A Preparation and Spectroscopic Study for Some Copper and Oxovanadium Complexes of EnaminonesDhiyaa Kareem Muslem*
Sciences Department, The Open Educational College, Thi-Qar, Iraq
- Corresponding Author:
- Dhiyaa Kareem Muslem
The Open Educational College
E-mail: [email protected]
Received Date: August 05, 2015; Accepted Date: August 06, 2015; Published Date: August 13, 2015
Citation: Muslem DK (2015) A Preparation and Spectroscopic Study for Some Copper and Oxovanadium Complexes of Enaminones. Chem Sci J 6:103. doi:10.4172/2150-3494.1000103
Copyright: © 2015 Muslem DK. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Four copper (II) and oxovanadium (IV) complexes of some enaminones derived from acetylacetone or trifluoroacetylacetone with methylamine have been prepared and investigated by physicochemical methods. The results have been proposed that the copper and oxovanadium complexes are in (1:2) (metal:ligand) composition and they have a square planer and square pyramidal structure, respectively. Lewis Acid-Base interaction has been studied for the prepared complexes as acceptors with pyridine as donor, and all the reactions were found as 1:1 interactions. Equilibrium consonants (Keq) for these interactions in chloroform have been measured using visible technique at different temperature. These values are within the range 6.58-16.43 L.mol-1. Thermodynamics functions ΔH, ΔG and ΔS for these interactions have also been measured. The ΔH values were within the range (-22.0 to +15.25) KJ.mol-1. The ΔG values were within the range of (−5.47 to −6.62) KJ.mol-1 while the ΔS within −55.47 to 73.38 J.mol-1.K-1.