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Polish Journal of Chemistry

Tytuł artykułu

ell-shaped Dependence of the Quantum Yield of Fe(II) Formation in Irradiated Methanolic Solutions of Iron(III) Azido Methanolic Solutions of Iron(III) Azido Complexes with N, N'-Ethylenebis(benzoylacetoneiminato) Schiff Base Derivatives

Autorzy Sima, J.  Horvathova, L. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
EN The complexes trans-[Fe(4-R-benacen)(CH3OH)N3], where 4-R-benacen2- are tetradentate open-chain N2O2-Schiff base N,N'-ethylenebis(4-R-benzoylacetoneiminato) ligands (R =H, Cl, Br,OCH3, CH3) are redox stable in the dark. Under the impact of ultraviolet and/or visible radiation they undergo photochemical reactions, yielding Fe(II) and formaldehyde CH2O as final products. As an intermediate, _CH2OH radicals were identified by EPR spin trapping technique. The efficiency of the photoredox processes, expressed by the quantum yield of Fe(II) formation, Fi Fe(II) is strongly wavelength dependent and influenced by the peripheral groups R of the tetradentate ligands. It was found, that along with a frequently observed decrease in the quantum yield with decreasing the photon energy of incident radiation (Fi Fe(II) at 313 nm < Fi Fe(II) at 366 nm
Słowa kluczowe
EN photolysis   iron (III) complexes   azide decomposition   mechanism  
Wydawca Polskie Towarzystwo Chemiczne
Czasopismo Polish Journal of Chemistry
Rocznik 2003
Tom Vol. 77 / nr 12
Strony 1857--1865
Opis fizyczny
autor Sima, J.
autor Horvathova, L.
Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-article-BUJ1-0024-0169