Complexes of the imine/thioether mixed-donor ligand 8-methylthioquinoline with d6-configurated transition metal centers: synthesis, structures and comparison with complexes of 1-methyl-2-(methylthiomethyl)-1H-benzimidazole
作者:Shengfa Ye、Wolfgang Kaim、Markus Albrecht、Falk Lissner、Thomas Schleid
DOI:10.1016/j.ica.2004.03.040
日期:2004.8
of chelating 8-methylthioquinoline (MTQ) with the complex fragments Re I (CO) 3 Cl, [Ru I I (bpy) 2 ] 2 + , [Rh I I I (C 5 Me 5 )Cl] + , [Ir I I I (C 5 Me 5 )Cl] + , and Pt I V Me 4 were synthesized and structurally characterized. Whereas the ruthenium(II) complex displays the strongest preference of bonding to N versus S, the compound (MTQ)PtMe 4 shows the most balanced metal-donor bonding within
螯合8-甲基硫代喹啉(MTQ)与复杂片段Re I(CO)3 Cl,[Ru II(bpy)2] 2 +,[Rh III(C 5 Me 5)Cl] +,[Ir III(合成了C 5 Me 5)Cl] +和Pt IV Me 4并对其结构进行了表征。钌(II)配合物相对于S表现出与N结合最强的偏好,而化合物(MTQ)PtMe 4由于与S(2.319 A)相对较短的结合而在螯合环内显示出最平衡的金属供体键合N(2.150 A)。复杂的fac(MTQ)Re(CO)3 Cl在2.472 A处表现出特别长的金属-硫键。[(MTQ)Ru(bpy)2](PF 6)2的循环伏安法显示出一种可逆的氧化成Ru III和对于配位体,三个紧密间隔的还原波。