STRUCTURES OF TRIMETHYLOXOSULFONIUM SALTS .7. THE DICHROMATE - [(CH3)3SO]2CR2O7

Authors
JANNIN M PUGET R DEBRAUER C PERRET R
Citation
M. Jannin et al., STRUCTURES OF TRIMETHYLOXOSULFONIUM SALTS .7. THE DICHROMATE - [(CH3)3SO]2CR2O7, Acta crystallographica. Section C, Crystal structure communications, 49, 1993, pp. 749-751
Citations number
8
Categorie Soggetti
Crystallography
Journal title
Acta crystallographica. Section C, Crystal structure communications → ACNP
ISSN journal
01082701
Volume
49
Year of publication
1993
Part
4
Pages
749 - 751
Database
ISI
SICI code
0108-2701(1993)49:<749:SOTS.T>2.0.ZU;2-0
Abstract
Trimethyloxosulfonium dichromate, C3H9OS+.Cr2O7-, M(r) = 402.32, monoc linic, P2(1), a = 8.917 (2), b = 10.319 (2), c = 8.418 (1) angstrom, b eta = 102.30 (5)degrees , V = 756.8 (6) angstrom3, Z = 2, D(m) = 175 ( 3), D(x) = 1.765 Mg m-3, lambda(Mo Kalpha) = 0.71073 angstrom, mu = 1. 698 mm-1, F(000) = 412, T = 293 K, final R = 0.038, wR = 0.038 for 257 1 independent observed reflections. As usual, the dichromate ion is fo rmed by two non-regular CrO4 tetrahedra, linked by the O(1) atom. The two pyramidal thiocations, (CH3)3SO+, with approximate 3m symmetry, ha ve the same geometrical features.