arrangement. Reversible Ru(III)/Ru(II) reduction couple along with irreversible Ru(III)/Ru(IV) oxidation has been observed for the complexes. The complexes catalyze the oxidation of alcohols to aldehydes and ketones in presence of NMO as co-oxidant with moderate to high yields. The electronic structure and solution spectra of the complexes have been supported by DFT and TDDFT calculations.
摘要带有NSNO供体偶氮官能团的
钌(III)配合物,顺式(Cl,Cl)-[Ru(L)Cl2](1)和反式-(Cl,Cl)-[Ru(L)Cl2](2)
配体(HL)已通过几种光谱技术合成并表征。单晶X射线研究证实了顺-(Cl,Cl)-[Ru(L)Cl2](1)的几何形状。X射线结构为1表示Ru周围具有顺式(Cl,Cl)排列的伪八面体几何形状。对于该配合物,已观察到可逆的Ru(III)/ Ru(II)还原对以及不可逆的Ru(III)/ Ru(IV)氧化。在作为共氧化剂的NMO的存在下,该络合物催化醇氧化为醛和酮,产率中等至高。DFT和TDDFT计算已支持了配合物的电子结构和溶液光谱。