VALENCE-LOCALIZED AND VALENCE-DELOCALIZED MIXED-VALENCE STATES - THE EFFECT OF THE SUBSTITUTION PATTERN OF 1,2-[C6H4(NH)(2)](2-), 1,3-[C6H4(NH)(2)](2-) AND 1,4-[C6H4(NH)(2)](2-) AS BRIDGING LIGANDS

被引：25

作者：

WLODARCZYK, A

MAHER, JP

MCCLEVERTY, JA

WARD, MD

机构：

来源：

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS | 1995年 / 23期

关键词：

D O I：

10.1039/c39950002397

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The mixed-valence complexes [{MoL(NO)X}(2){mu-1,n-C6H4(NH)(2)}]-[L = tris(3,5-dimethylpyrazolyl)hydroborate; X = Cl, Br,I; n = 2,3,4] containing a 1,2-, 1,3- or 1,4-diamidobenzene bridge are prepared by electrochemical or chemical reduction of the diamagnetic neutral species; EPR spectroscopy shows that with 1;2- or 1,4-diamidobenzene as the bridge the mixed-valence state is delocalised on the EPR timescale, whereas with a 1,3-diamidobenzene bridge the mixed-valence state is valence-trapped.

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页码：2397 / 2398

页数：2

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