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. 2012 Jul 9;8:1037–1047. doi: 10.3762/bjoc.8.116

Table 2.

Crystallographic data for compounds 1, 2·CH3OH, 3·C2H5OH.

compound 1 2·CH3OH 3·C2H5OH

formula C14H11N3 C17H15N3O C19H20N4O
Mr 221.26 277.32 320.39
habit colourless tablet amber tablet colourless block
crystallite size (mm) 0.4 × 0.25 × 0.2 0.25 × 0.2 × 0.15 0.4 × 0.3 × 0.15
crystal system orthorhombic monoclinic orthorhombic
space group Pna21 P21/c Pbca

cell constants:

a [Å] 9.8842(4) 9.7060(3) 9.09323(15)
b [Å] 16.1917(6) 10.3442(3) 17.5182(3)
c [Å] 7.1501(3) 13.4884(4) 21.2257(4)
α [°] 90 90 90
β [°] 90 91.043(4) 90
γ [°] 90 90 90
V3) 1144.32 1354.04 3381.19
Z 4 4 8
Dx (g·cm−3) 1.284 1.360 1.259
μ (mm−1) 0.08 0.09 0.08
F(000) 464 584 1360
T (°C) −173 −173 −173
wavelength (Å) 0.71073 0.71073 0.71073
max 60 60 60
Refl. measured 34078 50772 125784
Refl. indep. 1791 3936 4949
Rint 0.029 0.028 0.034
parameters 158 100 240
wR(F2, all refl.) 0.084 0.111 0.104
R(F, >4σ(F)) 0.031 0.039 0.0406
S 1.01 1.03 1.04
max. Δ/ρ (e·Å−3) 0.25 0.36 0.36