ISSN:
0044-2313
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
{ReCl2(NO)2[Sb(C6H5)3]2}; Preparation, Crystal Structure, Infrared and 121Sb Mössbauer SpectrumThe title compound yields from treatment of ReCl3(NO)2 with excess Sb(C6H5)3 in a dichloromethane suspension forming green crystals. The structure of {ReCl2(NO)2[Sb(C6H5)3]2} was solved by X-ray methods; the complex crystallizes in the triclinic space group P1 with three formula units per unit cell (9522 undependent, observed reflexions, R = 5.0%). The lattice constants are a = 1251, b = 1414, c = 1671 pm, α = 66.2, β = 83.0, γ = 89.1°. The Rhenium atom is coordinated octahedrally by two NO groups, two Cl atoms, which are in cis-position to one another and two antimony atoms of the SbPh3 ligands, which are in trans positions. The NO and Cl ligands are statistically disordered in the equatorial plane. The I.R. spectrum as well as the 121Sb-Mössbauer spectrum, the latter obtained at 4.2 K, are recorded.
Notes:
Die Titelverbindung entsteht bei der Einwirkung von überschüssigem Triphenylantimon auf ReCl3(NO)2 in Dichlormethan-Suspension in Form grüner Kristalle. {ReCl2(NO)2[Sb(C6H5)3]2} kristallisiert nach Röntgenbeugungsmessungen triklin in der Raumgruppe P1 mit drei Formeleinheiten pro Elementarzelle (9 522 unabhängige, beobachtete Reflexe, R = 5,0%). Die Gitterabmessungen sind a = 1251, b = 1414, c = 1671 pm; α = 66,2, β = 83,0, γ = 89,1°. In dem Komplex ist das Re-Atom oktaedrisch von zwei cis-ständigen Nitrosylgruppen, zwei cis-ständigen Chlorliganden und von den beiden Antimonatomen der zueinander trans-ständigen Triphenyl-antimongruppen umgeben. Nitrosyl- und Chlorliganden sind statistisch fehlgeordnet. Das IR-Spektrum und das bei 4,2 K registrierte 121Sb-Mößbauer-Spektrum werden mitgeteilt.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19834980318
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