0269 (5)
H90.63050.64170.39240.032*
C100.83608 (15)0.6116 (2)0.66272 (9)0.0218 (5)
H10A0.86000.54830.69780.026*
H10B0.79080.68140.68010.026*
C110.92603 (15)0.6867 (2)0.63859 (9)0.0224 (5)
H11A0.96120.73980.67400.027*
H11B0.97370.61680.62390.027*
C120.92266 (15)0.7599 (2)0.52720 (9)0.0197 (5)
C130.88929 (15)0.8684 (2)0.47918 (9)0.0191 (5)
C140.80176 (16)0.9456 (2)0.48281 (9)0.0237 (5)
H140.76180.93250.51760.028*
C150.77232 (17)1.0423 (2)0.43572 (9)0.0270 (5)
H150.71201.09420.43820.032*
C160.83094 (17)1.0627 (2)0.38534 (9)0.0267 (5)
H160.81121.12960.35350.032*
C170.91824 (17)0.9861 (2)0.38106 (9)0.0272 (5)
H170.95831.00000.34630.033*
C180.94687 (16)0.8890 (2)0.42784 (9)0.0231 (5)
H181.00650.83590.42480.028*
C190.83279 (16)0.3959 (2)0.59740 (8)0.0211 (5)
H19A0.82990.33090.63370.025*
H19B0.90450.41920.59350.025*
C200.79230 (16)0.3222 (2)0.53764 (8)0.0223 (5)
H20A0.82100.22680.53740.027*
H20B0.71840.31310.53810.027*
C210.74826 (15)0.4008 (2)0.42910 (9)0.0199 (5)
C220.78649 (15)0.4566 (2)0.36920 (9)0.0211 (5)
C230.86024 (15)0.5588 (2)0.36906 (9)0.0228 (5)
H230.88700.59890.40800.027*
C240.89490 (16)0.6025 (2)0.31219 (9)0.0280 (5)
H240.94400.67460.31220.034*
C250.85853 (18)0.5420 (2)0.25530 (9)0.0308 (6)
H250.88440.56990.21660.037*
C260.78424 (18)0.4403 (2)0.25513 (10)0.0338 (6)
H260.75890.39860.21630.041*
C270.74720 (17)0.4001 (2)0.31173 (9)0.0274 (5)
H270.69450.33320.31140.033*
B10.8258 (2)1.0373 (3)0.69733 (11)0.0262 (6)
F10.74417 (10)0.95062 (13)0.70473 (5)0.0393 (4)
F20.81014 (10)1.16644 (13)0.72363 (5)0.0396 (4)
F30.83701 (9)1.05339 (12)0.63193 (5)0.0297 (3)
F40.91193 (10)0.97574 (15)0.72626 (5)0.0444 (4)
U11U22U33U12U13U23
O10.0192 (9)0.0295 (9)0.0217 (7)0.0012 (7)0.0004 (6)0.0045 (6)
O20.0247 (9)0.0212 (9)0.0252 (8)0.0040 (7)0.0008 (6)−0.0025 (6)
O30.0196 (9)0.0279 (9)0.0329 (8)0.0000 (7)0.0000 (6)0.0030 (7)
N10.0182 (10)0.0217 (10)0.0169 (9)−0.0006 (8)−0.0003 (7)0.0011 (7)
N20.0147 (10)0.0320 (11)0.0213 (9)0.0018 (9)0.0014 (8)0.0021 (8)
N30.0235 (11)0.0182 (10)0.0201 (9)0.0020 (8)0.0010 (7)0.0013 (8)
N40.0170 (10)0.0250 (10)0.0192 (9)−0.0013 (9)0.0013 (8)−0.0006 (8)
C10.0182 (12)0.0258 (13)0.0199 (11)−0.0029 (10)0.0034 (8)0.0007 (9)
C20.0230 (12)0.0304 (13)0.0181 (11)0.0016 (10)0.0027 (9)0.0003 (9)
C30.0210 (13)0.0188 (12)0.0223 (11)−0.0010 (10)0.0007 (9)−0.0017 (9)
C40.0183 (12)0.0212 (12)0.0209 (11)−0.0012 (10)−0.0010 (9)0.0017 (9)
C50.0226 (13)0.0241 (12)0.0263 (12)−0.0013 (10)0.0036 (9)0.0007 (10)
C60.0250 (13)0.0293 (14)0.0333 (13)0.0044 (11)0.0010 (10)0.0069 (11)
C70.0247 (13)0.0398 (15)0.0275 (12)0.0034 (12)−0.0040 (10)0.0123 (11)
C80.0321 (14)0.0391 (15)0.0224 (12)0.0044 (12)0.0024 (10)0.0050 (10)
C90.0231 (13)0.0292 (14)0.0283 (12)0.0022 (10)0.0021 (9)0.0023 (10)
C100.0237 (12)0.0236 (12)0.0173 (10)−0.0001 (10)−0.0028 (9)−0.0019 (9)
C110.0212 (12)0.0236 (12)0.0218 (11)0.0013 (10)−0.0010 (9)0.0010 (9)
C120.0172 (12)0.0195 (12)0.0221 (11)−0.0051 (10)−0.0012 (9)−0.0019 (9)
C130.0185 (12)0.0173 (12)0.0212 (11)−0.0019 (10)−0.0004 (8)−0.0035 (9)
