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Title

Synthesis and structure of mixed carboxylate-aminopyridinate and -amidinate complexes of dimolybdenum and ditungsten

AuthorsMendoza, Irene; Curado, Natalia ; Carrasco, Mario ; Álvarez, Eleuterio ; Peloso, Riccardo ; Rodríguez, Amor ; Carmona, Ernesto
KeywordsMolybdenum
Tungsten
Carboxylate
Aminopyridinate
Amidinate
Quadruple bond
Issue Date2015
PublisherElsevier
CitationInorganica Chimica Acta, 424:120-128 (2015)
AbstractWe describe in this paper the synthesis and structural characterization of dimolybdenum and ditungsten complexes with M‚‚ M bonds derived from the metal–metal bonded tetracarboxylates [M2(O2CR)4] and incorporating one or two bulky aminopyridinate or amidinate ligands. The new compounds were isolated in good yields from reactions of the [Mo2(O2CR)4] (R=CF3, Me) and [W2(O2CCF3)4] metal precursors with the lithium salts of several aminopyridinate and amidinate ligands. They have formulations [M2(( N N ))(O2CR)3] or [M2((N N))2(O2CR)2] ((N N) = bridging aminopyridinate or amidinate ligand) and were identified by microanalysis and common spectroscopic techniques. Nine of the newly reported complexes were additionally characterized by X-ray crystallography
Publisher version (URL)http://dx.doi.org/10.1016/j.ica.2014.07.055
URIhttp://hdl.handle.net/10261/108505
DOI10.1016/j.ica.2014.07.055
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