Models for the lower S states of photosystem II:: A trinuclear mixed-valent MnII/MnIV/MnII complex

被引：53

作者：

Alexiou, M

Dendrinou-Samara, C

Karagianni, A

Biswas, S

Zaleski, CM

Kampf, J

Yoder, D

Penner-Hahn, JE

Pecoraro, VL ^{[1
]}

Kessissoglou, DP

机构：

[1] Aristotle Univ Thessaloniki, Dept Chem, Thessaloniki 54124, Greece

[2] Univ Michigan, Dept Chem, Ann Arbor, MI 48109 USA

来源：

INORGANIC CHEMISTRY | 2003年 / 42卷 / 07期

关键词：

D O I：

10.1021/ic026050h

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The trinuclear complex Mn-3(pko)(4)(CH3O)(2)(SCN)(2).CH3OH, 1, where Hpko is 2,2'-dipyridylketonoxime, is a rare example of a complex simultaneously containing Mn-II and Mn-IV. X-ray crystallography and XANES spectroscopy clearly distinguish the (Mn2MnIV)-Mn-II valence isomer from the more commonly observed (Mn2MnIV)-Mn-III formulation. Fits to variable-temperature magnetic susceptibility data indicate that the Mn-II and Mn-IV are ferromagnetically coupled (J = +6.13 cm(-1)) and that 1 has an S = 13/2 ground state.

引用

页码：2185 / 2187

页数：3

共 20 条

[1] Afrati T, 2002, ANGEW CHEM INT EDIT, V41, P2148, DOI 10.1002/1521-3773(20020617)41:12<2148::AID-ANIE2148>3.0.CO
[2] 2-R
[3] An oscillating manganese electron paramagnetic resonance signal from the S-0 state of the oxygen evolving complex in photosystem II
Ahrling, KA
Peterson, S
Styring, S
[J]. BIOCHEMISTRY, 1997, 36 (43) : 13148 - 13152
[4] Real-space multiple-scattering calculation and interpretation of x-ray-absorption near-edge structure
Ankudinov, AL
Ravel, B
Rehr, JJ
Conradson, SD
[J]. PHYSICAL REVIEW B, 1998, 58 (12): : 7565 - 7576
[5] Boudreaux E. A., 1976, THEORY APPL MOL PARA, P494
[6] An evaluation of structural models for the photosynthetic water-oxidizing complex derived from spectroscopic and X-ray diffraction signatures
Carrell, TG
Tyryshkin, AM
Dismukes, GC
[J]. JOURNAL OF BIOLOGICAL INORGANIC CHEMISTRY, 2002, 7 (1-2): : 2 - 22
[7] TETRANUCLEAR MANGANESE OXO COMPLEX WITH A 2.7-A MN=MN SEPARATION AND INTRAMOLECULAR H2O=(MU-O) HYDROGEN-BONDED CONTACTS - [MN4O2(TPHPN)2(H2O)2(CF3SO3)2](CF3SO3)3 - POSSIBLE MODE FOR BINDING OF WATER AT THE ACTIVE-SITE OF THE OXYGEN-EVOLVING COMPLEX IN PHOTOSYSTEM-II
CHAN, MK
ARMSTRONG, WH
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1990, 112 (12) : 4985 - 4986
[8] DRAGO RS, 1992, PHYS METHODS CHEM, P471
[9] A systematic K-edge X-ray absorption spectroscopic study of Cu(III) sites
DuBois, JL
Mukherjee, P
Stack, TDP
Hedman, B
Solomon, EI
Hodgson, KO
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (24) : 5775 - 5787
[10] A BENT MIXED-VALENCE MANGANESE(III/II/III) COMPLEX - A NEW CLASS OF TRINUCLEAR, ACETATE BRIDGED SCHIFFS BASE COMPOUNDS EXHIBITING A G = 2 MULTILINE ESR SIGNAL
KESSISSOGLOU, DP
KIRK, ML
BENDER, CA
LAH, MS
PECORARO, VL
[J]. JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1989, (02) : 84 - 86

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