Inorganic Chemistry, Vol.45, No.25, 10147-10154, 2006
New heterobimetallic and polymeric selenocarboxylates derived from [M(SeC{O}Ph)4](-) (M) = Ga and In) as molecular precursors for ternary selenides
(Et3NH)[In(SeC{O}Ph)(4)]center dot H2O (1) along with heterobimetallic and polymeric metal selenocarboxylates, namely [NaGa( SeC{O}Ph)(4)](2), [K(MeCN)(2)Ga(SeC{O}Ph)(4)] (3), [NaIn(SeC{O}Ph)(4)] (4), [K(MeCN)(2)In(SeC{O}Ph)(4)] (5), [(Ph3P)(2)CuIn( SeC{O}Ph)(4)]center dot CH2Cl2 (6), and [(Ph3P)(2)AgIn(SeC{O}Ph)(4)]center dot CH2Cl2 (7), have been synthesized by incorporating either alkali metal ions (Na+ and K+) or group 11 metal ions (Cu(I) and Ag(I)) into the [M(SeC{O}Ph)(4)](-) anion. Crystal structures determined by X-ray crystallography indicate that 3 and 5 have one- dimensional coordination polymeric structures while 6 and 7 have an M(mu-Se)(2)In (M = Cu, Ag) core. The thermal decomposition of these compounds except 4 lead to the formation of the corresponding metal selenides as confirmed by thermogravimetric analysis and in some cases by powder X-ray diffraction studies.