Synthesis, Structure, and Haptotropic Interconversions of Tungsten Cycloheptatrienyl–Acetonitrile–Carbonyl Complexes

Autor:	I. V. Skabitskii, Sergey G. Sakharov, P. V. Rusina, A. A. Pasynskii, Yu. V. Torubaev
Rok vydání:	2019
Předmět:	Tris chemistry.chemical_compound chemistry Ligand General Chemical Engineering Hapticity chemistry.chemical_element General Chemistry Tungsten Ring (chemistry) Acetonitrile Medicinal chemistry Dissolution
Zdroj:	Russian Journal of Coordination Chemistry. 45:427-432
ISSN:	1608-3318 1070-3284
DOI:	10.1134/s1070328419050038
Popis:	Tungsten cycloheptatrienyl complexes (η7-C7H7)W(CO)2I (I), [(η3-C7H7)W(CO)2(CH3CN)3]PF6 (II), and [(η7-C7H7)W(CO)2(CH3CN)]PF6 (III) (CIF files CCDC nos. 1875096 (I), 1875097 (II), 1875098 (III)), characterized earlier only by spectroscopic methods, were prepared and studied by X-ray diffraction. The tris(acetonitrile) complex II can lose two acetonitrile ligands in both coordinating and non-coordinating solvents with the η3 → η7 change in the hapticity of the cycloheptatrienyl ring to be converted to III. The reverse ligand attachment process with the η7 → η3 change in the hapticity of the cycloheptatrienyl ring takes place upon the dissolution of monoacetonitrile complex III in acetonitrile. The electron-compensating η3 ↔ η7 change in the hapticity of the tropylium ligand is reversible.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::24730b67c0607b7d47e0fc619f50a6d7 https://doi.org/10.1134/s1070328419050038 Zobrazit plný text záznamu Full text from SpringerLink