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Tricarbonylmanganese(I) and –rhenium(I) complexes of imidazol-based phosphane ligands: influence of the substitution pattern on the CO release properties


Kunz, P C; Huber, W; Rojas, A; Schatzschneider, U; Spingler, B (2009). Tricarbonylmanganese(I) and –rhenium(I) complexes of imidazol-based phosphane ligands: influence of the substitution pattern on the CO release properties. European Journal of Inorganic Chemistry, 2009(35):5358-5366.

Abstract

Tricarbonylmanganese(I) and -rhenium(I) complexes of the imidazolylphosphane ligands tris(imidazol-2-yl)phosphane (2-TIPH), tris(N-methylimidazol-2-yl)phosphane (2-TIPNMe), and tris[2-isopropylimidazol-4(5)-yl]phosphane (4-TIPiPr) as well as the phosphane oxide (4-TIPOiPr) and sulfide (4-TIPSiPr) ligands were prepared. These tris(imidazolyl) ligands act as N,N,N-tripodal chelating ligands. The solid-state structures of the manganese complexes [(2-TIPNMe)Mn(CO)3]OTf and [(4-TIPSiPr)Mn(CO)3]OTf as well as the rhenium compound [(4-TIPOiPr)Re(CO)3]OTf were determined by X-ray diffraction. The potential of these complexes as photoactivatable CO-releasing molecules (CORMs) was studied with the UV/Vis spectroscopy-based myoglobin assay. Within the series of compounds prepared, the substitution pattern of the imidazolyl groups was found to significantly influence the CO-release efficiency and stoichiometry. (© Wiley-VCH Verlag GmbH & Co. KGaA,69451 Weinheim, Germany, 2009)

Tricarbonylmanganese(I) and -rhenium(I) complexes of the imidazolylphosphane ligands tris(imidazol-2-yl)phosphane (2-TIPH), tris(N-methylimidazol-2-yl)phosphane (2-TIPNMe), and tris[2-isopropylimidazol-4(5)-yl]phosphane (4-TIPiPr) as well as the phosphane oxide (4-TIPOiPr) and sulfide (4-TIPSiPr) ligands were prepared. These tris(imidazolyl) ligands act as N,N,N-tripodal chelating ligands. The solid-state structures of the manganese complexes [(2-TIPNMe)Mn(CO)3]OTf and [(4-TIPSiPr)Mn(CO)3]OTf as well as the rhenium compound [(4-TIPOiPr)Re(CO)3]OTf were determined by X-ray diffraction. The potential of these complexes as photoactivatable CO-releasing molecules (CORMs) was studied with the UV/Vis spectroscopy-based myoglobin assay. Within the series of compounds prepared, the substitution pattern of the imidazolyl groups was found to significantly influence the CO-release efficiency and stoichiometry. (© Wiley-VCH Verlag GmbH & Co. KGaA,69451 Weinheim, Germany, 2009)

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
Dewey Decimal Classification:540 Chemistry
Language:English
Date:2009
Deposited On:06 Feb 2010 14:10
Last Modified:05 Apr 2016 13:52
Publisher:Wiley-Blackwell
ISSN:1434-1948
Publisher DOI:10.1002/ejic.200900650

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