Chaudhuri T.,Dr. B.N. Dutta Smriti Mahavidyalaya |
Sukla P.,Bhabha Atomic Research Center |
Mahapatra M.,University of Burdwan |
Rooj B.,University of Burdwan |
And 3 more authors.
Journal of Solution Chemistry | Year: 2012
Absorption and emission spectroscopic studies of (dibenzoylmethanato)boron difluoride (1bf) in various polar and non-polar, protic and aprotic solvents are reported. The solvatochromic shifts of the spectral bands were examined in terms of solvent properties, including donor and acceptor numbers, followed by multilinear regression in which several solvent parameters were simultaneously analyzed. This π-conjugated positively charged system exhibits excellent solvatochromism. Variations in the electronic absorption spectral characteristics of 1bf were studied in solution in the presence of zinc perchlorate. Absorption spectral studies indicate stable complex formation between the zinc ion and 1bf in the ground state in aprotic dipolar benzonitrile rather than in protic polar solvent methanol. Zinc ion binding of 1bf was theoretically rationalized through frontier molecular orbital interaction. © Springer Science+Business Media, LLC 2012.