Journal
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS
Volume -, Issue 4, Pages 479-486Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/a908552a
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The low-temperature reactions of aliphatic primary phosphines and phosphides with E(NMe2)(3) (E=As, Sb) give cyclic anions of the type [(RP)(n)E](-). At higher temperatures Zintl compounds containing E-7(3-) anions are generated. In contrast, related reactions using aryl phosphines lead to the direct formation of Zintl compounds even at low temperature. The reactions of aliphatic and aryl arsines follow a similar pattern to that of the corresponding phosphines. The syntheses and X-ray structures of several complexes containing [(RP)(n)E](-) (n=3 or 4) and E-7(3-) anions are reported.
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