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Mono‐oxo‐bis‐dithioveratrol‐molybdate – in Solution a Model for Arsenite Oxidase and in the Solid State a Coordination Polymer with Unprecedented Binding Motifs
Author(s) -
Döring Alexander,
Fischer Christian,
Schulzke Carola
Publication year - 2013
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.201300076
Subject(s) - moiety , molybdate , chemistry , sodium molybdate , molybdenum , ligand (biochemistry) , stereochemistry , ether , triphenylphosphine , solid state , polymer chemistry , inorganic chemistry , organic chemistry , catalysis , biochemistry , receptor
Mono‐oxo‐bis‐dithioveratrol‐molybdate was synthesized, structurally characterized, and investigated with respect to its oxo‐transfer activity. The latter was compared with the activity of the analogous tungsten complex. The title complex is a structural model for molybdopterin bearing arsenite oxidase and both complexes catalyze oxo‐transfer reactions successfully to 100 % conversion. With the dithioveratrol ligand the oxidation of triphenylphosphine proved to be faster for the tungsten complex, which is untypical. The solid‐state structure of the molybdenum complex exhibits an unexpected and very unusual polymeric structural motif consisting of the complex anion mono‐oxo‐bis‐dithioveratrol‐molybdate, sodium cations, and methanol. Infinite double‐decker strands are formed with sodium bridges between the ether functions of two ligands in one strand and the Mo=O moiety of the second strand.