Complexes of the fac-{Re(CO)3}+ core with tridentate ligands derived from arylpiperazines
作者:Lihui Wei、Sangeeta Ray Banerjee、Murali K. Levadala、John Babich、Jon Zubieta
DOI:10.1016/j.ica.2003.11.027
日期:2004.3
alkylated to give the N-alkylpiperazines of the type XC6H4N(CH2CH2)2N(CH2)nNH2. The amine functions of these derivatives are in turn easily subjected to mono- or dialkylation to provide potentially tridentateligands of the types XC6H4N(CH2CH2)2N(CH2)nN(H)(CH2Y) and XC6H4N(CH2CH2)2N(CH2)nN(CH2Y)(CH2Z), respectively. The latter class of dialkylated derivatives may be symmetrically (Y=Z) or unsymmetrically
characterized and evaluated as the functionalmodels for the carbon-carbon bond-cleaving catechol dioxygenase enzymes. The molecular structure of complexes 1 and 3 revealed a distorted octahedral geometry around iron(III) center with facial coordination of ligands via three nitrogen atoms and three chloride ions occupy the remaining sites of the octahedron. Iron(III) catecholate adducts were generated
六种新的单核铁 (III) 配合物 [Fe(L1)Cl 3 ] - [Fe(L6)Cl 3 ] 带有三齿全氮供体配体(其中 L1 = N -(pyridin-2-ylmethyl)-2-(pyrrolidin) -1-基)乙胺,L2 = 2-(哌啶-1-基)- N -(吡啶-2-基甲基)乙胺,L3 = 1-(哌啶-2-基)- N -(吡啶-2-基甲基) )甲胺,L4 = N -((1-甲基-1 H -咪唑-2-基)甲基)-2-(吡咯烷-1-基)乙烷-1-胺,L5 = N -((1-甲基- 1 H-咪唑-2-基)甲基)-2-(哌啶-1-基)乙烷-1-胺),L6 = 1-(1-甲基-1 H-咪唑-2-基) -N-(哌啶-2-基甲基)甲胺)已被制备、表征和评估为碳-碳键切割儿茶酚双加氧酶的功能模型。配合物1和3的分子结构揭示了围绕铁 (III) 中心的扭曲八面体几何形状,配体通过三个氮原子进