Kinetic study of the skeletal inversion in a tetrairon-sulfur cluster {η5-C5H4(SiMe3)}4Fe4S6

被引：0

作者：

Tobita, H ^{[1
]}

Yamada, M ^{[1
]}

Inomata, S ^{[1
]}

Ogino, H ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Sci, Dept Chem, Sendai, Miyagi 9808578, Japan

来源：

CHEMISTRY LETTERS | 1998年 / 06期

关键词：

D O I：

10.1246/cl.1998.507

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A chiral cluster Cp(S1)4(Fe)4(S)6 (Cp-S1 =eta(5-)C(5)H(4)(SiMe3)) was found to be fluxional due to the skeletal inversion. The line shape analysis for variable temperature H-1 NMR spectra (400 MHz, toluene-d(8)) yielded activation parameters: Delta H double dagger = 63.7 +/- 16.0 kJ mol(-1) and Delta S double dagger = -20.8 +/- 16.0 J mol(-1) K-1. A plausible mechanism for the dynamic behavior is proposed.

引用

页码：507 / 508

页数：2

共 8 条

[1] CRYSTAL AND MOLECULAR-STRUCTURE OF IRON-SULFUR CLUSTER (C5H5)4FE4S6, A REDETERMINATION [J].

BEHM, H ;

JORDANOV, J ;

MOERS, FG ;

BEURSKENS, PT .

JOURNAL OF CRYSTALLOGRAPHIC AND SPECTROSCOPIC RESEARCH, 1991, 21 (06) :741-744

[2]

BINSCH G, DNMR3 PROGRAM 16K QU, P1070

[3] IRON-SULFUR CLUSTERS WITH RIGID CHIRAL FRAMEWORKS [J].

EDIDIN, RT ;

ZYZYCK, LA ;

NORTON, JR .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1979, (13) :580-581

[4] INTRAMOLECULAR DYNAMICS IN THE MIXED-VALENCE CLUSTER (CH3C5H4)4RU4S4(2+) - OBSERVATION OF MOBILE METAL-METAL BONDS [J].

HOUSER, EJ ;

AMARASEKERA, J ;

RAUCHFUSS, TB ;

WILSON, SR .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1991, 113 (19) :7440-7442

[5] SYNTHETIC AND STRUCTURAL STUDIES ON (RC5H4)4RU4E40/2+ (E = S, SE, TE) - MOBILE METAL-METAL BONDS WITHIN A MIXED-VALENCE RUIV/RUIII CLUSTER [J].

HOUSER, EJ ;

RAUCHFUSS, TB ;

WILSON, SR .

INORGANIC CHEMISTRY, 1993, 32 (19) :4069-4076

[6] SYNTHESIS, CHARACTERIZATION, AND REACTIONS OF IRON-SULFUR CLUSTERS CONTAINING THE S-2 LIGAND - [CP2FE2(S2)(SR)2]0,1+,[CP4FE4S5]0,1+,2+, AND [CP4FE4S6] [J].

KUBAS, GJ ;

VERGAMINI, PJ .

INORGANIC CHEMISTRY, 1981, 20 (08) :2667-2676

[7]

Vergamini P.J., 1976, PROG INORG CHEM, V21, P261

[8] Isolation and structural characterization of complexes formed in the reactions of [{C5H4(SiMe(3))}(2)Fe-2(CO)(4)] and [{1,3-C5H3(SiMe(3))(2)}(2)Fe-2(CO)(4)] with elemental sulfur [J].

Yamada, M ;

Tobita, H ;

Inomata, S ;

Ogino, H .

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1996, 69 (04) :861-867

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