Premium
Mixed‐Metal Dawson Sandwich Complexes: Synthesis, Spectroscopic Characterization and Electrochemical Behaviour of Na 16 [M II Co 3 (H 2 O) 2 (P 2 W 15 O 56 ) 2 ] (M = Mn, Co, Ni, Zn and Cd)
Author(s) -
Ruhlmann Laurent,
CostaCoquelard Claire,
Canny Jacqueline,
Thouvenot René
Publication year - 2007
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200600942
Subject(s) - chemistry , lacunary function , electrochemistry , metal , aqueous solution , spectroscopy , nuclear magnetic resonance spectroscopy , nuclear chemistry , analytical chemistry (journal) , crystallography , stereochemistry , electrode , organic chemistry , physics , mathematics , quantum mechanics , pure mathematics
Mixed‐metal Dawson sandwich complexes [MCo 3 (H 2 O) 2 (P 2 W 15 O 56 ) 2 ] 16– (represented as {MCo 3 P 4 W 30 }) have been synthesized by the reaction of M 2+ (where M = Mn, Co, Ni, Zn and Cd) with the “lacunary” sandwich complex αβ‐[NaCo 3 (H 2 O) 2 (P 2 W 15 O 56 ) 2 ] 17– (represented as {NaCo 3 P 4 W 30 }): [NaCo 3 (H 2 O) 2 (P 2 W 15 O 56 ) 2 ] 17– + M 2+ → [MCo 3 (H 2 O) 2 (P 2 W 15 O 56 ) 2 ] 16– + Na + . The {MCo 3 P 4 W 30 } species were characterized by IR spectroscopy, elemental analysis and 31 P solution NMR spectroscopy. The electrochemical behaviour of these mixed‐metal sandwich complexes was investigated in aqueous solution and compared with that of ββ‐[Co 4 (H 2 O) 2 (P 2 W 15 O 56 ) 2 ] 16– (represented as ββ‐{Co 4 P 4 W 30 }) and {NaCo 3 P 4 W 30 }. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)