title: An NMR study of merocyanine-type dyes derived from barbituric acid.
abstract: The 13C NMR of two solvatochromic dyes derived from a barbituric acid acceptor and dimethylaminophenyl donor fragments, compound 1 and the related merocyanine 2, were recorded in various solvents. The observed chemical-shift variations were used to interpret their structural differences and solvatochromic behavior in solution.
authors.affiliation: Facultad de Química y Biología, Universidad de Santiago, Casilla 40, Correo 33, Santiago, Chile. mcaroli@lauca.usach.cl
authors.forename: Marcos Caroli
authors.initials: MC
authors.lastname: Rezende
authors.forename: Patricio
authors.initials: P
authors.lastname: Flores
authors.forename: Juan
authors.initials: J
authors.lastname: Guerrero
authors.forename: Luis
authors.initials: L
authors.lastname: Villarroel
mesh_terms: D001463:Barbiturates / Q000737:chemistry*; D004396:Coloring Agents / Q000737:chemistry*; D004563:Electrochemistry; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D011744:Pyrimidinones / Q000737:chemistry*; D012996:Solutions
chemical_list: D001463:Barbiturates; D004396:Coloring Agents; D011744:Pyrimidinones; D012996:Solutions; C003954:merocyanine dye; C032232:barbituric acid