99626-41-2Relevant academic research and scientific papers
N-acyl isocyanide complexes of iron(II) porphyrins: Analogy between the bonding properties of N-acyl isocyanides and carbon monoxide
Le Plouzennec, Maryvonne,Bondon, Arnaud,Sodano, Patric,Simonneaux, Gérard
, p. 1254 - 1257 (2008/10/08)
The bonding properties of N-acyl isocyanides (RC(=O)NC; R = Ph, t-Bu) in ferrous porphyrin complexes have been studied. The hexacoordinate complexes FeII(porphyrin)(CNCOR)2, with porphyrin = TPP, TTP, or DPDME,1 and the pentacoordinate complexes Fe(TPP)(CNCOPh) and Fe(TPP)(CNCO-t-Bu) have been prepared. NMR studies show that both mono- and bis(N-acyl isocyanide) adducts are diamagnetic. The comparison of IR and M?ssbauer data indicates a great similarity between the bonding properties of the N-acyl isocyanide and carbon monoxide ligands. The mixed hexacoordinate complexes (P)Fe-(CNCOPh)L (L = pyridine, N-methylimidazole, 4-cyanopyridine, and tetrahydrothiophene) have been obtained from (P)Fe-(CNCOPh)2 complexes by displacement of the N-benzoyl isocyanide ligand upon addition of 1 equiv of L, providing models for isocyanide binding to myoglobin.
