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ISSN 1998-9539
“Babes-Bolyai” University, Department of Chemistry, Cluj-Napoca RO-40028, Romania
@ E-mail: rsilaghi@chem.ubbcluj.ro
Macrogeterocycles, 2008 1(1) 79-81
Mononuclear ferric-oxo moieties are known in non-heme environments, and have been proposed as reaction intermediates in some hemoproteins. Recently, such hemoprotein adducts have been detected spectroscopically via low-temperature cryoradiolytic reduction of their FeIV-oxo counterparts. Here computational results (UBP86/6- 31G**) are shown indicating that the electronic structures of such adducts are well described as S=1 FeIV-oxo coupled to a porphyrin radical, as opposed to the clean ferric state predicted at the same level of theory (and demonstrated experimentally) for the non-heme systems.
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