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.
Kolev
Tsonko
T
Institut für Umweltforschung, Universität Dortmund, Otto-Hahn-Strasse 6, 44221 Dortmund, Germany.
Koleva
Bojidarka B
BB
Stoyanov
Stanimir
S
Spiteller
Michael
M
Petkov
Ivan
I
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