Literature DB >> 21588320

3-[(2-Hy-droxy-1-naphth-yl)(pyrrolidin-1-yl)meth-yl]benzonitrile.

Meng Wei Xue1.   

Abstract

The title compound, C(22)H(20)N(2)O, was obtained from the condensation reaction of 3-formyl-benzonitrile, 2-naphthol and pyrrolidine. There are two mol-ecules in the asymmetric unit, having similar conformations. Intra-molecular O-H⋯N and C-H⋯O hydrogen bonds occur, with only van der Waals forces between mol-ecules. The dihedral angles between the naphthalene ring system and the phenyl ring in the two molecules are 75.28 (10) and 76.07 (11)°. The five-membered rings adopt half-chair conformations.

Entities:  

Year:  2010        PMID: 21588320      PMCID: PMC3007212          DOI: 10.1107/S1600536810026152

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


Related literature

For the applications of Betti-type reactions, see: Lu et al. (2002 ▶); Xu et al. (2004 ▶); Wang et al. (2005 ▶).

Experimental

Crystal data

C22H20N2O M = 328.40 Orthorhombic, a = 18.735 (4) Å b = 10.475 (2) Å c = 18.122 (4) Å V = 3556.4 (12) Å3 Z = 8 Mo Kα radiation μ = 0.08 mm−1 T = 293 K 0.20 × 0.20 × 0.20 mm

Data collection

Rigaku Mercury2 diffractometer Absorption correction: multi-scan (CrystalClear; Rigaku, 2005 ▶) T min = 0.825, T max = 1.000 31413 measured reflections 3612 independent reflections 2166 reflections with I > 2σ(I) R int = 0.125

