The aggregation of the merocyanine dyes, depending of the type of the counterions.
Counterions affect on the substructures formation in the case of the merocyanine dye, 1-methyl-4-[2-(4-hydroxyphenyl)ethenyl)]piridinium] hydrogensquarate both in gas and condense phase. Spectroscopically and structural elucidation of these aggregates have been performed, using solid-state conventional and linear-polarized IR-spectroscopy of oriented colloids as a nematic liquid crystal suspension, UV-vis spectroscopy, HPLC tandem ESI mass spectrometry, 1H and 13C NMR, TGV and DSC. Quantum chemical DFT calculations have been carried out as well. Experimental and theoretical data are compared with analogous ones of corresponding iodide salt of dye studied.
Institut für Umweltforschung, Universität Dortmund, Otto-Hahn-Strasse 6, 44221 Dortmund, Germany.
Tsonko
T
Kolev
Bojidarka B
BB
Koleva
Stanimir
S
Stoyanov
Michael
M
Spiteller
Ivan
I
Petkov
D004583:Electrons; D008958:Models, Molecular; D015394:Molecular Structure; D011744:Pyrimidinones / Q000737:chemistry*; D012997:Solvents; D021241:Spectrometry, Mass, Electrospray Ionization; D013053:Spectrophotometry
D011744:Pyrimidinones; D012997:Solvents; C003954:merocyanine dye