Reactivity of tungsten(V) mononuclear complexes towards Li(TCNQ) and TCNQ. Comparison of the crystal structures of [W(S2CNMe2)4][TCNQ] and [Mo(S2CNMe2)4][TCNQ]·MeCN (TCNQ = 7,7,8,8-tetracyanoquinodimethane)‡

Autor:	Annie Leblanc, P. Molinie, Sylvie Le Stang, Eric Faulques, Jean Sala Pala, Ricardo Baggio, Yves Le Mest, M. T. Garland, Françoise Conan, Loïc Toupet
Rok vydání:	1998
Předmět:	chemistry.chemical_compound Crystallography chemistry Molybdenum Inorganic chemistry Solid-state chemistry.chemical_element Reactivity (chemistry) General Chemistry Crystal structure Tungsten Acetonitrile Tetracyanoquinodimethane
Zdroj:	Scopus-Elsevier
ISSN:	1364-5447 0300-9246
DOI:	10.1039/a707555c
Popis:	The reaction of tungsten(V) complexes [W(S2CNR2)4]I (R = Me or Et) with Li(TCNQ) in a dimethylformamide–water mixture at room temperature afforded the new derivatives [W(S2CNR2)4][TCNQ] 1a and 1b (TCNQ = 7,7,8,8-tetracyanoquinodimethane). These compounds reacted further with TCNQ in acetonitrile to produce [W(S2CNR2)4][TCNQ]2 in which the TCNQ moieties are in a mixed-valence state. The physical properties of these new derivatives in solution and in the solid state are presented. The structures of 1a and of its molybdenum analogue [Mo(S2CNR2)4][TCNQ]·MeCN 2a have been studied by X-ray diffraction analyses: in 1a the TCNQ moieties form alternating stacks along the c axis according to a quite unusual bond–bond overlap; in 2a the TCNQ˙– moieties are dimerized and exhibit the usual slipped conformation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f9dfe05c97dbc018e005a514bdeb13e https://doi.org/10.1039/a707555c Zobrazit plný text záznamu