Journal
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
Volume -, Issue 3-4, Pages 357-362Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejic.201800541
Keywords
Polyoxometalates; Keggin structure; Bismuth; Sandwich complexes; Self-assembly
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Funding
- JSPS KAKENHI [JP18H02058]
- Center for Functional Nano Oxide at Hiroshima University
- Indonesia Endowment Fund for Education (LPDP), Ministry of Finance, Republik Indonesia [PRJ-36/ LPDP.3/2017]
- Furukawa Foundation for the Promotion of Technology
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We report the first Peacock-Weakley type complexes composed of mono-lacunary Keggin-type phosphotungstate, [alpha-PW11O39](7-), and Bi3+. The self-assembly reaction between the Keggin-type phosphotungstate and Bi3+ in aqueous solution produced Peacock-Weakley type 2:1 ([(PW11O39)(2)Bi](11-), 1) and 1:1 ([PW11O39Bi](4-), 2) complexes depending on the mixing ratio of [alpha-PW11O39](7-) and Bi3+. Studies of both complexes in solution were conducted by different NMR techniques including P-31 and W-183 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 [alpha-PW11O39](7-) units.
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