C140.0274 (13)0.0228 (12)0.0206 (11)−0.0009 (11)0.0010 (9)−0.0039 (10)
C150.0284 (13)0.0226 (13)0.0292 (12)0.0035 (11)−0.0024 (10)−0.0026 (10)
C160.0325 (14)0.0207 (12)0.0253 (12)−0.0028 (11)−0.0065 (10)0.0017 (10)
C170.0302 (14)0.0286 (14)0.0225 (12)−0.0068 (11)0.0009 (9)−0.0002 (10)
C180.0206 (12)0.0225 (12)0.0261 (11)−0.0021 (10)0.0016 (9)−0.0034 (10)
C190.0239 (12)0.0181 (12)0.0213 (11)0.0051 (10)0.0019 (9)0.0012 (9)
C200.0248 (13)0.0215 (12)0.0210 (11)0.0003 (10)0.0048 (9)0.0006 (9)
C210.0159 (12)0.0168 (11)0.0268 (12)0.0024 (10)0.0004 (9)−0.0039 (9)
C220.0184 (12)0.0216 (12)0.0225 (11)0.0055 (10)−0.0029 (9)0.0014 (9)
C230.0243 (13)0.0236 (13)0.0203 (11)0.0040 (10)0.0012 (9)−0.0021 (9)
C240.0264 (13)0.0264 (13)0.0312 (13)0.0020 (11)0.0021 (10)0.0031 (10)
C250.0428 (16)0.0291 (14)0.0209 (12)0.0080 (12)0.0050 (10)0.0042 (10)
C260.0472 (16)0.0296 (14)0.0231 (12)0.0057 (13)−0.0079 (11)0.0007 (10)
C270.0294 (14)0.0230 (13)0.0285 (12)−0.0003 (11)−0.0058 (10)0.0036 (10)
B10.0297 (16)0.0295 (16)0.0199 (13)0.0049 (13)0.0043 (11)0.0011 (11)
F10.0437 (9)0.0353 (8)0.0392 (7)−0.0023 (7)0.0056 (6)0.0090 (6)
F20.0628 (10)0.0305 (8)0.0269 (7)0.0042 (7)0.0127 (6)−0.0040 (6)
F30.0397 (8)0.0307 (8)0.0194 (6)0.0108 (6)0.0058 (5)0.0022 (5)
F40.0383 (9)0.0703 (11)0.0249 (7)0.0223 (8)0.0048 (6)0.0119 (7)
O1—C31.243 (2)C11—H11A0.9900
O2—C121.238 (2)C11—H11B0.9900
O3—C211.238 (2)C12—C131.495 (3)
N1—C191.506 (2)C13—C141.388 (3)
N1—C101.507 (2)C13—C181.391 (3)
N1—C11.511 (2)C14—C151.392 (3)
N1—H1N1.003 (19)C14—H140.9500
N2—C31.340 (2)C15—C161.383 (3)
N2—C21.463 (2)C15—H150.9500
N2—H2N0.87 (2)C16—C171.384 (3)
N3—C121.348 (2)C16—H160.9500
N3—C111.452 (2)C17—C181.388 (3)
N3—H3N0.92 (2)C17—H170.9500
N4—C211.337 (2)C18—H180.9500
N4—C201.453 (2)C19—C201.508 (3)
N4—H4N0.87 (2)C19—H19A0.9900
C1—C21.526 (3)C19—H19B0.9900
C1—H1A0.9900C20—H20A0.9900
C1—H1B0.9900C20—H20B0.9900
C2—H2A0.9900C21—C221.499 (3)
C2—H2B0.9900C22—C231.387 (3)
C3—C41.493 (3)C22—C271.392 (3)
C4—C51.389 (3)C23—C241.385 (3)
C4—C91.394 (3)C23—H230.9500
C5—C61.385 (3)C24—C251.386 (3)
C5—H50.9500C24—H240.9500
C6—C71.376 (3)C25—C261.388 (3)
C6—H60.9500C25—H250.9500
C7—C81.384 (3)C26—C271.384 (3)
C7—H70.9500C26—H260.9500
C8—C91.382 (3)C27—H270.9500
C8—H80.9500B1—F21.378 (3)
C9—H90.9500B1—F11.387 (3)
C10—C111.520 (3)B1—F41.388 (3)
C10—H10A0.9900B1—F31.409 (2)
C10—H10B0.9900
C19—N1—C10110.86 (15)O2—C12—N3122.60 (18)
C19—N1—C1111.27 (16)O2—C12—C13121.20 (17)
C10—N1—C1110.66 (15)N3—C12—C13116.19 (18)
C19—N1—H1N108.6 (11)C14—C13—C18119.04 (19)
C10—N1—H1N110.5 (11)C14—C13—C12122.60 (17)
C1—N1—H1N104.8 (11)C18—C13—C12118.33 (18)
C3—N2—C2123.66 (18)C13—C14—C15120.34 (19)
C3—N2—H2N120.1 (13)C13—C14—H14119.8
C2—N2—H2N115.9 (13)C15—C14—H14119.8
C12—N3—C11122.19 (18)C16—C15—C14119.9 (2)
C12—N3—H3N119.1 (12)C16—C15—H15120.0
C11—N3—H3N117.5 (12)C14—C15—H15120.0
C21—N4—C20121.86 (18)C15—C16—C17120.3 (2)
C21—N4—H4N119.3 (13)C15—C16—H16119.9
C20—N4—H4N116.9 (13)C17—C16—H16119.9
N1—C1—C2113.71 (17)C16—C17—C18119.6 (2)
