Phase formation in the Re-Se-Br-MBr systems (M = Li, Na, K, Rb, Cs) |
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Authors: | S S Yarovoi Yu V Mironov S V Tkachev and V E Fedorov |
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Institution: | (1) Institute of Inorganic Chemistry, Siberian Division, Russian Academy of Sciences, pr. Akademika Lavrent’eva 3, Novosibirsk, 630090, Russia |
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Abstract: | Phase formation in the Re-Se-Br-MBr systems (M = K, Rb, Cs) was studied by NMR spectroscopy and powder X-ray diffraction.
The reactions taking place in alkali metal halide melts were found to give, among the series of cluster anions {Re6Se8 − n
Br
n
}Br6](4 − n)− (0 ≤ n≤ 4), polymeric complexes Re6Se8Br 2 and M2Re6Se8Br4 (M = Cs, Rb) and salts containing cluster anions Re6Se6Br8]2− and Re6Se7Br7]3− as the major products. The effect of the alkali metal cation on the product composition and ratio was established.
Original Russian Text ? S.S. Yarovoi, Yu.V. Mironov, S.V. Tkachev, V.E. Fyodorov, 2009, published in Zhurnal Neorganicheskoi
Khimii, 2009, Vol. 54, No. 2, pp. 344–349. |
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