β-二酮亚胺配体负载的亚硝酰铁配合物的化学
Chemistry of nitrosyliron complexes supported by a β-diketiminate ligand.
机构信息
Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States.
出版信息
Inorg Chem. 2011 Feb 21;50(4):1570-9. doi: 10.1021/ic102300d. Epub 2011 Jan 18.
Abstract
Several nitrosyl complexes of Fe and Co have been prepared using the sterically hindered Ar-nacnac ligand (Ar-nacnac = anion of (2,6-diisopropylphenyl)NC(Me)CH). The dinitrosyliron complexes [Fe(NO)(2)(Ar-nacnac)] (1) and (Bu(4)N)[Fe(NO)(2)(Ar-nacnac)] (2) react with [Fe(III)(TPP)Cl] (TPP = tetraphenylporphine dianion) to generate [Fe(II)(NO)(TPP)] and the corresponding mononitrosyliron complexes. The factors governing NO transfer with dinitrosyliron complexes (DNICs) 1 and 2 are evaluated, together with the chemistry of the related mononitrosyliron complex, [Fe(NO)Br(Ar-nacnac)] (4). The synthesis and properties of the related cobalt dinitrosyl [Co(NO)(2)(Ar-nacnac)] (3) is also discussed for comparison to DNICs 1 and 2. The solid-state structures of several of these compounds as determined by X-ray crystallography are reported.
摘要
已经使用空间位阻的 Ar-nacnac 配体（Ar-nacnac = (2,6-二异丙基苯基)NC(Me)CH 的阴离子）制备了几种铁和钴的亚硝酰配合物。二亚硝酰铁配合物[Fe(NO)(2)(Ar-nacnac)]（1）和（Bu(4)N）[Fe(NO)(2)(Ar-nacnac)]（2）与[Fe(III)(TPP)Cl]（TPP = 四苯基卟啉二阴离子）反应生成[Fe(II)(NO)(TPP)]和相应的单亚硝酰基铁配合物。评估了二亚硝酰基铁配合物（DNICs）1 和 2 中 NO 转移的因素，以及相关的单亚硝酰基铁配合物[Fe(NO)Br(Ar-nacnac)]（4）的化学性质。还讨论了相关的钴二亚硝酰基[Co(NO)(2)(Ar-nacnac)]（3）的合成和性质，以便与 DNICs 1 和 2 进行比较。通过 X 射线晶体学确定了这些化合物中的几种的固态结构，并进行了报道。
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