0365917 - FZÚ 2012 RIV DK eng J - Článek v odborném periodiku
Rivera, A. - Maldonado, M. - Ríos-Motta, J. - Fejfarová, Karla - Dušek, Michal
2,2´-(1,3-Diazinane-1,3-diyl)diacetonitrile: a second monoclinic polymorph.
Acta Crystallographica Section E-Structure Reports Online. Roč. 67, Part 10 (2011), o2734/sup6. ISSN 1600-5368. E-ISSN 2056-9890
Grant ostatní: AV ČR(CZ) AP0701
Program: Akademická prémie - Praemium Academiae
Výzkumný záměr: CEZ:AV0Z10100521
Klíčová slova: crystal structure * X-ray diffraction
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 0.347, rok: 2011
DOI: https://doi.org/10.1107/S1600536811038013

A new monoclinic polymorph of the title compound, C8H12N4, in the space group P21/n is reported. The previously known form was also monoclinic, P21/c, but the unit cell parameters and crystal packing were different [Shoja & Saba (1993). Acta Cryst. C49, 354–355]. The hexahydropyrimidine ring of the title compound adopts a chair conformation with a diequatorial substitution and with the CH2-CN groups oriented nearly parallel and in the same direction [NC-CH2...CH2-CN pseudo torsion angle = 6.27 (18)°]. In the crystal, intermolecular C-H... N hydrogen bonds connects the molecules into a chain along the b axis.

Trvalý link: http://hdl.handle.net/11104/0201048