Refinement

R[F 2 > 2σ(F 2)] = 0.064 wR(F 2) = 0.149 S = 1.07 3612 reflections 452 parameters 1 restraint H-atom parameters constrained Δρmax = 0.16 e Å−3 Δρmin = −0.16 e Å−3 Data collection: CrystalClear (Rigaku, 2005 ▶); cell refinement: CrystalClear; data reduction: CrystalClear; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: SHELXTL/PC (Sheldrick, 2008 ▶); software used to prepare material for publication: SHELXTL/PC. Crystal structure: contains datablocks I, global. DOI: 10.1107/S1600536810026152/rz2464sup1.cif Structure factors: contains datablocks I. DOI: 10.1107/S1600536810026152/rz2464Isup2.hkl Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C22H20N2OF(000) = 1392
Mr = 328.40Dx = 1.227 Mg m3
Orthorhombic, Pca21Mo Kα radiation, λ = 0.71073 Å
Hall symbol: P 2c -2acCell parameters from 3612 reflections
a = 18.735 (4) Åθ = 2.6–26.0°
b = 10.475 (2) ŵ = 0.08 mm1
c = 18.122 (4) ÅT = 293 K
V = 3556.4 (12) Å3Prism, colourless
Z = 80.20 × 0.20 × 0.20 mm
Rigaku Mercury2 diffractometer3612 independent reflections
Radiation source: fine-focus sealed tube2166 reflections with I > 2σ(I)
graphiteRint = 0.125
Detector resolution: 13.6612 pixels mm-1θmax = 26.0°, θmin = 3.1°
CCD_Profile_fitting scansh = −23→23
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005)k = −12→12
Tmin = 0.825, Tmax = 1.000l = −22→22
31413 measured 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) = 0.149H-atom parameters constrained
S = 1.07w = 1/[σ2(Fo2) + (0.065P)2 + 0.150P] where P = (Fo2 + 2Fc2)/3
3612 reflections(Δ/σ)max < 0.001
452 parametersΔρmax = 0.16 e Å3
1 restraintΔρmin = −0.16 e Å3
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'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
O10.99425 (19)0.9948 (4)0.6386 (2)0.0722 (11)
H1A0.98480.92790.61730.108*
O20.1596 (2)0.5126 (4)0.3506 (2)0.0758 (11)
H2A0.17990.58050.35870.114*
C200.8916 (3)0.9893 (4)0.4063 (3)0.0511 (12)
C340.2940 (2)0.6121 (4)0.4724 (3)0.0481 (11)
C10.8658 (3)1.0060 (5)0.6434 (3)0.0506 (12)
N30.1789 (2)0.7119 (3)0.4331 (2)0.0556 (11)
C170.8022 (3)0.8267 (5)0.4799 (3)0.0613 (13)
H17A0.77170.77070.50440.074*
C160.8526 (2)0.8953 (4)0.5204 (3)0.0478 (11)
N10.9174 (2)0.7925 (4)0.6241 (2)0.0553 (11)
C350.3411 (3)0.6798 (5)0.5162 (3)0.0649 (14)
H35A0.32320.73540.55160.078*
C230.1768 (2)0.4942 (4)0.4814 (3)0.0540 (12)
C210.8972 (2)0.9772 (4)0.4825 (3)0.0511 (12)
H21A0.93121.02450.50810.061*
C330.2139 (2)0.6242 (4)0.4850 (3)0.0512 (12)
H33A0.20680.65830.53480.061*
C20.9328 (3)1.0546 (5)0.6582 (3)0.0560 (13)
C90.8046 (3)1.0760 (5)0.6660 (2)0.0495 (12)
C390.3220 (2)0.5309 (4)0.4191 (3)0.0504 (12)
H39A0.29150.48410.38900.060*
C110.8581 (3)0.8773 (4)0.6034 (3)0.0521 (13)
H11A0.81370.83750.62040.063*
