Literature DB >> 17284026

Photochemical production of a highly reactive porphyrin-iron-oxo species.

Zhengzheng Pan1, Rui Zhang, Leslie W-M Fung, Martin Newcomb.   

Abstract

Oxidation of 5,10,15,20-tetramesitylporphyrinatoiron(III) perchlorate, (TMP)FeIII(ClO4), with ferric perchlorate in acetonitrile gave a metastable species identified as (TMP)FeIV(ClO4)2 that decayed within seconds to the known isomeric species (TMP*+)FeIII(ClO4)2. Irradiation of the metastable species with 355 nm laser light gave a highly reactive transient that reacts with simple organic reductants (alkenes and arylalkanes) 5 orders of magnitude faster than known Compound I analogues, (TMP*+)FeIV(O)(X-).

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Year:  2007        PMID： 17284026      PMCID： PMC2525790          DOI： 10.1021/ic061972w

Source DB:  PubMed          Journal:  Inorg Chem        ISSN： 0020-1669            Impact factor:   5.165


  19 in total

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4.  Photochemical generation of a highly reactive iron-oxo intermediate. A true iron(V)-oxo species?

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8.  Laser flash photolysis generation and kinetic studies of porphyrin-manganese-oxo intermediates. Rate constants for oxidations effected by porphyrin-Mn(V)-oxo species and apparent disproportionation equilibrium constants for porphyrin-Mn(IV)-oxo species.

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  15 in total

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2.  Photochemical generation and kinetic studies of a putative porphyrin-ruthenium(V)-oxo species.

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8.  Tunneling in C-H oxidation reactions by an oxoiron(IV) porphyrin radical cation: direct measurements of very large H/D kinetic isotope effects.

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9.  Formation of stable and metastable porphyrin- and corrole-iron(IV) complexes and isomerizations to iron(III) macrocycle radical cations.

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10.  Biomimetic Reactivity of Oxygen-Derived Manganese and Iron Porphyrinoid Complexes.

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