EPR STUDIES OF A DINICKEL COMPLEX IN ITS II,II AND II,III OXIDATION-STATES

被引：32

作者：

HOLMAN, TR ^{[1
]}

HENDRICH, MP ^{[1
]}

QUE, L ^{[1
]}

机构：

[1] UNIV MINNESOTA,DEPT CHEM,MINNEAPOLIS,MN 55455

来源：

INORGANIC CHEMISTRY | 1992年 / 31卷 / 06期

关键词：

D O I：

10.1021/ic00032a002

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The complexes [Ni2(BPMP)(O2CR)2]+/2+ exhibit novel EPR signals which can serve as useful probes for putative dinickel sites in proteins. The antiferromagnetically coupled Ni(II)Ni(II) complex (J = -1 cm-1) has an integer-spin EPR signal at g = 8 arising from an excited S = 2 state. The Ni(II)Ni(II) complex exhibits a ground-state S = 3/2 EPR spectrum (g = 5.7, 2.0), suggestive of ferromagnetically coupled S = 1 Ni(II) and S = 1/2 Ni(III) centers.

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页码：937 / 939

页数：3

相关论文

共 36 条

[1] CRYSTAL AND MOLECULAR-STRUCTURE OF MU-AQUA-BIS(MU-DICHLOROACETATO-O,O')BIS(DICHLOROACETATO)BIS(N,N,N',N'-TETRAMETHYLETHYLENEDIAMINE)DINICKEL(II), NI2(C6H16N2)2(CL2C2HO2)4H2O [J].

AHLGREN, M ;

TURPEINEN, U ;

HAMALAINEN, R .

ACTA CHEMICA SCANDINAVICA SERIES A-PHYSICAL AND INORGANIC CHEMISTRY, 1978, 32 (03) :189-194

[2]

AHLGREN M, 1982, ACTA CRYSTALLOGR B, V38, P1580

[3] MAGNETIC PROPERTIES OF POLYNUCLEAR COMPLEXES .I. SUPEREXCHANGE IN SOME BINUCLEAR NICKEL(2) COMPLEXES [J].

BALL, PW ;

BLAKE, AB .

JOURNAL OF THE CHEMICAL SOCIETY A -INORGANIC PHYSICAL THEORETICAL, 1969, (09) :1415-&

[4] SYNTHESIS, PROPERTIES, AND ELECTROCHEMICAL STUDIES OF A SERIES OF NICKEL(II) COMPLEXES WITH RELATED MACROCYCLIC LIGANDS OF VARIED UNSATURATION [J].

BAREFIELD, EK ;

BUSCH, DH ;

OCHIAI, E ;

TOKEL, NE ;

LOVECCHI, FV .

INORGANIC CHEMISTRY, 1972, 11 (02) :283-+

[5] MODELS FOR IRON OXO PROTEINS - STRUCTURES AND PROPERTIES OF FEIIFEIII, ZNIIFEIII, AND FEIIGAIII COMPLEXES WITH (MU-PHENOXO)BIS(MU-CARBOXYLATO)DIMETAL CORES [J].

BOROVIK, AS ;

PAPAEFTHYMIOU, V ;

TAYLOR, LF ;

ANDERSON, OP ;

QUE, L .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1989, 111 (16) :6183-6195

[6] MODELS FOR DIFERROUS FORMS OF IRON-OXO PROTEINS - STRUCTURE AND PROPERTIES OF [FE2BPMP(O2CR)2]BPH4 COMPLEXES [J].

BOROVIK, AS ;

HENDRICH, MP ;

HOLMAN, TR ;

MUNCK, E ;

PAPAEFTHYMIOU, V ;

QUE, L .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1990, 112 (16) :6031-6038

[7] ACTIVE-SITE MODEL OF UREASE - SYNTHESIS, STRUCTURE, AND MAGNETIC-PROPERTIES OF A BINUCLEAR NI(II) COMPLEX CONTAINING A POLYIMIDAZOLE LIGAND [J].

BUCHANAN, RM ;

MASHUTA, MS ;

OBERHAUSEN, KJ ;

RICHARDSON, JF ;

LI, QY ;

HENDRICKSON, DN .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1989, 111 (12) :4497-4498

[8] SYNTHESIS, MAGNETIC-PROPERTIES, REDOX BEHAVIOR, AND CRYSTAL-STRUCTURE OF THE BRIDGED BINUCLEAR NICKEL(II) COMPLEX [NI2(MU-OH)(MU-CH3CO2)2L2]CLO4.H2O [J].

CHAUDHURI, P ;

KUPPERS, HJ ;

WIEGHARDT, K ;

GEHRING, S ;

HAASE, W ;

NUBER, B ;

WEISS, J .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1988, (05) :1367-1370

[9] X-RAY ABSORPTION SPECTROSCOPIC EVIDENCE FOR BINDING OF THE COMPETITIVE INHIBITOR 2-MERCAPTOETHANOL TO THE NICKEL SITES OF JACK BEAN UREASE - A NEW NI-NI INTERACTION IN THE INHIBITED ENZYME [J].

CLARK, PA ;

WILCOX, DE ;

SCOTT, RA .

INORGANIC CHEMISTRY, 1990, 29 (04) :579-581

[10] MAGNETIC-PROPERTIES OF THE NICKEL ENZYMES UREASE, NICKEL-SUBSTITUTED CARBOXYPEPTIDASE-A, AND NICKEL-SUBSTITUTED CARBONIC-ANHYDRASE [J].

CLARK, PA ;

WILCOX, DE .

INORGANIC CHEMISTRY, 1989, 28 (07) :1326-1333

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