title: Spectrophotometric study of molecular complex formation between o-chloranil and a series of methylated pyridines.
abstract: o-Chloranil has been shown to form 1:1 molecular complexes with pyridine and 2-, 3- and 4-picolines in CCl4 medium. Isosbestic points have been found but charge-transfer bands could not be detected. The formation constants of the complexes exhibit a very good linear free energy relationship from which the Hammett p parameter for the complexation reaction is found to be -3.67.
authors.affiliation: Department of Chemistry, The University of Burdwan, Golapbag, India.
authors.forename: Asim Kumar
authors.initials: AK
authors.lastname: Ray
authors.forename: Sumanta
authors.initials: S
authors.lastname: Bhattacharya
authors.forename: Manas
authors.initials: M
authors.lastname: Banerjee
authors.forename: Asok K
authors.initials: AK
authors.lastname: Mukherjee
mesh_terms: D001703:Biophysics / Q000379:methods*; D002251:Carbon Tetrachloride / Q000737:chemistry; D002703:Chloranil / Q000031:analogs & derivatives* / Q000737:chemistry*; D008745:Methylation; D011725:Pyridines / Q000737:chemistry*; D013053:Spectrophotometry / Q000379:methods*
chemical_list: D011725:Pyridines; D002703:Chloranil; D002251:Carbon Tetrachloride; C023666:pyridine; C039499:2-chloranil