Crystal and supramolecular structures of dioxomolybdenum(VI) and dioxotungsten(VI) complexes of dihydroxybenzoic acids
authors Monteiro, B; Cunha-Silva, L; Gago, S; Klinowski, J; Paz, FAA; Rocha, J; Goncalves, IS; Pillinger, M
nationality International
journal POLYHEDRON
author keywords Molybdenum; Tungsten; O ligands; X-ray diffraction; Hydrogen bonds; Supramolecular chemistry
keywords OXYGEN-ATOM TRANSFER; ACTIVE-SITE MODELS; X-RAY-DIFFRACTION; 2,3-DIHYDROXYBENZOIC ACID; MOLYBDENUM(VI) COMPLEXES; INTRACELLULAR SURVIVAL; PROTOCATECHUIC ACID; BRUCELLA-ABORTUS; OXIDATIVE STRESS; FUNCTIONAL-MODEL
abstract The tetramethylammonium salts (NMe(4))(2)[MO(2)(2,3-Hdhb)(2)]center dot 2H(2)O and (NMe(4))(2)[MO(2)(3,4-Hdhb)(2)]center dot 6H(2)O (M = Mo, W; Hdhb = monoprotonated form of 2,3- or 3,4-dihydroxybenzoic acid, 2,3-H(3)dhb or 3,4-H(3)dhb) were prepared and their crystal structures determined. The structure of [Mg(H(2)O)(6)](NMe(4))(4)-[MoO(2)(3,4-dhb)(3,4-Hdhb)](2)center dot 13H(2)O, obtained by the recrystallization of (NMe(4))(2)[MoO(2)(3,4-Hdhb)(2)] in the presence of magnesium ions, is also reported. The supramolecular interactions of the five structures are discussed in detail concerning the hydrogen bonding patterns involving complexes and water molecules of crystallization. (C) 2009 Elsevier Ltd. All rights reserved.
publisher PERGAMON-ELSEVIER SCIENCE LTD
issn 0277-5387
year published 2010
volume 29
issue 2
beginning page 719
ending page 730
digital object identifier (doi) 10.1016/j.poly.2009.10.015
web of science category Chemistry, Inorganic & Nuclear; Crystallography
subject category Chemistry; Crystallography
unique article identifier WOS:000275020700009
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