@article { author = {Golchoubian, Hamid and Arabahmadi, Shahrbanoo}, title = {Solvatochromic Properties of Heteroleptic Copper(II) Complexes Containing N,N,N',N'-Tetramethylethylenediamine and 2-Aacetylcyclopentanone Ligands}, journal = {Inorganic Chemistry Research}, volume = {2}, number = {1}, pages = {191-201}, year = {2018}, publisher = {Iranian Chemical Society}, issn = {2538-1865}, eissn = {2538-1865}, doi = {10.22036/icr.2017.56071.1032}, abstract = {Three new heteroleptic copper(II) complexes, [(tmen)Cu(dike)H2O]X where tmen = N,N,N',N'-tetramethylethylenediamine, dike = 2-acetylcyclopentanone anion and X= ClO4- (1), Cl- (2) and Br- (3) are prepared and characterized by elemental analyses, molar conductance measurements and IR and UV-Vis spectroscopy techniques. The complex 1 is fairly soluble in various organic solvents and demonstrates distinctive solvatochromism. However, the solubility of complexes 2 and 3 is less than 1 and their color changes are limited to polar solvents. The influence of the solvent polarity and counter ions on the wave length maxima, max values of the d-d bands of the complexes have been investigated by visible spectroscopy. A multi-parametric equation has been utilized to explain the solvent effect on the d-d transition of [(tmen)Cu(dike H2O)]ClO4 using SPSS/PC software. The stepwise multiple linear regression (SMLR) method demonstrated that the donor power of the solvent plays the most important role in the observed negative solvatochromism of the compound.}, keywords = {Heteroleptic,Diketonate,Ethylendiamine,Copper(II),Solvatochromism}, url = {https://www.inorgchemres.org/article_56965.html}, eprint = {https://www.inorgchemres.org/article_56965_900bcf63f0825016a652a92379e1fe26.pdf} }