Issue 12, 1998

Self-assembling iron and manganese metal–germanium–selenide frameworks: [NMe4]2MGe4Se10, where M = Fe or Mn

Abstract

The hydrothermal synthesis mixture Ge–Se–(TMA)OH–H2O (TMA+ = NMe4+) yielded crystals of the material (TMA)4Ge4Se10. A single-crystal X-ray diffraction structure showed the presence of adamantanoid Ge4Se104– clusters and TMA+ cations. The TMA+ template-mediated aqueous synthesis of (TMA)2MGe4Se10 (M = Mn or Fe) from Ge4Se104– and M2+ building-blocks is described. Rietveld powder X-ray diffraction full profile structure refinements of (TMA)2MGe4Se10 established that these novel metal–germanium–selenide frameworks are isostructural with the analogous metal–germanium–sulfides, (TMA)2MGe4S10. The selenide materials have a zinc blende-type of open-framework structure. Charge-balance of the anionic open-framework [MGe4Se10]2– is maintained by two TMA+ template cations that reside within the cavity spaces. Trends in the tetragonal unit cell dimensions and metal–chalcogenide bond lengths of (TMA)2MGe4X10 (X = S or Se) are those expected based upon increases in metal and chalcogenide radii on passing from S–II to Se–II and FeII to MnII.

Article information

Article type
Paper

J. Chem. Soc., Dalton Trans., 1998, 2023-2028

Self-assembling iron and manganese metal–germanium–selenide frameworks: [NMe4]2MGe4Se10, where M = Fe or Mn

H. Ahari, A. Garcia, S. Kirkby, G. A. Ozin, D. Young and A. J. Lough, J. Chem. Soc., Dalton Trans., 1998, 2023 DOI: 10.1039/A800449H

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