C310.1686 (3)0.4212 (5)0.5466 (3)0.0596 (14)
C220.9394 (3)1.0752 (6)0.3687 (3)0.0764 (17)
C260.1079 (3)0.2602 (6)0.4724 (5)0.084 (2)
H26A0.08420.18250.46890.100*
C420.1570 (3)0.9229 (6)0.3957 (4)0.091 (2)
H42A0.15930.92490.34220.110*
H42B0.16281.00910.41420.110*
C320.1309 (3)0.3015 (5)0.5413 (4)0.0719 (18)
C410.2134 (3)0.8384 (4)0.4258 (3)0.0692 (15)
H41A0.25380.83410.39250.083*
H41B0.22970.86910.47340.083*
C100.8134 (3)1.1955 (5)0.7035 (3)0.0591 (14)
C40.8831 (3)1.2381 (5)0.7176 (3)0.0683 (16)
H4A0.88951.31370.74360.082*
C380.3954 (2)0.5194 (5)0.4108 (3)0.0522 (12)
C30.9407 (3)1.1739 (5)0.6948 (3)0.0665 (15)
H3A0.98601.20720.70300.080*
C120.9237 (3)0.6728 (5)0.5805 (3)0.0701 (16)
H12A0.94320.68940.53180.084*
H12B0.87780.63080.57540.084*
C80.7341 (3)1.0379 (5)0.6519 (3)0.0622 (14)
H8A0.72650.96300.62540.075*
C300.1949 (3)0.4570 (6)0.6151 (4)0.0794 (18)
H30A0.22110.53200.61930.095*
C240.1520 (3)0.4480 (5)0.4139 (4)0.0611 (14)
C440.1058 (3)0.7426 (5)0.4580 (4)0.0766 (17)
H44A0.10420.75140.51120.092*
H44B0.07260.67610.44330.092*
C270.1212 (4)0.2315 (6)0.6069 (6)0.098 (3)
H27A0.09670.15430.60420.118*
C250.1188 (3)0.3286 (5)0.4107 (4)0.0712 (16)
H25A0.10400.29620.36540.085*
C190.8404 (3)0.9221 (5)0.3668 (3)0.0645 (15)
H19A0.83600.93260.31600.077*
C180.7966 (3)0.8401 (5)0.4044 (3)0.0686 (15)
H18A0.76270.79290.37870.082*
C370.4410 (3)0.5868 (5)0.4566 (3)0.0708 (16)
H37A0.49010.57740.45170.085*
C50.7527 (4)1.2623 (5)0.7266 (3)0.0744 (16)
H5A0.75901.33840.75230.089*
C150.9121 (3)0.7469 (5)0.7019 (3)0.0729 (16)
H15A0.86400.71900.71310.088*
H15B0.92560.81380.73620.088*
N20.9776 (4)1.1433 (6)0.3394 (3)0.114 (2)
C280.1449 (5)0.2691 (8)0.6720 (6)0.113 (3)
H28A0.13650.22040.71410.136*
C400.4246 (3)0.4309 (6)0.3597 (4)0.0746 (17)
C60.6855 (4)1.2217 (7)0.7135 (4)0.0821 (18)
H40A0.64641.26910.72940.099*
C70.6758 (3)1.1065 (7)0.6754 (4)0.0794 (18)
H7A0.63001.07640.66610.095*
C130.9750 (4)0.5932 (6)0.6269 (4)0.103 (2)
H13A0.96430.50290.62220.123*
H13B1.02400.60770.61180.123*
N40.4512 (3)0.3616 (7)0.3192 (4)0.119 (2)
C430.0872 (3)0.8681 (6)0.4207 (5)0.103 (2)
H43A0.05580.85390.37890.123*
H43B0.06380.92540.45510.123*
C290.1831 (5)0.3845 (8)0.6764 (4)0.111 (3)
H29A0.20060.41170.72170.134*
C140.9633 (4)0.6377 (6)0.7056 (4)0.100 (2)
H14A0.94370.56920.73530.121*
H14B1.00810.66490.72740.121*
C360.4140 (3)0.6667 (5)0.5085 (4)0.0752 (17)
H36A0.44470.71270.53890.090*
U11U22U33U12U13U23
O10.060 (2)0.066 (2)0.090 (3)−0.0146 (19)0.007 (2)−0.011 (2)
O20.081 (3)0.067 (3)0.079 (3)−0.006 (2)−0.009 (2)−0.005 (2)
C200.055 (3)0.046 (3)0.052 (3)0.000 (2)−0.001 (3)0.007 (2)
C340.051 (3)0.041 (3)0.052 (3)−0.006 (2)−0.002 (2)0.001 (2)
C10.055 (3)0.046 (3)0.051 (3)−0.010 (2)0.003 (2)0.000 (2)
