Report

Low-Temperature Synthesis of Zintl Compounds with a Single-Source Molecular Precursor

Science  04 Sep 1998:
Vol. 281, Issue 5382, pp. 1500-1501
DOI: 10.1126/science.281.5382.1500

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Abstract

Thermolysis of the heterobimetallic phosphinidene complex {[Sb(PCy)3]2- Li6·6HNMe2} (Cy = C6H11) at 303 to 313 kelvin gives Zintl compounds containing (Sb7)3− anions. The complex thus constitutes a stable molecular single-source precursor to Zintl compounds and provides a potential low-temperature route to photoactive alkali metal antimonates. The new chemical reaction involved, which is driven thermodynamically by the formation of P–P bonds, has implications in the low-temperature synthesis of other technologically important materials (such as gallium arsenide).

  • * To whom correspondence should be addressed. E-mail: dsw1000{at}cus.cam.ac.uk

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