Stabilization of Sn2+ in K10Sn3(P 2Se6)4 and Cs2SnP2Se 6 derived from a basic flux

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K10Sn3(P2Se6)4 and Cs2SnP2Se6 stabilize the lower oxidation state of Sn2+. K10Sn3(P2Se 6)4 crystallizes in the trigonal space group R3̄ with a = b = 24.1184(7) Å and c = 7.6482(2) Å at 100 K. Cs 2SnP2Se6 crystallizes in P21/c with a = 10.1160(4) Å, b = 12.7867(5) Å, c = 11.0828(5) Å, and β = 94.463(3)° at 100(2) K. Electronic absorption spectra revealed band gaps of 1.82 eV for K10Sn3(P2Se 6)4 and 2.06 eV for Cs2SnP2Se 6. Solid-state magic-angle-spinning 31P NMR, UV-vis, Raman, and IR spectroscopy and thermal analysis studies of the compounds are reported.

Original languageEnglish (US)
Pages (from-to)412-414
Number of pages3
JournalInorganic chemistry
Issue number2
StatePublished - Jan 17 2011

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry


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