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Photochemistry of the $[Fe(CN)_{5}N(O)SR]^{3-}$ complex : a mechanistic study


Photochemistry of the $[Fe(CN)_{5}N(O)SR]^{3-}$ complex : a mechanistic study

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dc.contributor.author Szaciłowski, Konrad [SAP11115985] pl
dc.contributor.author Oszajca, Janusz pl
dc.contributor.author Barbieri, Andrea pl
dc.contributor.author Karocki, Andrzej pl
dc.contributor.author Sojka, Zbigniew [SAP11011573] pl
dc.contributor.author Sostero, Silvana pl
dc.contributor.author Boaretto, Rita pl
dc.contributor.author Stasicka, Zofia pl
dc.date.accessioned 2015-09-17T17:15:55Z
dc.date.available 2015-09-17T17:15:55Z
dc.date.issued 2001 pl
dc.identifier.issn 1010-6030 pl
dc.identifier.uri http://ruj.uj.edu.pl/xmlui/handle/item/15712
dc.language eng pl
dc.title Photochemistry of the $[Fe(CN)_{5}N(O)SR]^{3-}$ complex : a mechanistic study pl
dc.type JournalArticle pl
dc.description.physical 99-108 pl
dc.abstract.en Photochemical behaviour of the title complex (RS − = mercaptosuccinate) was defined as photodissociation and photooxidation– substitution reactions induced by the MLCT transition. The stable products as well as shortly lived intermediate species were identi- fied and characterised by ESR and fast UV/VIS spectroscopic methods. The photodissociation of excited [Fe(CN) 5 N(O)SR)] 3 − (Scheme 1, path a) shifts the equilibrium between the complex and [Fe(CN) 5 NO] 2 − (Eq. (1)). Photooxidation–substitution reaction (Scheme 1, path b) leads to formation of the [Fe III (CN) 5 SR] 3 − complex and the RSNO •− radical. The radical generates different NO-donors in secondary thermal processes, which, however, have no noticeable influence on the nitrosation capacity of the system. Moreover, due to the fast reac- tions in equilibrium between nitroprusside and its thiolate derivative (Eq. (1)), the photooxidation–substitution is really a photocatalytic process and the nitrosation agents are produced mostly at the expense of nitroprusside, whereas the [Fe(CN) 5 N(O)SR] 3 − complex behaves as a photocatalyst. Its photoreactivity induced by visible light ( λ max = 526 nm, ε max = 6000) reduces the threshold energy of the process to nearly the phototherapeutic window. pl
dc.description.volume 143 pl
dc.description.number 2-3 pl
dc.identifier.doi 10.1016/S1010-6030(01)00519-6 pl
dc.identifier.eissn 1873-2666 pl
dc.title.journal Journal of Photochemistry and Photobiology. A, Chemistry pl
dc.language.container eng pl
dc.affiliation Wydział Chemii : Zakład Chemii Nieorganicznej pl
dc.subtype Article pl

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