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2005
Tin
I 4800
32- 028
Synthesis, Structure, and Thermal Properties of Soluble Hydrazinium Germanium(IV) and Tin(IV) Selenide Salts. — Single crystals of the compounds
(N2H5)4Ge2Se6 (I) and (N2H4)3(N2H5)4Sn 2Se 6 (II) are obtained from the reactions of
GeSe2 or SnSe2 and Se in hydrazine under N2 atmosphere. (I) crystallizes in the tetragonal space group I41cd with Z = 8 and (II) in the triclinic space group P1 with Z = 1.
Both structures consist of anionic dimers of edge-sharing metal selenide tetrahedra,
M2 S e46 - (M: Ge, Sn), separated by hydrazinium cations and, for (II), additional neutral
hydrazine molecules. Substantial hydrogen bonding exists between the hydrazine/hydrazinium molecules as well as between the hydrazinium cations and the selenide anions. The metal chalcogenide salts are highly soluble in hydrazine, as well as in a variety of amines and DMSO, and therefore may be useful precursors for the solution deposition of the corresponding metal chalcogenide films. — (MITZI, D. B.; Inorg.
Chem. 44 (2005) 10, 3755-3761; IBM Res. Div., Yorktown Heights, NY 10598, USA;
Eng.) — Schramke
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