TY - JOUR
T1 - An investigation of the equilibrium between various forms of oxazine-170 by means of absorption and fluorescence spectroscopy
AU - Gvishi, Raz
AU - Reisfeld, Renata
PY - 1989/3/31
Y1 - 1989/3/31
N2 - The quite different spectra of the protonated forms C+ (and C2+ and C3+ in sulphuric acid) and the neutral oxazine-170 molecule are studied in water, methanol, ethanol, tetrahydrofuran and chloroform and the acidity constant pKa of C+ measured. In aqueous solution, C+ shows a marked propensity to dimerize, like rhodamine cations. C+ shows favorable laser characteristics which are dependent on the detailed relative concentrations, temperature and solvent.
AB - The quite different spectra of the protonated forms C+ (and C2+ and C3+ in sulphuric acid) and the neutral oxazine-170 molecule are studied in water, methanol, ethanol, tetrahydrofuran and chloroform and the acidity constant pKa of C+ measured. In aqueous solution, C+ shows a marked propensity to dimerize, like rhodamine cations. C+ shows favorable laser characteristics which are dependent on the detailed relative concentrations, temperature and solvent.
UR - http://www.scopus.com/inward/record.url?scp=0000094179&partnerID=8YFLogxK
U2 - 10.1016/S0009-2614(89)87116-7
DO - 10.1016/S0009-2614(89)87116-7
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AN - SCOPUS:0000094179
SN - 0009-2614
VL - 156
SP - 181
EP - 186
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 2-3
ER -