Synthesis, characterization, and structures of R(3)EOTcO(3) complexes (E = C, Si, Ge, Sn, Pb) and related compounds.
AgTcO(4) reacts with R(3)ECl compounds (E = C, Si, Ge, Sn, Pb; R = Me, (i)Pr, (t)Bu, Ph), (t)Bu(2)SnCl(2), or PhMgCl under formation of novel trioxotechnetium(VII) derivatives. The carbon and silicon derivatives readily undergo decomposition, which was proven by (99)Tc NMR spectroscopy and the isolation of decomposition products such as [TcOCl(3)(THF)(OH(2))]. Compounds [Ph(3)GeOTcO(3)], [(THF)Ph(3)SnOTcO(3)], [(O(3)TcO)Sn(t)Bu(2)(OH)](2), and [(THF)(4)Mg(OTcO(3))(2)] are more stable and were isolated in crystalline form and characterized by X-ray diffraction.
Oehlke
Elisabeth
E
Institute of Chemistry and Biochemistry, Freie Universität Berlin, Fabeckstrasse 34-36, D-14195 Berlin, Germany.
Alberto
Roger
R
Abram
Ulrich
U