Guanidinates as chelating anionic ligands for early, middle and late transition metals:: syntheses and crystal structures of [Ti{η2-(NPh)2CNEt2}2Cl2], [Ru{η2-(NPh)2CNHPh}3] and [Pt{η2-(NPh)2CNHPh}2]

被引：51

作者：

Bailey, PJ ^{[1
]}

Grant, KJ ^{[1
]}

Mitchell, LA ^{[1
]}

Pace, S ^{[1
]}

Parkin, A ^{[1
]}

Parsons, S ^{[1
]}

机构：

[1] Univ Edinburgh, Dept Chem, Edinburgh EH9 3JJ, Midlothian, Scotland

来源：

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 2000年 / 12期

关键词：

D O I：

10.1039/b001992p

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Treatment of the dimeric ruthenium halide complex [Ru(eta-C6H6)Cl-2](2) with 1,2,3-triphenylguanidine provided the tris-chelate [Ru{eta(2)-(NPh)(2)CNHPh}(3)] with loss of the aromatic ligand and metal oxidation. This product may also be prepared by treatment of the previously reported [Ru(eta-p-(PrC6H4Me)-C-i){eta(2)-(NPh)(2)CNHPh}Cl] with bases (KOH, (LiNPr2)-Pr-i, NEt3). Complexes containing chelating guanidinate ligands are also available by means of metathesis of the monolithiated ligands Li[C(NR)(2)NR2] with metal halide complexes, as exemplified by the synthesis of the square planar bis-chelate [Pt{eta(2)-(NPh)(2)CNHPh}(2)] from [Pt(PhCN)(2)Cl-2] and [Ti{eta(2)-(NPh)(2)CN(Et)(2)}(2)Cl-2] from [TiCl4(THF)(2)]. The characterisation of these complexes allows a comparison of the co-ordination properties of chelating guanidinates with early, middle and late transition metals.

引用

页码：1887 / 1891

页数：5

共 34 条

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