SYNTHESIS AND OXIDATION OF 2 FERROCENE-CAPPED COBALT CLATHROCHELATES IN METHYLENE-CHLORIDE

被引:21
作者
MURGUIA, MA [1 ]
BORCHARDT, D [1 ]
WHERLAND, S [1 ]
机构
[1] WASHINGTON STATE UNIV,DEPT CHEM,PULLMAN,WA 99164
关键词
D O I
10.1021/ic00335a041
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The synthesis and oxidation of two new ferrocene-capped cobalt clathrochelates are described. The compounds Co(nox)3(B-(cp)Fe(cp))2 and Co(dmg)3(B(cp)Fe(cp))2 (nox is 1,2-cyclohexanedione dioximate(2−), dmg is dimethylglyoximate(2−), and cp is cyclopentadienide) can each proceed through a total of six species when a three-electron oxidation of the fully reduced forms occurs. A thermodynamic scheme has been developed to describe the oxidation process. The observed spectrophotometric behavior upon oxidation cannot be adequately explained by assigning one reduction potential to cobalt and one to the two iron centers. Instead, a minimum of three potentials is required. Reduction potentials for the six species, relative to ferrocene, are presented. These potentials show only slight temperature and added salt dependencies. Possible modes of interaction between the metal sites are discussed. © 1990, American Chemical Society. All rights reserved.
引用
收藏
页码:1982 / 1986
页数:5
相关论文
共 26 条
[1]  
[Anonymous], 1969, DATA REDUCTION ERROR
[2]  
BLAIR DF, 1986, J BIOL CHEM, V261, P1524
[3]  
BORCHARDT D, 1984, INORG CHEM, V23, P2537, DOI 10.1021/ic00184a032
[4]   ELECTRON-TRANSFER STUDIES ON A SERIES OF COBALT CLATHROCHELATES IN ACETONITRILE [J].
BORCHARDT, D ;
WHERLAND, S .
INORGANIC CHEMISTRY, 1986, 25 (07) :901-905
[5]   ENCAPSULATION REACTIONS - SYNTHESIS AND STUDY OF CLATHRO CHELATES DERIVED FROM DIMETHYLGLYOXIME, COBALT, AND LEWIS ACIDS [J].
BOSTON, DR ;
ROSE, NJ .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1973, 95 (13) :4163-4168
[6]  
Brown D. B., 1980, MIXED VALENCE COMPOU, P49
[7]   OXIDATION-STATE AND ELECTRON-TRANSFER PROPERTIES OF MIXED-VALENCE 1,1'-POLYFERROCENE IONS [J].
BROWN, GM ;
MEYER, TJ ;
COWAN, DO ;
LEVANDA, C ;
KAUFMAN, F ;
ROLING, PV ;
RAUSCH, MD .
INORGANIC CHEMISTRY, 1975, 14 (03) :506-511
[8]   INTERVALENCE TRANSFER IN UNSYMMETRICAL, LIGAND-BRIDGED DIMERIC COMPLEXES OF RUTHENIUM [J].
CALLAHAN, RW ;
BROWN, GM ;
MEYER, TJ .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1974, 96 (25) :7829-7830
[9]   MIXED-VALENCE COMPLEXES OF D5-D6 METAL CENTERS [J].
CREUTZ, C .
PROGRESS IN INORGANIC CHEMISTRY, 1983, 30 :1-73
[10]   SYNTHESIS AND CHARACTERIZATION OF SPECIES CONTAINING 3 METAL ATOMS [J].
DRAGO, RS ;
ELIAS, JH .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1977, 99 (20) :6570-6577