N1—C1—H1A108.8C16—C17—H17120.2
C2—C1—H1A108.8C18—C17—H17120.2
N1—C1—H1B108.8C17—C18—C13120.8 (2)
C2—C1—H1B108.8C17—C18—H18119.6
H1A—C1—H1B107.7C13—C18—H18119.6
N2—C2—C1115.56 (16)N1—C19—C20114.47 (16)
N2—C2—H2A108.4N1—C19—H19A108.6
C1—C2—H2A108.4C20—C19—H19A108.6
N2—C2—H2B108.4N1—C19—H19B108.6
C1—C2—H2B108.4C20—C19—H19B108.6
H2A—C2—H2B107.5H19A—C19—H19B107.6
O1—C3—N2122.62 (18)N4—C20—C19113.57 (17)
O1—C3—C4119.51 (17)N4—C20—H20A108.9
N2—C3—C4117.86 (18)C19—C20—H20A108.9
C5—C4—C9119.34 (18)N4—C20—H20B108.9
C5—C4—C3122.10 (17)C19—C20—H20B108.9
C9—C4—C3118.41 (19)H20A—C20—H20B107.7
C6—C5—C4120.12 (19)O3—C21—N4122.99 (18)
C6—C5—H5119.9O3—C21—C22120.58 (17)
C4—C5—H5119.9N4—C21—C22116.38 (18)
C7—C6—C5120.0 (2)C23—C22—C27119.33 (19)
C7—C6—H6120.0C23—C22—C21122.77 (17)
C5—C6—H6120.0C27—C22—C21117.88 (19)
C6—C7—C8120.5 (2)C24—C23—C22119.99 (19)
C6—C7—H7119.8C24—C23—H23120.0
C8—C7—H7119.8C22—C23—H23120.0
C9—C8—C7119.8 (2)C23—C24—C25120.5 (2)
C9—C8—H8120.1C23—C24—H24119.8
C7—C8—H8120.1C25—C24—H24119.8
C8—C9—C4120.3 (2)C24—C25—C26119.7 (2)
C8—C9—H9119.9C24—C25—H25120.1
C4—C9—H9119.9C26—C25—H25120.1
N1—C10—C11113.03 (15)C27—C26—C25119.7 (2)
N1—C10—H10A109.0C27—C26—H26120.1
C11—C10—H10A109.0C25—C26—H26120.1
N1—C10—H10B109.0C26—C27—C22120.6 (2)
C11—C10—H10B109.0C26—C27—H27119.7
H10A—C10—H10B107.8C22—C27—H27119.7
N3—C11—C10112.24 (16)F2—B1—F1110.24 (19)
N3—C11—H11A109.2F2—B1—F4110.49 (19)
C10—C11—H11A109.2F1—B1—F4108.96 (19)
N3—C11—H11B109.2F2—B1—F3109.16 (19)
C10—C11—H11B109.2F1—B1—F3108.70 (18)
H11A—C11—H11B107.9F4—B1—F3109.26 (18)
C19—N1—C1—C2−162.24 (15)N3—C12—C13—C18151.42 (18)
C10—N1—C1—C274.0 (2)C18—C13—C14—C15−0.1 (3)
C3—N2—C2—C1−61.3 (3)C12—C13—C14—C15−177.89 (18)
N1—C1—C2—N283.1 (2)C13—C14—C15—C16−0.7 (3)
C2—N2—C3—O111.6 (3)C14—C15—C16—C170.8 (3)
C2—N2—C3—C4−167.04 (19)C15—C16—C17—C18−0.3 (3)
O1—C3—C4—C5−140.5 (2)C16—C17—C18—C13−0.5 (3)
N2—C3—C4—C538.1 (3)C14—C13—C18—C170.6 (3)
O1—C3—C4—C935.0 (3)C12—C13—C18—C17178.56 (18)
N2—C3—C4—C9−146.4 (2)C10—N1—C19—C20−166.83 (16)
C9—C4—C5—C60.5 (3)C1—N1—C19—C2069.6 (2)
C3—C4—C5—C6175.96 (19)C21—N4—C20—C19−140.97 (19)
C4—C5—C6—C70.9 (3)N1—C19—C20—N472.5 (2)
C5—C6—C7—C8−1.0 (3)C20—N4—C21—O36.9 (3)
C6—C7—C8—C9−0.4 (4)C20—N4—C21—C22−170.42 (17)
C7—C8—C9—C41.9 (3)O3—C21—C22—C23149.1 (2)
C5—C4—C9—C8−1.9 (3)N4—C21—C22—C23−33.5 (3)
C3—C4—C9—C8−177.53 (19)O3—C21—C22—C27−32.3 (3)
C19—N1—C10—C1175.0 (2)N4—C21—C22—C27145.04 (19)
C1—N1—C10—C11−161.06 (17)C27—C22—C23—C24−0.8 (3)
C12—N3—C11—C10−112.8 (2)C21—C22—C23—C24177.74 (19)
N1—C10—C11—N358.7 (2)C22—C23—C24—C25−1.9 (3)
C11—N3—C12—O22.2 (3)C23—C24—C25—C262.3 (3)
C11—N3—C12—C13−178.72 (17)C24—C25—C26—C27−0.1 (3)
O2—C12—C13—C14148.4 (2)C25—C26—C27—C22−2.5 (3)
N3—C12—C13—C14−30.7 (3)C23—C22—C27—C263.0 (3)
O2—C12—C13—C18−29.5 (3)C21—C22—C27—C26−175.61 (19)
D—H···AD—HH···AD···AD—H···A
N1—H1N···O11.003 (19)1.70 (2)2.646 (2)155.2 (16)
N2—H2N···O3i0.87 (2)2.01 (2)2.861 (2)168.8 (19)
N3—H3N···F30.92 (2)2.00 (2)2.901 (2)170.0 (18)
N4—H4N···O2ii0.87 (2)2.12 (2)2.894 (2)147.5 (19)
Table 1

