Synthetic and structural investigations of mercurous and mercuric organophosphonates and phenylarsonates

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• 作者：Nitin Balkrushna Padalwar ; Kanamaluru Vidyasagar
• 关键词：Mercurous phosphonates ; Mercuric phosphonates ; Mercuric phenylarsonates ; Synthesis ; Crystal structure ; Raman spectroscopy
• 刊名：Journal of Solid State Chemistry
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：243
• 期：Complete
• 页码：83-94
• 全文大小：3496 K

文摘

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.