Room‐Temperature Synthesis of Bismuth Clusters in Ionic Liquids and Crystal Growth of Bi 5 (AlCl 4 ) 3 | Zendy

Ahmed Ejaz | Zendy; Köhler Daniel | Zendy; Ruck Michael | Zendy

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Room‐Temperature Synthesis of Bismuth Clusters in Ionic Liquids and Crystal Growth of Bi 5 (AlCl 4 ) 3

Author(s) -

Ahmed Ejaz,

Köhler Daniel,

Ruck Michael

Publication year - 2009

Publication title -

zeitschrift für anorganische und allgemeine chemie

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.354

H-Index - 66

eISSN - 1521-3749

pISSN - 0044-2313

DOI - 10.1002/zaac.200800302

Subject(s) - bismuth , ionic liquid , raman spectroscopy , oxidizing agent , chemistry , inorganic chemistry , ionic bonding , crystallography , ion , organic chemistry , catalysis , physics , optics

The viability of Lewis‐acid ionic liquids for the synthesis of low‐valent bismuth compounds is demonstrated. At room temperature, elemental bismuth and bismuth(III) cations synproportionate in the ionic liquid [BMIM]Cl/AlCl 3 ([BMIM] + : 1‐ n ‐butyl‐3‐methylimidazolium) within minutes. The existence of bismuth polycations in the dark colored solution was proven by Raman spectroscopy. Dark‐red crystals of Bi 5 (AlCl 4 ) 3 were isolated from the ionic liquid and characterized by Raman spectroscopy and X‐ray crystallography (rhombohedral space‐group $R{\bar 3}c$ , a = 1187.1(2) pm, c = 3012.0(3) pm). The method allows the synthesis of bismuth cluster compounds under milder conditions than in high‐temperature melts and more conveniently and environmental friendly than in liquid SO 2 with strongly oxidizing, toxic agents like SbF 5 or AsF 5 .

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