N30.053 (2)0.039 (2)0.074 (3)0.0024 (18)0.012 (2)−0.004 (2)
C170.050 (3)0.063 (3)0.071 (4)−0.015 (3)0.003 (3)−0.009 (3)
C160.049 (3)0.043 (3)0.052 (3)−0.004 (2)0.002 (2)−0.009 (2)
N10.065 (3)0.047 (2)0.054 (3)−0.001 (2)−0.002 (2)0.002 (2)
C350.075 (4)0.050 (3)0.070 (4)−0.005 (3)−0.004 (3)−0.011 (3)
C230.047 (3)0.042 (3)0.073 (3)0.001 (2)0.016 (3)−0.001 (3)
C210.050 (3)0.049 (3)0.055 (3)−0.007 (2)0.000 (2)−0.005 (2)
C330.064 (3)0.035 (2)0.055 (3)−0.001 (2)0.012 (3)−0.002 (2)
C20.055 (3)0.054 (3)0.059 (3)−0.009 (3)0.010 (3)−0.001 (2)
C90.059 (3)0.048 (3)0.041 (3)−0.007 (2)0.004 (2)0.002 (2)
C390.052 (3)0.044 (3)0.055 (3)−0.006 (2)0.004 (2)−0.005 (2)
C110.049 (3)0.045 (3)0.062 (3)−0.009 (2)−0.001 (2)0.004 (2)
C310.061 (3)0.041 (3)0.077 (4)0.003 (2)0.023 (3)−0.001 (3)
C220.088 (4)0.084 (5)0.057 (4)−0.013 (4)−0.007 (3)0.006 (3)
C260.046 (3)0.047 (3)0.158 (7)−0.004 (3)0.008 (4)−0.017 (5)
C420.090 (5)0.056 (4)0.129 (6)0.017 (3)0.001 (4)0.007 (4)
C320.052 (3)0.043 (3)0.121 (6)0.005 (3)0.030 (4)0.014 (3)
C410.076 (4)0.042 (3)0.090 (4)−0.003 (3)0.003 (3)0.002 (3)
C100.068 (4)0.052 (3)0.058 (3)−0.002 (3)0.002 (3)0.001 (3)
C40.084 (4)0.056 (3)0.065 (4)−0.018 (3)0.005 (3)−0.010 (3)
C380.047 (3)0.050 (3)0.059 (3)−0.005 (2)0.007 (3)0.004 (3)
C30.069 (4)0.065 (3)0.066 (4)−0.022 (3)0.004 (3)−0.011 (3)
C120.090 (4)0.054 (3)0.067 (4)0.009 (3)−0.009 (3)−0.003 (3)
C80.064 (4)0.057 (3)0.066 (4)−0.004 (3)0.004 (3)0.001 (3)
C300.101 (5)0.058 (4)0.079 (5)0.003 (3)0.026 (4)0.012 (4)
C240.049 (3)0.049 (3)0.085 (4)−0.007 (2)0.005 (3)−0.015 (3)
C440.063 (3)0.066 (4)0.101 (5)0.005 (3)0.012 (3)0.001 (3)
C270.086 (5)0.049 (4)0.160 (8)0.008 (3)0.048 (5)0.029 (5)
C250.053 (3)0.051 (3)0.110 (5)−0.005 (3)0.000 (3)−0.015 (4)
C190.071 (4)0.064 (4)0.058 (3)0.001 (3)−0.002 (3)−0.005 (3)
C180.070 (4)0.066 (4)0.070 (4)−0.012 (3)−0.010 (3)−0.014 (3)
C370.046 (3)0.070 (4)0.097 (5)−0.007 (3)−0.003 (3)0.000 (3)
C50.094 (5)0.065 (3)0.064 (4)0.006 (4)0.007 (3)−0.007 (3)
C150.096 (4)0.062 (4)0.061 (4)−0.001 (3)−0.011 (3)0.002 (3)
N20.135 (5)0.125 (5)0.083 (4)−0.047 (4)0.015 (4)0.016 (4)
C280.148 (8)0.080 (6)0.112 (7)0.016 (5)0.056 (6)0.050 (5)
C400.045 (3)0.090 (5)0.089 (5)0.003 (3)0.007 (3)−0.012 (4)
C60.084 (5)0.081 (5)0.081 (5)0.026 (4)0.003 (4)−0.002 (4)
C70.060 (4)0.092 (5)0.086 (5)0.007 (4)0.004 (3)0.007 (4)
C130.146 (7)0.076 (4)0.087 (5)0.021 (4)−0.015 (5)0.003 (4)
N40.072 (4)0.150 (6)0.134 (6)0.023 (4)0.011 (4)−0.041 (5)
C430.070 (4)0.074 (4)0.164 (7)0.015 (3)0.006 (5)−0.002 (5)
C290.158 (7)0.096 (6)0.081 (5)0.014 (5)0.043 (5)0.018 (4)
C140.136 (6)0.067 (4)0.098 (6)0.013 (4)−0.035 (5)0.008 (4)
C360.071 (4)0.061 (4)0.094 (5)−0.014 (3)−0.014 (3)−0.018 (3)
O1—C21.357 (6)C41—H41A0.9700
