Moumita Chakraborty et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 97, 722-727 (2012-08-14)
Absorption and emission spectroscopic studies, in combination with FTIR measurements, were carried out for 7-hydroxycoumarin (7HC) and nanocolloidal dispersion of silica. Attempt has been made to identify the characteristics of excited state H-bond formed between colloidal silica and 7HC in