In situ IR monitoring of complexation reaction between 2,6-bis(3,5-dimethylpyrazoyl)pyridine and some metal ions

Turhan O., Kurtaran R., Namli H.

VIBRATIONAL SPECTROSCOPY, vol.56, no.2, pp.111-115, 2011 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 56 Issue: 2
  • Publication Date: 2011
  • Doi Number: 10.1016/j.vibspec.2011.01.002
  • Journal Name: VIBRATIONAL SPECTROSCOPY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.111-115
  • Keywords: Complexation in solution, FT-IR, Pyrazoyl complexes, bdmpp, Background defining, M/L ratio, TERPYRIDINE ANALOGS, LIGANDS, SPECTROSCOPY, KINETICS
  • Akdeniz University Affiliated: No

Abstract

In situ complexation reactions between 2,6-bis(3,5-dimethylpyrazoyl)pyridine (bdmpp) and some transition metals (Cu(2+), Co(2+) and Ni(2+)) were studied with a new method in liquid cell using FT-IR. In this method, the spectrum of the solution of ligand was defined as a background, and then the changes in the FT-IR spectra by the addition of the metal salts were investigated. This method allows one to obtain the spectra of the ligand-metal complex before yielding the solid-state product. Complexation ratios (M/L) of these metals with bdmpp were found 1/1, 1/2 and 1/2, for Cu, Co and Ni, respectively. Studying with Mg(2+) and Ca(2+) ions showed that there were no interaction between bdmpp and these metal ions in methanol. (C) 2011 Elsevier B.V. All rights reserved.