Synthesis, spectral and electrochemical study of coordination molecules Cu4OX6L4: 4-cyanopyridine Cu4OBr n Cl(6-n)(4-CNpy)4 complexes

被引：4

作者：

Ondrejovic, Gregor ^{[1
]}

Kotocova, Adela ^{[1
]}

Koman, Marian ^{[1
]}

Segl'a, Peter ^{[1
]}

机构：

[1] Slovak Tech Univ Bratislava, Inst Inorgan Chem Technol & Mat, Fac Chem & Food Technol, SK-81237 Bratislava, Slovakia

来源：

CHEMICAL PAPERS | 2010年 / 64卷 / 03期

关键词：

copper(II) 4-cyanopyridine complexes; donor-acceptor vibrational coupling; electronic spectra; electrochemistry; pi-back bonding; SUBSTITUTED PYRIDINE DERIVATIVES; INFRARED-SPECTRA; ELECTRONIC-STRUCTURES; VIBRATIONAL-SPECTRA; METAL COMPLEXES; LIGAND; DONOR; RINGS; BOND;

D O I：

10.2478/s11696-010-0015-9

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

New 4-cyanopyridine halide and mixed-halide Cu4OBr (n) Cl(6-n)(4-CNpy)(4) complexes (4-CNpy = 4-cyanopyridine, n = 0-6) were synthesised, characterised, and studied by infrared spectra, electronic spectra, and cyclic voltammetry. Infrared spectra revealed donor-acceptor vibrational couplings of the Cu4O, Cu-Cl, and Cu-N stretching vibrations with the in-plane and out-of-plane pyridine ring vibrations. The infrared spectra, electronic spectra, and half-wave potentials correspond to a weak donor and a strong acceptor behaviour of the 4-cyanopyridine ligands and to pi-back bonding, Cu(II)-> pyridine rings. The results were compared with the related pyridine and 4-substituted pyridine complexes.

引用

页码：329 / 338

页数：10

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