DIPYRIDINIOMETHANE CIS-DICHLOROTETRAFLUOROOSMATE(IV)

Authors
BRUHN C PREETZ W
Citation
C. Bruhn et W. Preetz, DIPYRIDINIOMETHANE CIS-DICHLOROTETRAFLUOROOSMATE(IV), Acta crystallographica. Section C, Crystal structure communications, 50, 1994, pp. 1555-1557
Citations number
16
Categorie Soggetti
Crystallography
Journal title
Acta crystallographica. Section C, Crystal structure communications → ACNP
ISSN journal
01082701
Volume
50
Year of publication
1994
Part
10
Pages
1555 - 1557
Database
ISI
SICI code
0108-2701(1994)50:<1555:DC>2.0.ZU;2-T
Abstract
The structure of dipyridiniomethane cis-dichlorotetrafluoroosmate(IV) {or N,N-methylenedipyridinium dichlorotetrafluoroosmate(IV), cis-[(C5H 5N)2CH2]-[OsF4Cl2]}, has been determined by single-crystal X-ray diffr action at room temperature. The complex anions are completely ordered in the lattice. As a result of the trans influence in the two asymmetr ic axes Cl-Os-F, the Os-F distances of 1.941 (4) and 1.953 (5) angstro m are slightly lengthened compared to those of the symmetric F-Os-F ax is of 1.931 (5) and 1.934 (4) angstrom. Correspondingly, the Os-Cl dis tances of 2.324 (2) and 2.335 (2) angstrom are shortened in comparison with those of 2.364 angstrom in the octahedral complex anion of K2[Os Cl6].