O1—H1A0.8200C41—H41B0.9700
O2—C241.339 (7)C10—C51.400 (8)
O2—H2A0.8200C10—C41.403 (7)
C20—C191.388 (7)C4—C31.336 (8)
C20—C211.391 (7)C4—H4A0.9300
C20—C221.441 (8)C38—C371.384 (7)
C34—C351.382 (7)C38—C401.419 (8)
C34—C391.389 (7)C3—H3A0.9300
C34—C331.523 (6)C12—C131.526 (8)
C1—C21.381 (7)C12—H12A0.9700
C1—C91.421 (7)C12—H12B0.9700
C1—C111.537 (7)C8—C71.376 (8)
N3—C331.469 (6)C8—H8A0.9300
N3—C441.477 (6)C30—C291.363 (9)
N3—C411.481 (6)C30—H30A0.9300
C17—C181.381 (8)C24—C251.399 (7)
C17—C161.395 (7)C44—C431.519 (8)
C17—H17A0.9300C44—H44A0.9700
C16—C211.381 (6)C44—H44B0.9700
C16—C111.520 (7)C27—C281.322 (11)
N1—C111.471 (6)C27—H27A0.9300
N1—C121.487 (6)C25—H25A0.9300
N1—C151.491 (7)C19—C181.369 (8)
C35—C361.381 (7)C19—H19A0.9300
C35—H35A0.9300C18—H18A0.9300
C23—C241.395 (8)C37—C361.357 (8)
C23—C311.415 (7)C37—H37A0.9300
C23—C331.531 (6)C5—C61.351 (9)
C21—H21A0.9300C5—H5A0.9300
C33—H33A0.9800C15—C141.494 (8)
C2—C31.423 (7)C15—H15A0.9700
C9—C81.403 (7)C15—H15B0.9700
C9—C101.433 (7)C28—C291.408 (12)
C39—C381.389 (6)C28—H28A0.9300
C39—H39A0.9300C40—N41.147 (7)
C11—H11A0.9800C6—C71.402 (9)
C31—C301.388 (8)C6—H40A0.9300
C31—C321.442 (8)C7—H7A0.9300
C22—N21.142 (7)C13—C141.516 (9)
C26—C251.343 (9)C13—H13A0.9700
C26—C321.389 (9)C13—H13B0.9700
C26—H26A0.9300C43—H43A0.9700
C42—C411.482 (8)C43—H43B0.9700
C42—C431.497 (9)C29—H29A0.9300
C42—H42A0.9700C14—H14A0.9700
C42—H42B0.9700C14—H14B0.9700
C32—C271.409 (10)C36—H36A0.9300
C2—O1—H1A109.5C39—C38—C40120.6 (5)
C24—O2—H2A109.5C4—C3—C2120.1 (5)
C19—C20—C21121.3 (5)C4—C3—H3A119.9
C19—C20—C22120.1 (5)C2—C3—H3A119.9
C21—C20—C22118.6 (5)N1—C12—C13102.5 (4)
C35—C34—C39118.2 (4)N1—C12—H12A111.3
C35—C34—C33120.0 (4)C13—C12—H12A111.3
C39—C34—C33121.8 (4)N1—C12—H12B111.3
C2—C1—C9119.1 (4)C13—C12—H12B111.3
C2—C1—C11120.0 (4)H12A—C12—H12B109.2
C9—C1—C11120.9 (4)C7—C8—C9122.8 (5)
C33—N3—C44110.8 (4)C7—C8—H8A118.6
C33—N3—C41114.9 (4)C9—C8—H8A118.6
C44—N3—C41103.7 (4)C29—C30—C31121.4 (7)
C18—C17—C16121.3 (5)C29—C30—H30A119.3
C18—C17—H17A119.3C31—C30—H30A119.3
C16—C17—H17A119.3O2—C24—C23122.8 (4)
C21—C16—C17118.0 (5)O2—C24—C25117.6 (6)
C21—C16—C11121.9 (4)C23—C24—C25119.7 (6)
C17—C16—C11120.2 (4)N3—C44—C43105.3 (5)
C11—N1—C12115.7 (4)N3—C44—H44A110.7
C11—N1—C15112.6 (4)C43—C44—H44A110.7
C12—N1—C15103.7 (4)N3—C44—H44B110.7
C36—C35—C34121.5 (5)C43—C44—H44B110.7
C36—C35—H35A119.2H44A—C44—H44B108.8
C34—C35—H35A119.2C28—C27—C32123.7 (7)
C24—C23—C31120.5 (5)C28—C27—H27A118.1
C24—C23—C33119.8 (5)C32—C27—H27A118.1
C31—C23—C33119.7 (5)C26—C25—C24120.6 (6)
C16—C21—C20120.3 (5)C26—C25—H25A119.7
C16—C21—H21A119.9C24—C25—H25A119.7
C20—C21—H21A119.9C18—C19—C20118.4 (5)
N3—C33—C34113.3 (4)C18—C19—H19A120.8
N3—C33—C23109.1 (4)C20—C19—H19A120.8
