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A Sandwich Complex of Bismuth Cation and Mono‐Lacunary α‐Keggin‐Type Phosphotungstate: Preparation and Structural Characterisation
Author(s) -
Wihadi Muh Nur Khoiru,
Hayashi Akio,
Ichihashi Katsuya,
Ota Hiromi,
Nishihara Sadafumi,
Inoue Katsuya,
Tsunoji Nao,
Sano Tsuneji,
Sadakane Masahiro
Publication year - 2019
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.201800541
Subject(s) - lacunary function , chemistry , polyoxometalate , bismuth , crystallography , keggin structure , salt (chemistry) , aqueous solution , inorganic chemistry , ion , catalysis , organic chemistry , mathematics , pure mathematics
We report the first Peacock–Weakley type complexes composed of mono‐lacunary Keggin‐type phosphotungstate, [α‐PW 11 O 39 ] 7– , and Bi 3+ . The self‐assembly reaction between the Keggin‐type phosphotungstate and Bi 3+ in aqueous solution produced Peacock–Weakley type 2:1 ([(PW 11 O 39 ) 2 Bi] 11– , 1 ) and 1:1 ([PW 11 O 39 Bi] 4– , 2 ) complexes depending on the mixing ratio of [α‐PW 11 O 39 ] 7– and Bi 3+ . Studies of both complexes in solution were conducted by different NMR techniques including 31 P and 183 W analyses. Complex 1 was successfully isolated as both tetramethyl ammonium ( 1a ) and potassium ( 1b ) salt, and characterized by single‐crystal X‐ray diffraction, IR spectroscopy and elemental analysis. The sandwich structure of 1a and 1b was determined to be constructed by eight Bi–O bonds with two [α‐PW 11 O 39 ] 7– units.