PYRIDINESELENOLATE COMPLEXES OF COPPER AND INDIUM : PRECURSORS TO CUSEX AND IN2SE3

摘要: The pyridineselenolate (2-Se-NC5H4, (SePy)) and the 3-(trimethylsilyl)pyridineselenolate (3-Me3Si-2-Se-NC5H4 (SePy*)) ligands form air-stable homoleptic coordination compounds of Cu(I) { [Cu(SePy)]4 (1) [Cu(SePy*)]4 (2)} In(III) {In(SePy)3 (3) In(SePy*)3 (4)}. Mass spectroscopic characterization indicated a tetrametallic core, this was confirmed with single-crystal X-ray structural crystalline 1 2, which both contain cluster ions bound to two doubly bridging Se atoms pyridine nitrogen. Cu sphere is completed strong Cu−Cu bonds one weaker interaction. indium 3 4 are each distorted fac-octahedral molecules chelating SePy ligands. These useful low-temperature precursors binary selenides. Both sublime intact; thermally decomposes give In2Se3. clusters do not intact but still decompose metal selenide p...