Coupling of organometallic reaction centers through the non-planar bridging ligand 2,3-bis(2-pyridyl)pyrazine

被引：4
作者：
Berger, S
Scheiring, T
Fiedler, J
Kaim, W
机构：
[1] Univ Stuttgart, Inst Anorgan Chem, D-70550 Stuttgart, Germany
[2] J Heyrovsky Inst Phys Chem & Electrochem, CR-18223 Prague, Czech Republic
来源：
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2004年 / 630卷 / 13-14期
关键词：
crystal structure; eletrochemistry; iridium; rhodium; UV/vis-spectroscopy;
D O I：
10.1002/zaac.200400133
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The widely used ligand 2,3-bppz = 2,3-bis(2-pyridyl)pyrazine and the complexes [(2,3-bppz){(C5Me5)ClM}(11)](PF6)(n), M = Rh or Ir and n = 1 or 2, were investigated by cyclic voltammetry and UV/VIS-spectroelectrochemistry. For both the mononuclear and, unusually, the dinuclear complexes we observed only chloride-dissociative two-electron reduction processes. One of the precursor complexes, [(2,3-bppz)(C5Me5)ClIr]Cl.2H(2)O, was structurally characterized and found to contain a considerably nonplanar 2,3-bppz ligand.
引用
收藏
页码：2409 / 2417
页数：9
相关论文
共 51 条
[1]   Designing dendrimers based on transition metal complexes. Light-harvesting properties and predetermined redox patterns [J].
Balzani, V ;
Campagna, S ;
Denti, G ;
Juris, A ;
Serroni, S ;
Venturi, M .
ACCOUNTS OF CHEMICAL RESEARCH, 1998, 31 (01) :26-34
[2]  
Baumann F. H., UNPUB
[3]   Electron paramagnetic resonance and spectroscopic characteristics of electrogenerated mixed-valent systems [(η5-C5Me5)M(μ-L)M(η5-C5Me5)]+ (M = Rh, Ir;: L=2,5-diiminopyrazines) in relation to the radicals [(η5-C5Me5)ClM(μ-L)MCl(η5-C5Me5)]+ and [(η5-C5Me5)M(μ-L)MCl(η5-C5Me5)]2+ [J].
Berger, S ;
Klein, A ;
Wanner, M ;
Kaim, W .
INORGANIC CHEMISTRY, 2000, 39 (12) :2516-2521
[4]   Metal vs ligand reduction in complexes of dipyrido[3,2-a:2′,3′-c]phenazine and related ligands with [(C5Me5)CIM]+ (M = Rh or Ir):: Evidence for potential rather than orbital control in the reductive cleavage of the metal-chloride bond [J].
Berger, S ;
Fiedler, J ;
Reinhardt, R ;
Kaim, W .
INORGANIC CHEMISTRY, 2004, 43 (04) :1530-1538
[5]  
Berger S, 2001, Z ANORG ALLG CHEM, V627, P620, DOI 10.1002/1521-3749(200104)627:4<620::AID-ZAAC620>3.3.CO
[6]  
2-B
[7]   SPECTROSCOPIC AND ELECTROCHEMICAL PROPERTIES OF THE DIMER TETRAKIS(2,2'-BIPYRIDINE)(MU-2,3-BIS(2-PYRIDYL)PYRAZINE)DIRUTHENIUM(II) AND ITS MONOMERIC ANALOG [J].
BRAUNSTEIN, CH ;
BAKER, AD ;
STREKAS, TC ;
GAFNEY, HD .
INORGANIC CHEMISTRY, 1984, 23 (07) :857-864
[8]   [2,3-DI(2-PYRIDYL)PYRAZINE-N-1,N-2']BIS-(TRIPHENYLPHOSPHINE)COPPER(I) NITRATE ETHANOL SOLVATE [J].
BROOKS, KT ;
FINNEN, DC ;
KIRCHHOFF, JR ;
PINKERTON, AA .
ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 1994, 50 :1696-1699
[9]   ELECTROCHEMICAL GENERATION OF A METAL-HYDRIDE COMPLEX [(C(5)ME(5))IR(L)H](+) (L=2,2'-BIPYRIDINE) - THE ELECTROCHEMICAL-BEHAVIOR [J].
CAIX, C ;
CHARDONNOBLAT, S ;
DERONZIER, A ;
ZIESSEL, R .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1993, 362 (1-2) :301-304
[10]   Mechanism and product characterization from the electroreduction of heterodinuclear complexes [(C5Me5)ClM(μ-L)Re(CO)3X](PF6),M=Rh or Ir, L-2,2′-azobispyridine or 2,2′-azobis(5-chloropyrimidine), X = halide [J].
Frantz, S ;
Weber, M ;
Scheiring, T ;
Fiedler, J ;
Duboc, C ;
Kaim, W .
INORGANICA CHIMICA ACTA, 2004, 357 (10) :2905-2914
123456