作者:Raji Raveendran、Samudranil Pal
DOI:10.1016/j.jorganchem.2008.12.064
日期:2009.4
methanol provide cyclometallated ruthenium(III) complexes of formula trans-[Ru(apahR)(PPh3)2Cl] in 74–81% yields. The complexes have been characterized by elemental analysis, magnetic susceptibility, spectroscopic (infrared, electronic and EPR) and electrochemical measurements. X-ray crystal structures of two representative complexes have been determined. In each complex, the metal centre is in distorted
的席夫碱(H反应2从苯乙酮和酰肼,三乙胺和的[Ru(PPH衍生apahR)3)3氯2 ](:2:1摩尔比)的甲醇提供环金属化的式钌(III)配合物的反式- [Ru(apahR)(PPh 3)2 Cl]的产率为74-81%。通过元素分析,磁化率,光谱学(红外,电子和EPR)和电化学测量对复合物进行了表征。已经确定了两种代表性配合物的X射线晶体结构。在每个复合物中,金属中心位于扭曲的八面体CNOClP 2中由C,N,O供体经向跨越apahR 2-,氯离子和两个相互反方向的PPh 3分子组装而成的配位球。所有的配合物是一电子顺(μ EFF。 = 1.85-1.98 μ乙),并显示菱形EPR谱在冷冻(120 K)二氯甲烷-甲苯(1:1)溶液中。由于配体到金属的电荷转移和以配体为中心的跃迁,络合物的电子光谱在470-270 nm范围内显示出几种吸收。该络合物具有氧化还原活性,在电位范围-0.66至-0