Ruthenium hydride and vinyl complexes supported by nitrogen–oxygen mixed-donor ligands
摘要:
The Schiff base, 2-chlorophenylsalicylaldimine (HL1), is formed readily from salicylaldehyde and 2-chloroaniline. After deprotonation, this ligand is found to react as a bidentate mixed-donor chelate with the complexes [RuRCl(CO)(BTD)(PPh3)(2)] (R = H, CH=CHC6H5, CH=CHC6H4Me-4, CH=CH'Bu, CC CPh=CHPh; BTD = 2,1,3-benzothiadiazole) to form the compounds [RuR(L-1)(CO)(PPh3)(2)] through displacement of the chloride and BTD ligands. An analogous reaction occurs with the osmium complex [OsHCl(CO)(BTD)(PPh3)(2)] to provide [OsH(L-1)(CO)(PPh3)(2)]. The compound [Ru(CH=CHC6H4Me-4)(L-1)(CO)(PPh3)(2)] is formed through reaction of salicylalclehyde (HL2) with [Ru(CH=CHC6H4Me-4)Cl(CO)(BTD)(PPh3)(2)] in the presence of base. Two further ligands were investigated to extend the study to encompass 5- and 4-membered chelates; 8-hydroxyquinoline (HL3) and 2-hydroxy-4-methylquinoline (HL4) react with [Ru(CH=CHPh)Cl(CO)(BTD)(PPh3)(2)] and [Ru(CH=CHC6H4Me-4)Cl(CO)(BTD)(PPh3)(2)] in the presence of base to yield the complexes [Ru(CH=CHPh)(L-3)(CO)(PPh3)(2)] and [Ru (CH=CHC6H4Me-4)(L-4)(CO)(PPh3)(2)], respectively. The crystal structure of [Ru(CH=CHC6H4Me-4)(L-1)(CO)(PPh3)(2)] is reported. (c) 2005 Elsevier B.V. All rights reserved.
笔记。钌的水合(苯并硫代二唑)配合物:[RuCl(H)(CO)(PPh 3)(SN 2 C 6 H 4)]的晶体结构
摘要:
络合物[RuCl(H)(CO)(PPh 3)3 ]与2,1,3-苯并噻二唑(C 6 H 4 N 2 S)或2,1,3-苯并硒二唑(C 6 H 4 N 2 Se )以提供化合物[RuCl(H)(CO)(PPh 3)2(EN 2 C 6 H 4)](E = S或Se)。反式-[RuCl(H)(CO)(PPh 3)2(SN 2 C 6 H 4)的X射线衍射研究)]建立了通过一个氮原子和顺式与氢配体配位的杂环配位方式。晶体结构还显示了不对称单元的两个分子的未配位的NS多重键之间的不寻常的四中心相互作用。
The stepwise generation of multimetallic complexes based on a vinylbipyridine linkage and their photophysical properties
作者:Anita Toscani、Khairil A. Jantan、Jubeda B. Hena、Jonathan A. Robson、Emily J. Parmenter、Valentina Fiorini、Andrew J. P. White、Stefano Stagni、James D. E. T. Wilton-Ely
DOI:10.1039/c6dt03810g
日期:——
The versatile rhenium complex [ReCl(CO)3(bpyC[identical with]CH)] (HC[identical with]Cbpy = 5-ethynyl-2,2'-bipyridine) is used to generate a series of bimetallic complexes through the hydrometallation of [MHCl(CO)(BTD)(PPh3)2] (M = Ru, Os; BTD = 2,1,3-benzothiadiazole). The...