Reduction of (chloro)-μ-nitrido-bis[(tetra-tert-butyl-phthalocyaninato)iron(IV)] with organic N-bases
作者： Svetlana V. Zaitseva , Sergei A. Zdanovich , Elena Y. Tyulyaeva , Ekaterina S. Grishina , Oskar I. Koifman
DOI: 10.1142/S1088424616500474
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摘要: The interaction of (chloro)-μ-nitrido-bis[(tetra-tert-butyl-phthalocyaninato)iron(IV)] Cl(FePc)2N with organic N-bases L as electron–donors (L = diethylamine, imidazole, 1-methylimidazole, 2-methylimidazole) the formation one-electron reduced species (L)PcFeIII–N=FeIVPc(L) was investigated in benzene at 298 K by UV-visible spectroscopy. reaction established to be stepwise process including fast reversible axial binding two substrate molecules onto iron cations followed slow metal-centered reduction. results IR, ESI-MS and EPR study support final product Fe+3–N =Fe+4 unit first coordination sphere. kinetics studied, pre-equilibrium constants Keq rate k were obtained. values found linearly correlated basicity substrates pKa. possibility transition Fe4+→ Fe3+ is promoted electron–donor properties combined pre...
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