C-13 NMR-STUDIES OF OXO-CENTERED TRINUCLEAR CHROMIUM(III) COMPLEXES OF THE GENERAL FORMULA [CR3O(O2CR)6(L)3]+ (R=ME, PH, L=H2O,PY)

被引：20

作者：

BELMORE, K ^{[1
]}

MADISON, XJ ^{[1
]}

HARTON, A ^{[1
]}

VINCENT, JB ^{[1
]}

机构：

[1] UNIV ALABAMA, DEPT CHEM, TUSCALOOSA, AL 35487 USA

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 1994年 / 50卷 / 14期

关键词：

D O I：

10.1016/0584-8539(94)E0003-S

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

C-13 NMR resonances of a series of oxo-centered trinuclear chromium complexes have been observed and assigned. A pi-delocalization mechanism dominates where ligands contain aromatic substituents or bridging carboxylate functionalities, consistent with the presence of a metal center where to first approximation unpaired electrons reside solely in t2g orbitals. A contrast is made between the delocalization mechanism in these complexes and those of their isostructural Mn and Fe analogues.

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页码：2365 / 2370

页数：6

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