Metal-dioxygen and metal-dinitrogen complexes: where are the electrons?

Metal-dioxygen and metal-dinitrogen complexes: where are the electrons?
复制标题

DOI:
10.1039/c001397h
复制
发表时间:
2010-06-21
期刊:
Dalton transactions (Cambridge, England : 2003)
影响因子:
--
通讯作者:
Holland PL
Holland PL
中科院分区:
其他
文献类型:
--
作者:
Holland PL

文献摘要

参考文献

被引文献

相似文献

O2和N2的过渡金属配合物在环境、化学工业和金属酶中发挥着重要作用。本视角比较和对比了这些复合物中结合模式、还原水平以及电子对结合 O2 或 N2 基团性质的影响。金属和双原子配体之间的电荷分布是可变的,并且已经发展出用于描述加合物的不同模型。在某些情况下,单共振结构(例如 M-超氧化物 = M–O2−)是加合物的准确描述。最近的研究表明,某些 N22− 配合物中的磁耦合在共振形式之间存在差异,并且可用于通过实验区分共振结构。另一方面,许多 O2 和 N2 配合物不能用简单的价键模型很好地描述。定义发生歧义的情况是一个值得继续研究的沃土。
Transition-metal complexes of O2 and N2 play an important role in the environment, chemical industry, and metalloenzymes. This Perspective compares and contrasts the binding modes, reduction levels, and electronic influences on the nature of the bound O2 or N2 group in these complexes. The charge distribution between the metal and the diatomic ligand is variable, and different models for describing the adducts have evolved. In some cases, single resonance structures (e.g. M-superoxide = M–O2−) are accurate descriptions of the adducts. Recent studies have shown that the magnetic coupling in certain N22− complexes differs between resonance forms, and can be used to distinguish experimentally between resonance structures. On the other hand, many O2 and N2 complexes cannot be described well with a simple valence-bond model. Defining the situations where ambiguities occur is a fertile area for continued study.
DOI: 10.1021/ic50065a034
发表时间: 1968-01-01
影响因子: 4.6
作者:
BRAIBANTI, A;DALLAVALLE, F;LEPORATI, E
通讯作者: LEPORATI, E
DOI: 10.1139/p74-048
发表时间: 1974-01-01
影响因子: 1.2
作者:
CARLOTTI, M;JOHNS, JWC;TROMBETTI, A
通讯作者: TROMBETTI, A
DOI: 10.1021/om0509037
发表时间: 2006-02-13
期刊: ORGANOMETALLICS
影响因子: 2.8
作者:
Bernskoetter, WH;Olmos, AV;Chirik, PJ
通讯作者: Chirik, PJ