Abstract
In the presence of n-Bu4NBr acting as phase-transfer reagent, n-Bu4N+ salts of organophosphoryl polyoxotungstate derivatives [RP(O)]2Xn+W11O39 (8−n)− [R = PhCH2CH2P(O), X = P, Si; R = C6H11P(O); X = Ge, Ga] have been prepared and characterized by elemental analysis, i.r., 31P- and 183W-n.m.r. spectroscopy. According to the elemental analysis and spectroscopic data, the hybrid anions consist of an α-[XW11O39] framework on which are grafted two equivalent organophosphoryl groups through P—O—W bridges; these new species still retain the Keggin structure. The six-line 183W spectrum indicates that hybrid anions possess C s symmetry in MeCN.
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Sun, ZG., Zhu, ZM., You, WS. et al. Synthesis and characterization of organophosphoryl polyoxotungstates [RP(O)]2Xn+W11O39 (8−n)− (Xn+ = P5+, Si4+, Ge4+, Ga3+). Transition Metal Chemistry 28, 849–851 (2003). https://doi.org/10.1023/A:1026385320218
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DOI: https://doi.org/10.1023/A:1026385320218