Die Kristall- und Molekülstruktur des 1,3-Diphenyl-imidazol-perchlorats
- 1 February 1975
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Kristallographie - Crystalline Materials
- Vol. 142 (3-4) , 177-185
- https://doi.org/10.1524/zkri.1975.142.3-4.177
Abstract
The crystal structure of 1.3-diphenyl-imidazol-perchlorate was solved by x-ray analysis. The crystals are monoclinic with a = 18.000 ± 0.008,b = 10.300 ± 0.005, c = 8.575 ± 0.003 Å, β = 112.82 ± 0.03°, cell volume 1465 ± 2 Å3, and four molecules per unit cell. The intensity distribution favoured the space group C 2h 6–C2/c with eightfold general positions, thus implying a twofold axis as symmetry element of each molecule. The refinement of the three-dimensional diffractometer data led to a final R value of 0.063 when accounting for extinction effects.Keywords
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