Etude cristallochimique de derives du chrome(0)

Autor: Guy Le Borgne, Jean-Yves Saillard, Daniel Grandjean
Rok vydání: 1975
Předmět:
Zdroj: Journal of Organometallic Chemistry. 94:409-416
ISSN: 0022-328X
DOI: 10.1016/s0022-328x(00)86950-8
Popis: The crystal and molecular structure of methylbenzoatechromium dicarbonyl thiocarbonyl has been determined by a single-crystal X-ray study. The compound crystallizes with two molecules in a unit cell of symmetry P 1 , with the following parameters: triclinic system, a = 7.108(3), b = 10.340(4), c = 8.523(3) A; α = 89.75(6), β = 95.89(4), γ = 105.50(4)°; V = 601 A 3 ; d m = 1.57 ± 0.05, d c = 1.56. The structure has been refined to R and R ″ values of 0.030 and 0.038 respectively, for 1963 independent reflections. The main feature of the molecule is the C s symmetry of the Cr(CO) 2 CS group with a CrC(S) bond length of 1.792(2) A, shorter than the CrC(O) bond length, mean: 1.849(3) A.
Databáze: OpenAIRE