Interaction of two equivalent electron transfer atom transfer centers via 2,2′-bipyrimidine as bridging ligand

被引：32

作者：

Baumann, F ^{[1
]}

Stange, A ^{[1
]}

Kaim, W ^{[1
]}

机构：

[1] Univ Stuttgart, Inst Anorgan Chem, D-70550 Stuttgart, Germany

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 1998年 / 1卷 / 08期

关键词：

crystal structures; spectroelectrochemistry; electron transfer; osmium complexes;

D O I：

10.1016/S1387-7003(98)00082-3

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The redox pair [(p-cym) OsCl](+)/ [ (p-cym)Os], p-cym = eta(6)-p-cymene ( 1,4-(C6H4MePr)-Pr-i), involving a two electron process coupled with chloride dissociation, has been studied in the mono- and dinuclear complex with the 2,2'-bipyrimidine (bpym) ligand. Whereas the mononuclear system exhibits the well-known ECE pattern on reduction, the structurally characterized trans-{(mu-bpym) [(p-cym) OsCl](2)}(PF6)(2) shows several special features, including the decoupling of the first ECE process into an E and EC step (electron reservoir function of bpym) and a splitting of 420 mV for the reduction steps associated with the chloride transfer (electronic communication between EC reaction centers). (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：305 / 308

页数：4

共 26 条

[1]

[Anonymous], 1994, ELECT PARAMAGNETIC R

[2] 19-ELECTRON COMPLEXES AND THEIR ROLE IN ORGANOMETALLIC MECHANISMS [J].

ASTRUC, D .

CHEMICAL REVIEWS, 1988, 88 (07) :1189-1216

[3] ORGANOIRON ELECTRON-RESERVOIR COMPLEXES [J].

ASTRUC, D .

ACCOUNTS OF CHEMICAL RESEARCH, 1986, 19 (12) :377-383

[4]

Astruc D., 1995, ELECT TRANSFER RADIC

[5]

BAUMANN F, 1998, THESIS U STUTTGART G

[6]

BOLTON JR, 1991, ADV CHEM SER, V228

[7] SPECTROELECTROCHEMISTRY OF AROMATIC LIGANDS AND THEIR DERIVATIVES .3. BINUCLEAR TRANSITION-METAL COMPLEXES OF CU(I), MO(0), AND RE(I) WITH 2,2'-BIPYRIMIDINE [J].

BRATERMAN, PS ;

SONG, JI ;

KOHLMANN, S ;

VOGLER, C ;

KAIM, W .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1991, 411 (1-2) :207-213

[8] 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

[9] Syntheses, crystal structures and magnetic properties of one-, two- and three-dimensional 2,2′-bipyrimidine-containing copper(II) complexes [J].

De Munno, G ;

Poerio, T ;

Julve, M ;

Lloret, F ;

Faus, J ;

Caneschi, A .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1998, (10) :1679-1685

[10] Synthesis, crystal structure and magnetic properties of the dinuclear manganese(II) complexes [Mn-2(bpym)(3)(NCX)(4)] (bpym equals 2,2'-bipyrimidine; X=S, Se) [J].

DeMunno, G ;

Viau, G ;

Julve, M ;

Lloret, F ;

Faus, J .

INORGANICA CHIMICA ACTA, 1997, 257 (01) :121-129

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