Synthesis, Structure, and Spectroscopic and Electrochemical Properties of Copper(II/I) Complexes with Symmetrical and Unsymmetrical 2,9-Diaryl-1,10-phenanthroline Ligands

被引:19
|
作者
Yang, Peiju [1 ]
Yang, Xiao-Juan [1 ,2 ]
Wu, Biao [1 ,2 ]
机构
[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China
[2] Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China
关键词
Copper; Structure elucidation; Electrochemistry; N ligands; TRANSITION-METAL-COMPLEXES; EXCITED-STATES; MOLECULAR-STRUCTURES; CRYSTAL-STRUCTURES; 1,10-PHENANTHROLINE; PHENANTHROLINES;
D O I
10.1002/ejic.200900024
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A series of copper(II) and copper(I) complexes, [CuX2L] (1-6) and [CuL2](CuX2) (7-12) (X = Cl, Br; L = 2-R-9-R'-1,10-phenanthroline, dpp: R = R' = Ph; npp: R = naphthyl, R' = Ph; drip: R = R' = naphthyl) were synthesized and characterized by elemental analysis, UV/Vis and IR spectroscopy, and Xray crystal diffraction (for 1, 3, 6, and 12). The copper(II) complexes are four-coordinate with one phenanthroline ligand and two halogen atoms, whereas the copper(I) complexes are tetrahedrally coordinated by two bidentate phenanthroline ligands. Cyclic voltammetry studies of the Cu-I complexes in CH2Cl2 reveal that bulky groups in the 2,9-positions have significant effects on the redox potential of the Cu-II/I couple, which is more positive for the complexes with the drip ligand than those with the dpp and npp ligands. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
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页码:2951 / 2958
页数:8
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