Crystal structures of two 4-bromopyrazole derivatives

Authors
Foces-Foces, C Llamas-Saiz, AL Elguero, J
Citation
C. Foces-foces et al., Crystal structures of two 4-bromopyrazole derivatives, Z KRISTALL, 214(4), 1999, pp. 237-241
Citations number
17
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
ZEITSCHRIFT FUR KRISTALLOGRAPHIE
ISSN journal
00442968 → ACNP
Volume
214
Issue
4
Year of publication
1999
Pages
237 - 241
Database
ISI
SICI code
0044-2968(1999)214:4<237:CSOT4D>2.0.ZU;2-X
Abstract
The crystal structures of 4-bromopyrazole and 3,5-dimethyl-4-bromopyrazole have been determined. The molecules are linked by N-H ... N intermolecular hydrogen bonds giving rise to trimers and catemers, which are in turn conne cted by weak C-H ... Br contacts to form a three-dimensional network.