Intramolecular charge transfer associated with hydrogen bonding effects on 2-aminobenzoic acid

Spectroscopic study of excited state intramolecular charge transfer in ethyl ester of N,N′-Dimethylaminonaphthyl-(acrylic)-acid

“…Due to close proximity of LE and CT bands in non-polar solvents, two bands appear as single broad band in the emission spectra. Very recently similar observation has been reported for some donor acceptor systems [10,51,52]. The hydrogen bonded clusters of donor acceptor systems favour red shifted CT emission [9][10][11][12].…”

Photo-induced charge transfer emission in (E)-3-(4-dimethylamino-naphthalen-1-yl)-acrylic acid and its use as metal ions fluorosensor

“…Comparing with other similar donoracceptor systems [15][16][17]20] such type of blue shift in the absorption maxima is ascribed to the formation of hydrogenbonded solvated complex in the ground state [28,29]. A possible deprotonation of the carboxylic acid group in polar protic solvents might also be the reason behind this apparent blue shift [30].…”

Effects of solvent, pH and β-cyclodextrin on the fluorescent behaviour of lomustine

“…The position of proton transfer is associated with the change in the charge densities at the respective atom and this is linked to the acid-base properties of the two ionizable groups. Depending upon the positions of these two ionizable groups, the proton transfer may be or may not be solvent-dependent [4].…”