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Synthesis, Characterization, and Crystal Structure of Mononuclear and Dinuclear Dioxomolybdenum(VI) Complexes with Tridentate Schiff‐base Ligands. Part 2
Author(s) -
Cindrić Marina,
Strukan Neven,
Vrdoljak Višnja,
Kamenar Boris
Publication year - 2004
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200300391
Subject(s) - schiff base , chemistry , deprotonation , salicylaldehyde , ligand (biochemistry) , imidazole , octahedron , crystal structure , medicinal chemistry , molybdenum , methanol , stereochemistry , polymer chemistry , crystallography , inorganic chemistry , organic chemistry , ion , biochemistry , receptor
Mononuclear [MoO 2 LD], and dinuclear [MoO 2 L] 2 or [MoO 2 L] 2 · D dixomolybdenum(VI) complexes have been prepared by the reaction of tridentate Schiff‐base ligands L with [MoO 2 (acac) 2 ]. The Schiff‐base ligands have been synthesized from salicylaldehyde ( 1 , 1a , 1c , 1d ), 2‐hydroxy‐1‐naphthaldehyde ( 2 , 2c ) and 2‐hydroxy‐3‐methoxybenzaldehyde ( 3a , 3b , 3c , 3d , 3e ) with 2‐amino‐ p ‐cresol. All prepared complexes consist of cis ‐MoO 2 2+ core coordinated by Schiff‐base ligand through two deprotonated hydroxyl groups and one imino nitrogen atom. The usual octahedral coordination around the molybdenum atoms is completed by the neutral ligand D (methanol, ethanol, dimethyl sulfoxide, imidazole or 4, 4′‐bipyridine). All compounds were characterized by elemental analyses, IR spectroscopy and some of them by X‐ray crystallography ( 1a , 2c , 3a , 3b , 3c and 3e ).