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The photophysical properties of 1-acetoxy-8-hydroxy-1,4,4a,9a-tetrahydroanthraquinone (HTHQ) have been investigated by steady state and time resolved spectroscopy in combination with quantum chemical calculations. The effects of various parameters such as the nature of solvent and pH of the medium on the spectral properties confirm the existence of different neutral and ionic species in the ground...
The photophysical behavior of 3-hydroxy-2-napthaldehyde (HN32) has been investigated on the basis of steady state absorption and fluorescence spectroscopy, time-resolved emission spectroscopy and quantum chemical calculations. In the ground state, depending on the nature of solvents, HN32 exists as closed (intramolecular hydrogen bonded), open and intermolecular hydrogen bonded conformers. The closed...
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