C34—C33—C23111.5 (4)C19—C18—C17120.8 (5)
N3—C33—H33A107.6C19—C18—H18A119.6
C34—C33—H33A107.6C17—C18—H18A119.6
C23—C33—H33A107.6C36—C37—C38120.1 (5)
O1—C2—C1123.4 (4)C36—C37—H37A120.0
O1—C2—C3116.0 (5)C38—C37—H37A120.0
C1—C2—C3120.6 (5)C6—C5—C10123.2 (6)
C8—C9—C1124.0 (4)C6—C5—H5A118.4
C8—C9—C10116.3 (5)C10—C5—H5A118.4
C1—C9—C10119.7 (4)N1—C15—C14104.2 (5)
C34—C39—C38120.1 (4)N1—C15—H15A110.9
C34—C39—H39A119.9C14—C15—H15A110.9
C38—C39—H39A119.9N1—C15—H15B110.9
N1—C11—C16112.2 (4)C14—C15—H15B110.9
N1—C11—C1109.8 (4)H15A—C15—H15B108.9
C16—C11—C1111.4 (4)C27—C28—C29118.5 (7)
N1—C11—H11A107.7C27—C28—H28A120.8
C16—C11—H11A107.7C29—C28—H28A120.8
C1—C11—H11A107.7N4—C40—C38176.9 (6)
C30—C31—C23124.2 (5)C5—C6—C7118.6 (6)
C30—C31—C32117.9 (6)C5—C6—H40A120.7
C23—C31—C32117.8 (6)C7—C6—H40A120.7
N2—C22—C20179.4 (7)C8—C7—C6119.9 (6)
C25—C26—C32122.4 (5)C8—C7—H7A120.0
C25—C26—H26A118.8C6—C7—H7A120.0
C32—C26—H26A118.8C14—C13—C12105.1 (5)
C41—C42—C43106.4 (5)C14—C13—H13A110.7
C41—C42—H42A110.4C12—C13—H13A110.7
C43—C42—H42A110.4C14—C13—H13B110.7
C41—C42—H42B110.4C12—C13—H13B110.7
C43—C42—H42B110.4H13A—C13—H13B108.8
H42A—C42—H42B108.6C42—C43—C44105.4 (5)
C26—C32—C27123.8 (7)C42—C43—H43A110.7
C26—C32—C31118.8 (6)C44—C43—H43A110.7
C27—C32—C31117.4 (7)C42—C43—H43B110.7
N3—C41—C42104.8 (4)C44—C43—H43B110.7
N3—C41—H41A110.8H43A—C43—H43B108.8
C42—C41—H41A110.8C30—C29—C28121.1 (8)
N3—C41—H41B110.8C30—C29—H29A119.5
C42—C41—H41B110.8C28—C29—H29A119.5
H41A—C41—H41B108.9C15—C14—C13106.6 (5)
C5—C10—C4122.9 (5)C15—C14—H14A110.4
C5—C10—C9119.0 (5)C13—C14—H14A110.4
C4—C10—C9118.1 (5)C15—C14—H14B110.4
C3—C4—C10122.4 (5)C13—C14—H14B110.4
C3—C4—H4A118.8H14A—C14—H14B108.6
C10—C4—H4A118.8C37—C36—C35120.0 (5)
C37—C38—C39120.1 (5)C37—C36—H36A120.0
C37—C38—C40119.1 (5)C35—C36—H36A120.0
D—H···AD—HH···AD···AD—H···A
O1—H1A···N10.821.902.576 (5)139
O2—H2A···N30.821.932.593 (5)138
C39—H39A···O20.932.583.292 (6)133
Table 1

Hydrogen-bond geometry (Å, °)

D—H⋯AD—HH⋯ADAD—H⋯A
O1—H1A⋯N10.821.902.576 (5)139
O2—H2A⋯N30.821.932.593 (5)138
C39—H39A⋯O20.932.583.292 (6)133
  2 in total

1.  A short history of SHELX.

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

2.  Nonracemic Betti base as a new chiral auxiliary: application to total syntheses of enantiopure (2S,6R)-dihydropinidine and (2S,6R)-isosolenopsins.

Authors:  Xinyan Wang; Yanmei Dong; Jianwei Sun; Xuenong Xu; Rui Li; Yuefei Hu
Journal:  J Org Chem       Date:  2005-03-04       Impact factor: 4.354

  2 in total
  1 in total

1.  4-(6-Chloro-imidazo[1,2-b]pyridazin-3-yl)benzonitrile.

Authors:  Yiliang Zhao; Clarissa K L Ng
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2011-09-30
  1 in total

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