title: Solvatochromic and preferential solvation studies on schiff base 1,4-bis(((2-methylthio)phenylimino)methyl) benzene in binary liquid mixtures.
abstract: The solvatochromic behavior of the 1,4-bis(((2-methylthio) phenylimino)methyl) benzene [BMTPMB] in single solvents and binary mixtures were investigated. Fluorescence spectra show the dual emission due to twisted intramolecular charge transfer (TICT) state. The preferential solvation parameters: local mole fraction, X (2) (L) , solvation index δ(s2), exchange constant K(12) were calculated for the binary mixtures, ACN+MEOH, DMSO+CCl(4) and CCl(4)+1,2 DCE. The dipole moment ratios between ground and excited states were deduced using the solvatochromic shifts of absorption and fluorescence spectra as a function of dielectric constant (ε), refractive index (n) and it was found to be 1.25.
authors.affiliation: Department of Laser Studies, School of Physics, Madurai Kamaraj University, Madurai, 625 021, India. sugiphys@yahoo.co.in
authors.forename: G
authors.initials: G
authors.lastname: Suganthi
authors.forename: S
authors.initials: S
authors.lastname: Sivakolunthu
authors.forename: V
authors.initials: V
authors.lastname: Ramakrishnan
mesh_terms: D000097:Acetonitriles / Q000737:chemistry*; D001555:Benzene Derivatives / Q000737:chemistry*; D002251:Carbon Tetrachloride / Q000737:chemistry*; D004000:Dichloroethylenes / Q000737:chemistry*; D004121:Dimethyl Sulfoxide / Q000737:chemistry*; D007097:Imines / Q000737:chemistry*; D000432:Methanol / Q000737:chemistry*; D015394:Molecular Structure; D012545:Schiff Bases / Q000737:chemistry; D012997:Solvents / Q000737:chemistry; D013050:Spectrometry, Fluorescence
chemical_list: C556864:1,4-bis(((2-methylthio)phenylimino)methyl)benzene; D000097:Acetonitriles; D001555:Benzene Derivatives; D004000:Dichloroethylenes; D007097:Imines; D012545:Schiff Bases; D012997:Solvents; D002251:Carbon Tetrachloride; C035384:1,2-dichloroethylene; D000432:Methanol; D004121:Dimethyl Sulfoxide; C032159:acetonitrile
references.citation: Spectrochim Acta A Mol Biomol Spectrosc. 2004 Jun;60(7):1453-7
references.pmid: 15147687
references.citation: Spectrochim Acta A Mol Biomol Spectrosc. 2009 Apr;72(3):490-5
references.pmid: 19056310
references.citation: Spectrochim Acta A Mol Biomol Spectrosc. 2009 Sep 1;73(5):916-21
references.pmid: 19477678
references.citation: Spectrochim Acta A Mol Biomol Spectrosc. 2008 Oct;70(5):1073-8
references.pmid: 18343186
references.citation: Spectrochim Acta A Mol Biomol Spectrosc. 2003 Jan 15;59(2):393-403
references.pmid: 12685913
references.citation: J Fluoresc. 2007 Sep;17(5):528-39
references.pmid: 17597383
references.citation: Spectrochim Acta A Mol Biomol Spectrosc. 2003 Jun;59(8):1681-8
references.pmid: 12736053
references.citation: Spectrochim Acta A Mol Biomol Spectrosc. 2004 Mar;60(4):951-8
references.pmid: 15036108