Acta Phys. -Chim. Sin. ›› 2013, Vol. 29 ›› Issue (11): 2300-2307.doi: 10.3866/PKU.WHXB201310091

• THERMODYNAMICS, KINETICS, AND STRUCTURAL CHEMISTRY • Previous Articles     Next Articles

Synthesis, Characterization and Properties of Terminal Alkynylate Modified Salen-Type Complexes

SONG Han, WANG Na-Na, LI Yue, RUAN Wen-Juan   

  1. Department of Chemistry, Nankai University, Tianjin 300071, P. R. China
  • Received:2013-07-15 Revised:2013-10-07 Published:2013-10-30
  • Contact: RUAN Wen-Juan E-mail:wjruan@nankai.edu.cn
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (20671053).

Abstract:

We synthesized two terminal alkynyl modified Salen ligands, H2Ln, and their metal complexes, MLn (n=1, 2, M=Ni, Cu, Mn). The ligands and complexes were characterized by 1H nuclear magnetic resonance (1H NMR) spectroscopy, electrospray ionization mass spectrometry (ESI-MS), elemental analysis, Fourier transform infrared (FT-IR) spectroscopy, and ultraviolet visible (UV-Vis) spectroscopy. The redox properties of the compounds were investigated with cyclic voltammetry (CV). Imine redox peaks appeared in the CV curves of all the ligands except H2L1. The Ni and Cu complexes underwent two single electron redox processes in the scanning range. Mn complexes gave a pair of quasi-reversible voltammetric peaks, which corresponded to the redox process between Mn(III)/Mn(II). Molar conductivity measurements of the complexes showed that they were all weak electrolytes with certain conductivity.

Key words: Salen-type complex, Terminal alkynyl, Synthesis and characterization, Spectrum property, Cyclic voltammetry

MSC2000: 

  • O641