Chemistry of [PW11NbO40]4−: Structural rearrangement and metal coordination
| Autor: | N. B. Kompankov, Albina R. Karimova, Ekaterina P. Bushmeleva, Rishat R. Shiriyazdanov, Maxim N. Sokolov, Pavel A. Abramov |
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| Rok vydání: | 2018 |
| Předmět: |
010405 organic chemistry
Chemistry Diffusion Cationic polymerization 010402 general chemistry 01 natural sciences 0104 chemical sciences law.invention Ion Inorganic Chemistry Metal chemistry.chemical_compound Crystallography law visual_art Materials Chemistry visual_art.visual_art_medium Physical and Theoretical Chemistry Diethyl ether Crystallization Powder diffraction Natural bond orbital |
| Zdroj: | Inorganic Chemistry Communications. 98:180-183 |
| ISSN: | 1387-7003 |
| DOI: | 10.1016/j.inoche.2018.10.026 |
| Popis: | Treatment of Cs4[PW11NbO40]·12H2O with boiling water results in slow degradation of the [PW11NbO40]4− Keggin anion into the trilacunary [A-PW9O34]9− following by aggregation of the latter around three {M O} (M Nb, W) fragments, producing [(A-PW9O34)2(MO)3]8− Herve-type anion. The product was isolated as Cs8[(PW9O34)2(WO)(NbO)2]·17.5H2O (1) and characterized with XRD, XRPD, IR and 31P MAS NMR. Diffusion of diethyl ether into the solution of (TBA)4[PW11NbO40] and Pb(NO3)2 in N,N-dimethylformamide (DMF) leads to the crystallization of [Pb2(μ2-DMF)3(DMF)8][PW11NbO40]·DMF (2) with polymeric nature, where the {Pb2} cationic dimers and [PW11NbO40]4− anions form infinite linear chains via Pb O M coordination. Complex (2) was characterized with XRD, IR and 31P MAS NMR. |
| Databáze: | OpenAIRE |
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