Synthesis, reactivity, and X-ray structures of face-sharing Ti(III) complexes;: the new trinuclear ion, [Ti3Cl12]3-

被引:9
作者
Chen, LF
Cotton, FA [1 ]
机构
[1] Texas A&M Univ, Dept Chem, College Stn, TX 77843 USA
[2] Texas A&M Univ, Mol Struct & Bonding Lab, College Stn, TX 77843 USA
关键词
titanium(III); face-sharing complex; chloride; pyridine; crystal structure;
D O I
10.1016/S0277-5387(98)00171-5
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Reduction of TiCl4 with HSnBu3 followed by treatment of the brown solid with a chloride salt produced a precursor (B) for synthesis of face-sharing TI(III) complexes. The precursor, B, can be converted into dinuclear complexes, [Ti2Cl7(PEt3)(2)](-) (1') and [Ti2Cl9](3)3-(3') when treated with one equivalent of PEt3 or Cl-. When only half an equivalent of Cl- was used, a trinuclear complex [Ti3Cl12](3-) (2') was isolated. 2' can be further converted into 3' by treating with Cl-. Substitution of the phosphine ligands in 1' with Cl- converted 1' into 3'. There is no reaction between 3' and Cl-. Reaction of 1' or 3' with py resulted in the formation of a mononuclear species, [trans-Ti(py)(2)Cl-4](-) (4'). In complexes 1', 2', and 3', the Ti atoms are bridged by three Cl atoms. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:3727 / 3734
页数:8
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