Construction of Ternary Iodine–Bromine–Chlorine Octahalides |
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| Authors: | Mohammed S Abdelbassit Prof Owen J Curnow |
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| Institution: | School of Physical and Chemical Sciences, University of Canterbury, Private Bag 4800, Christchurch, 8140 New Zealand |
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| Abstract: | A series of five ternary octanuclear iodine-bromine-chlorine interhalides, I2Br2Cl4]2? ( 1 ), I3BrCl4]2? ( 2 ), I4Br2Cl2]2? ( 3 ), I2Br4Cl2]2? ( 4 ) and I3Br3Cl2]2? ( 5 ), have been rationally constructed in two steps. Firstly, addition of a dihalogen (ICl or IBr) to the triaminocyclopropenium chloride salt C3(NEt2)3]Cl forms the corresponding trihalide salt with ICl2]? or BrICl]? anions, respectively. Secondly, addition of a half-equivalent of a second dihalogen, followed by crystallization at low temperature, gives the corresponding octahalide: addition of Br2 and IBr to ICl2]? gives 1 and 2 , respectively, whereas addition of I2, Br2 and IBr to BrICl]? gives 3 , 4 and 5 , respectively. The five octahalides were characterized by X-ray crystallography and far–IR spectroscopy. |
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| Keywords: | anions far-IR spectroscopy halides templating agents X-ray diffraction |
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