N-(2-PYRIDINIUM)UREA PERRHENATE

Citation
V. Velikova et al., N-(2-PYRIDINIUM)UREA PERRHENATE, Acta crystallographica. Section C, Crystal structure communications, 53, 1997, pp. 1230-1232
Citations number
11
Categorie Soggetti
Crystallography
ISSN journal
01082701
Volume
53
Year of publication
1997
Part
9
Pages
1230 - 1232
Database
ISI
SICI code
0108-2701(1997)53:<1230:NP>2.0.ZU;2-J
Abstract
The N-(2-pyridinium)urea cation of the title compound, C6H8N3O+.ReO4-, is planar to within 0.085(9) Angstrom and adopts an s-cis-s-cis confo rmation with respect to the imino C-N bonds. The structure consists of columns of centrosymmetric dimeric plane-to-plane stacked cations and hydrogen-bonded anions. The distance between the anti-parallel carbon yl groups in the dimer is 3.16(5) Angstrom. An extensive network of hy drogen bonds stabilizes the ordering of the ions within the columns, w hich are held together by weaker hydrogen bonds and van der Waals inte ractions.