Zinc(II) arene tellurolato complexes as precursors to zinc telluride. The crystal and molecular structure of [Zn(TeC6H2Me3-2,4,6)2(pyridine)2]
作者:Manfred Bochmann、Gabriel C. Bwembya、Annie K. Powell、Xuejing Song
DOI:10.1016/0277-5387(95)00215-e
日期:1995.12
The zinc tellurolato complex [Zn(TeC6H2Me3-2,4,6)2]n (1) was obtained by protolysis of Zn[N(SiMe3)2]2 with mesitylene tellurol, 2,4,6-Me3C6H2TeH, in light petroleum. The complex formed a coordination polymer soluble only in strongly coordinating solvents. Reaction with one equivalent of PMe3 afforded [Zn(TeC6H2Me3)2(PMe3)] (2), while an excess of Lewis bases L gave four-coordinate adducts [Zn(TeC6H2Me3)2L2]
碲化锌络合物[Zn(TeC 6 H 2 Me 3 -2,4,6 )2 ] n(1)是通过将Zn [N(SiMe 3)2 ] 2与1,4,4,3,3,5-三甲基苯三醇分解而获得的。 -Me 3 C 6 H 2 TeH,在轻质石油中。该络合物形成仅可溶于强配位溶剂的配位聚合物。与一当量的PMe 3反应,得到[Zn(TeC 6 H 2 Me 3)2(PMe 3)](2),而过量的路易斯碱L给出四配位加合物[Zn(TeC 6 H 2 Me 3)2 L 2 ] [L = PMe 3(3),N-甲基咪唑(5),吡啶(6);L 2 = Me 2 PC 2 H 4 PMe 2(4)]。加合物的溶解度大于1,但在加热时失去L。6的晶体结构通过X射线衍射测定了H 2 O 3,并证实了该络合物的单体性质。在没有溶剂的情况下或在石蜡油中加热复合物至270–320°C导致立方晶ZnTe的形成。在真空中长时间暴露于3