Nickel(II) and Iron(II) Complexes with Tetradentate NHC/Amide Hybrid Ligands

被引：11
|
作者：
Klawitter, Iris [1 ]
Meyer, Steffen [1 ]
Demeshko, Serhiy [1 ]
Meyer, Franc [1 ]
机构：
[1] Univ Gottingen, Inst Anorgan Chem, D-37077 Gottingen, Germany
来源：
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES | 2013年 / 68卷 / 5-6期
关键词：
Nickel; Iron; N-Heterocyclic Carbene; Chelate Ligand; X-Ray Crystallography; MoBbauer Spectroscopy; Redox Properties; HETEROCYCLIC CARBENE COMPLEXES; REDOX POTENTIALS; CATALYSTS; CHEMISTRY; PALLADIUM;
D O I：
10.5560/ZNB.2013-3091
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Two methylene-bridged bis(imidazolium) salts [H4L1](PF6)(2) and [H4L2](PF6)(2) with appended amide groups have been synthesized which, after deprotonation, may serve as potentially tetradentate ligands providing two bis(imidazole-2-ylidene) and two amide donors. Using [H4L1](PF6)(2), a square-planar nickel(II) complex [NiL1] and a six-coordinate bis(ligand) iron(II) complex [Fe(HL1)(2)] have been isolated and structurally characterized. Their low-spin states have been confirmed spectroscopically, and their redox properties have been studied by cyclic voltammetry. Oxidations are metal-centered to give Ni-III and Fe-III species, respectively.
引用
收藏
页码：458 / 466
页数：9
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