Conclusions
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1.
Thermal decomposition of bis-(9-o- and 9-m-carboranyl)mercury containing B-Hgσ bonds occurs with the formation of metallic mercury and a carboranyl radical. In the main the latter disproportionate giving carborane and oligocarborane and recombine to an insignificant extent into B,B'-biscarboranyl.
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2.
Thermal decomposition of 9-o and 9-m-carboranylmercury chlorides containing B-Hg σ-bonds occurs homolytically with the formation of metallic mercury and 9-chloro-o- and m-carboranes respectively.
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3.
A simple method has been proposed for making symmetrical the 9-o-, 9-m-, and 2-p-carboranylmercury chlorides (or trifluoroacetates) into the corresponding biscarboranylmercury derivatives under the action of an alkaline solution of sodium stannite.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 1158–1161, May, 1983.
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Zakharkin, L.I., Pisareva, I.V. Thermal decomposition of bis-(9-o- and 9-m-carboranyl)mercury. Russ Chem Bull 32, 1046–1048 (1983). https://doi.org/10.1007/BF00956166
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DOI: https://doi.org/10.1007/BF00956166