Tricarbonylmanganese(I) and –rhenium(I) Complexes of Imidazol‐Based Phosphane Ligands: Influence of the Substitution Pattern on the CO Release Properties
作者:Peter C. Kunz、Wilhelm Huber、Alfonso Rojas、Ulrich Schatzschneider、Bernhard Spingler
DOI:10.1002/ejic.200900650
日期:2009.12
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
咪唑基膦配体三(咪唑-2-基)膦(2-TIPH)、三(N-甲基咪唑-2-基)膦(2-TIPNMe)和三[制备了 2-异丙基咪唑-4(5)-基] 膦 (4-TIPiPr) 以及氧化膦 (4-TIPOiPr) 和硫化物 (4-TIPSiPr) 配体。这些三(咪唑基)配体充当 N,N,N-三足螯合配体。锰配合物 [(2-TIPNMe)Mn(CO)3]OTf 和 [(4-TIPSiPr)Mn(CO)3]OTf 以及铼化合物 [(4-TIPOiPr)Re( CO)3]OTf 通过 X 射线衍射测定。使用基于紫外/可见光谱的肌红蛋白测定法研究了这些复合物作为可光活化 CO 释放分子 (CORM) 的潜力。在制备的一系列化合物中,发现咪唑基的取代模式显着影响 CO 释放效率和化学计量。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany