(HgBr2)3(As4S4)2: An Adduct of HgBr2 Molecules and Undistorted As4S4 Cages |
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| Authors: | Michael F Bräu Arno Pfitzner Prof Dr |
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| Institution: | 1. Regensburg, Universit?t, Institut für Anorganische Chemie;2. Regensburg, Universit?t, Institut für Anorganische ChemieUniversit?t Regensburg, Institut für Anorganische Chemie, Universit?tsstra?e 31, D‐93040 Regensburg /Germany, Fax: (+49)941/943 4983 |
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| Abstract: | (HgBr2)3(As4S4)2 is obtained by high temperature reaction of stoichiometric amounts of HgBr2 and As4S4. It crystallizes in the monoclinic space group P21/c with the lattice constants a = 9.593(5) Å, b = 11.395(5) Å, c = 13.402(5) Å, β = 107.27(3)°, V = 1399(1) Å3, and Z = 2. The crystal structure consists of molecular units built from two undistorted As4S4 cages which are coordinated weakly by three almost linear HgBr2 units. Raman spectra clearly indicate minor bonding interactions between HgBr2 and As4S4. |
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| Keywords: | Mercury halides Molecular adducts Arsenic sulfides Crystal structures Raman spectroscopy |
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