| Publication Type |
Journal Article |
| Title |
Formation Mechanism of a Nano-Ring of Bismuth Cations and Mono-Lacunary Keggin-Type Phosphomolybdate |
| Authors |
Ines C B Martins Dominik Al-Sabbagh Ursula Bentrup Julien Marquardt Thomas Schmid Ernesto Scoppola Werner Kraus Tomasz M. Stawski Ana Guilherme Buzanich V Yusenko Steffen Weidner Franziska Emmerling |
| Groups |
BioMol |
| Journal |
CHEMISTRY-A EUROPEAN JOURNAL |
| Year |
2022 |
| Month |
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|
| Volume |
28 |
| Number |
27 |
| Pages |
|
| Abstract |
A new hetero-bimetallic polyoxometalate (POM) nano-ring was synthesized in a one-pot procedure. The structure consists of tetrameric units containing four bismuth-substituted monolacunary Keggin anions including distorted [BiO8] cubes. The nano-ring is formed via self-assembly from metal precursors in aqueous acidic medium. The compound (NH4)(16)[(BiPMo11O39)(4)] . 22 H2O; (P4Bi4Mo44) was characterized by single-crystal X-ray diffraction, extended X-ray absorption fine structure spectroscopy (EXAFS), Raman spectroscopy, matrix-assisted laser desorption/ionisation-time of flight mass spectrometry (MALDI-TOF), and thermogravimetry/differential scanning calorimetry mass spectrometry (TG-DSC-MS). The formation of the nano-ring in solution was studied by time-resolved in situ small- and wide-angle X-ray scattering (SAXS/WAXS) and in situ EXAFS measurements at the Mo-K and the Bi-L-3 edge indicating a two-step process consisting of condensation of Mo-anions and formation of Bi-Mo-units followed by a rapid self-assembly to yield the final tetrameric ring structure. |
| DOI |
http://dx.doi.org/10.1002/chem.202200079 |
| ISBN |
|
| Publisher |
|
| Book Title |
|
| ISSN |
0947-6539 |
| EISSN |
1521-3765 |
| Conference Name |
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| Bibtex ID |
WOS:000776742200001 |
| Observations |
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