Add time:07/31/2019         Source:sciencedirect.com

The following twelve mercurous and mercuric organophosphomates, bis/diphosphonates and phenylarsonates have been isolated and structurally characterized by single crystal X-ray diffraction, 13C-and 31P NMR, infrared and Raman spectroscopic methods: Hg2(HO3PC6H5)2(1), Hg2(HO3P(C6H4)PO3H)(2), Hg2(HO3P(C6H4)2PO3H)(3), Hg2(HO3P(CH2)4PO3H)(4), Hg2(O3PC6H5)·H2O(5), (Hg2)2(O3P(CH2)2PO3)(6), (Hg2)2(O3P(CH2)3PO3)(7), Hg(O3PC6H5)·H2O(8), Hg(O3PCH2C6H5)·H2O(9), Hg(O3AsC6H5)·H2O(10), Hg3(O3AsC6H5)2(HO3AsC6H5)2(11) and (Hg2)Hg3(O3P(C6H4)PO3)2·2H2O(12). Compounds 1–7 are the first examples of mercurous phosphonates and di/bisphosphonates. They contain Hg2O6 units, which consist of Hg22+ cations with Hg-Hg bond of ~2.5 Å length. Phenylphosphonates 1 and 5 are layered compounds, whereas bis/diphosphonates 2, 3, 4, 6 and 7 have pillared-layered and three-dimensional structures. Compounds 8–11 are layered mercuric phosphonates and phenylarsonates. Compound 12 is a three-dimensional mixed-valent mercury phenylenebisphosphonate.

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