Derivatives of Photosensitive CORM‐S1 – CO Complexes of Iron and Ruthenium with the (OC)2M(S–C–C–NH2)2 Fragment

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY(2012)

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Abstract
[Fe(CO)(2)(SCH2CH2NH2)(2)] (1, CORM-S1), [Fe(CO)(2)(SC6H4-2- NH2)(2)] (2, CORM-S2), [Ru(CO)(2)(SCH2CH2NH2)(2)] (3), and [Ru(CO)(2)(SC6H4-2-NH2)(2)] (4) were prepared from the corresponding metal carbonyl compounds and cysteamine (deprotonation of the thiol functionality) or cystamine (oxidative addition of the S-S bond). They crystallized from donor sol-vents, such as tetrahydrofuran and dimethylformamide, as adducts with the bases bound by hydrogen bridges to the amino functionalities. Although the iron derivatives proved to be valuable photosensitive CO-releasing molecules (CORMs), CO was not released from the ruthenium analogs with visible light.
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Key words
Carbonyl ligands,Carbon monoxide,CO-releasing molecules,Iron,Ruthenium,Medicinal chemistry
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