Synthesis, X-ray structure, spectroscopic, DFT study and catalytic activity of cis-[RuCl2(L)(EPh3)] complexes (E = P, As, Sb; L = NN′N" tridentate azoimine-quinoline ligands)

被引：5
作者：
Al-Noaimi, Mousa [1 ]
Hammoudeh, Ayman [2 ]
Awwadi, Firas F. [3 ]
Bader, Raja [1 ]
Mahmoud, Amal [2 ]
机构：
[1] Hashemite Univ, Dept Chem, POB 150459, Zarqa 13115, Jordan
[2] Yarmouk Univ, Dept Chem, POB 566, Irbid, Jordan
[3] Univ Jordan, Dept Chem, Amman 11942, Jordan
来源：
INORGANICA CHIMICA ACTA | 2018年 / 471卷
关键词：
Ru(II) complex; X-ray structure; Electrochemistry; DFT calculation; Transfer hydrogenation; ASYMMETRIC TRANSFER HYDROGENATION; PYRAZOLYL-IMIDAZOLYL LIGAND; DENSITY-FUNCTIONAL THEORY; CRYSTAL-STRUCTURE; RUTHENIUM(II) COMPLEXES; EXCITATION-ENERGIES; NNN LIGAND; BASIS-SETS; KETONES; BEARING;
D O I：
10.1016/j.ica.2017.10.033
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
New of complexes of formula cis-[RuCl2(L)(PPh3)] (C1-C5) where L = XC6H4N=NC(COCH3)=NC9H6N, X = H, L1 (C1); CH3, L2 (C2); Br, L3 (C3); CN, L4 (C4), F, L5 (C5)} and cis-[RuCl2(L1)(EPh3)] where E = As (C6); E = Sb (C7) have been synthesized by refluxing [RuCl2(EPh3)(3)] and L in a mixture of (5:1) chloroform/ethanol solution. The complexes have been characterized by the spectroscopic techniques (IR, NMR and UV-Vis) and geometries have been confirmed by X-ray crystal structures of cis-[RuCl2(L3)(PPh3)] (C3). The electronic structure, redox and absorption properties of the complexes have been explained based on DFT and TDDFT results. Cyclic voltammetric studies show one reversible Ru(III)/Ru(II) oxidation couple and two successive one electron reductions leading to the formation of L(0/-1) and L(-1/-2), respectively. The complexes cis-[RuCl2(L)(EPh3)](C1-C7) catalyze the transfer hydrogenation of acetophenone in 2-propanol at 86 degrees C and in the presence NaOCH3. (C) 2017 Elsevier B.V. All rights reserved.
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页码：186 / 193
页数：8
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