Photophysical behaviour of 4-(imidazole-1-yl) phenol and its complexation with beta-cyclodextrin in ground and excited states.
This paper mainly dwells on photophysics of 4-(imidazole-1-yl) phenol (IDP) in different solvents and temperatures from the investigations of absorption, emission and laser flash photolysis and also on the nature of complexation with beta-cyclodextrin (CD) in ground and excited states. IDP makes 1:1 inclusion complex with beta-CD in ground, excited singlet and also in triplet states. The orientation of complex could be ascertained as imidazole moiety stays inside the cavity with phenol moiety stays in the bulk. A proposed energy level scheme unveils that vibronic interaction and spin-orbit interaction are found to be active differently in aprotic and protic solvents.
Chowdhury
Papia
P
Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India.
Panja
Subhasis
S
Chakravorti
Sankar
S
D003627:Data Interpretation, Statistical; D007093:Imidazoles / Q000737:chemistry*; D007834:Lasers; D010636:Phenols / Q000737:chemistry*; D010777:Photochemistry; D010782:Photolysis; D013050:Spectrometry, Fluorescence; D013057:Spectrum Analysis; D047392:beta-Cyclodextrins / Q000737:chemistry*
D007093:Imidazoles; D010636:Phenols; D047392:beta-Cyclodextrins; C031215:betadex