Synthesis, structure and characterization of bismuth alkoxides

[摘要] Preparations of (perfluoroaryloxy)bismuth oxide complexes have been undertaken in order to study their reactivity patterns as well as their potential use as precursors to bismuth-containing superconductors via sol gel or CVD processes. The reaction of the dimeric complex (Bi(OC$sb6$F$sb5)sb3$(toluene)$bracksb2,$ prepared by reaction of BiPh$sb3$ with HOC$sb6$F$sb5$ in refluxing toluene, with NaOC$sb6$F$sb5$ in THF yields the hexanuclear complex, $m Bisb6(O)sb3(OCsb6Fsb5)sb{12}.$ Three sodium-bismuth alkoxide complexes were found. The reaction of BiCl$sb3$ with three equivalents of NaOC$sb6$F$sb5$ in THF yields the tetranuclear sodium salt NaBi$sb4(m O)sb2(OCsb6Fsb5)sb9(THF)sb2.$ The polymeric chain of $m lbrack NaBi(OPhsb{f})sb4cdot THFbrackinfty$ was synthesized from the reaction of (Bi(OC$sb6$F$sb5)sb3$(toluene)$bracksb2$ with one equivalent of NaOC$sb6$F$sb5$ in THF. An octahedron of mixed metals, $m Nasb4Bisb2(O)(OPhsb{f})sb8cdot(THF)sb4$ was synthesized from (Bi(OC$sb6$F$ sb5)sb3$(toluene)) $sb2$ and two equivalents of NaOC$sb6$F$sb5$ in THF. Single crystal structure determination and variable temperature NMR studies were done on theses compounds.

[发布机构] Rice University

[效力级别] chemistry