Hydrogen-bond geometry (Å, °)

D—H⋯AD—HH⋯ADAD—H⋯A
N1—H1N⋯O11.003 (19)1.70 (2)2.646 (2)155.2 (16)
N2—H2N⋯O3i0.87 (2)2.01 (2)2.861 (2)168.8 (19)
N3—H3N⋯F30.92 (2)2.00 (2)2.901 (2)170.0 (18)
N4—H4N⋯O2ii0.87 (2)2.12 (2)2.894 (2)147.5 (19)

Symmetry codes: (i) ; (ii) .

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1.  A short history of SHELX.

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

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Authors:  Sung Ok Kang; Md Alamgir Hossain; Douglas Powell; Kristin Bowman-James
Journal:  Chem Commun (Camb)       Date:  2004-11-29       Impact factor: 6.222

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Authors:  Kong Mun Lo; Seik Weng Ng
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2008-04-26

4.  Anion binding by protonated forms of the tripodal ligand tren.

Authors:  Carla Bazzicalupi; Andrea Bencini; Antonio Bianchi; Andrea Danesi; Claudia Giorgi; Barbara Valtancoli
Journal:  Inorg Chem       Date:  2009-03-16       Impact factor: 5.165

5.  Anion binding with a tripodal amine.

Authors:  Md Alamgir Hossain; Jennifer Ann Liljegren; Douglas Powell; Kristin Bowman-James
Journal:  Inorg Chem       Date:  2004-06-14       Impact factor: 5.165

6.  3,3'-Di-tert-butyl-1,1'-[1,3-phenyl-enebis(methyl-ene)]diurea.

Authors:  Musabbir A Saeed; Frank R Fronczek; Md Alamgir Hossain
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-02-20
  6 in total
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1.  N (1)-(Thio-phen-2-ylmeth-yl)-N (3),N (3)-bis-[3-(thio-phen-2-yl-methyl-ammonio)-prop-yl]propane-1,3-di-ammonium hexa-fluorido-silicate methanol tris-olvate.

Authors:  Syed A Haque; Dominique N Cooper; Douglas R Powell; Ramaiyer Venkatraman; Md Alamgir Hossain
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2013-11-06
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