Chemistry of nitrosyliron complexes supported by a β-diketiminate ligand.
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)](2)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.
Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States.
Zachary J
ZJ
Tonzetich
Florent
F
Héroguel
Loi H
LH
Do
Stephen J
SJ
Lippard
D001672:Biocompatible Materials / Q000138:chemical synthesis* / Q000737:chemistry; D032701:Biomimetics / Q000379:methods*; D003035:Cobalt / Q000737:chemistry; D018360:Crystallography, X-Ray; D007501:Iron / Q000737:chemistry; D008024:Ligands; D008956:Models, Chemical; D009589:Nitrogen Oxides / Q000138:chemical synthesis* / Q000737:chemistry; D011166:Porphyrins / Q000737:chemistry
D001672:Biocompatible Materials; D008024:Ligands; D009589:Nitrogen Oxides; D011166:Porphyrins; D003035:Cobalt; C073661:dinitrosyl iron complex; C049692:tetraphenylporphine; D007501:Iron
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