Approaches to wired terpyridine: Bithienyl alkynyl derivatives of 2,2′:6′,2"-terpyridine and their ruthenium(II) complexes

被引：5
|
作者：
Constable, Edwin C. [1 ]
Figgemeier, Egbert [1 ]
Housecroft, Catherine E. [1 ]
Medlycott, Elaine A. [1 ]
Neuburger, Markus [1 ]
Schaffner, Silvia [1 ]
Reymann, Sebastien [1 ]
机构：
[1] Univ Basel, Dept Chem, CH-4056 Basel, Switzerland
来源：
POLYHEDRON | 2008年 / 27卷 / 18期
基金：
瑞士国家科学基金会;
关键词：
Alkyne; 2,2 ':6 ',2 ''-Terpyridine; Heterocyclic; Coordination; Ruthenium; Thienyl;
D O I：
10.1016/j.poly.2008.09.002
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Two approaches to the formation of ruthenium(II) complexes containing ligands with conjugated 2,2':6',2"-terpyridine (tpy), alkynyl and bithienyl units have been investigated. Bromination of 4'-(2 2',bithien-5'-yl)-2,2':6',2"-terpyridine leads to 4'-(5-bromo-2,2'-bithien-5'-yl)-2,2':6',2"-terpyridine (1), the single crystal structure of which has been determined. The complexes [Ru(1)(2)][PF6](2) and [Ru(tpy)(1)][PF6](2) have been prepared and characterized. Sonogashira coupling of the bromo-substituent with (TIPS)C CH did not prove to be an efficient method of preparing the corresponding complexes with pendant alkynyl units. The reaction of 4'-ethynyl-2,2':6',2"-terpyridine with 5-bromo-2,2'-bithiophene under Sonoashira conditions yielded ligand 2, and the heteroleptic ruthenium(II) complex [Ru(2)9 (tpy)][PF6](2) has been prepared and characterized. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3601 / 3606
页数：6
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