title: Fluorescence quenching of organic molecule by insulator.
abstract: A new kind of fluorophore 2-(4-fluorophenyl)-1-phenyl-1H-benzo[d]imidazole (FPPBI) has been synthesized and characterized by (1)H NMR, (13)C NMR, mass spectral studies and single crystal XRD. The energy transfer from FPPBI to Al2O3 nanocrystals has been studied by absorption, fluorescence and lifetime spectroscopic methods. The association between nanoparticles and FPPBI is explained from both absorption and fluorescence quenching data. The distance between FPPBI and Al2O3 as well as the critical energy transfer distance has been deduced.
authors.affiliation: Department of Chemistry, Annamalai University, Annamalainagar 608 002, Tamilnadu, India.
authors.forename: C
authors.initials: C
authors.lastname: Karunakaran
authors.forename: J
authors.initials: J
authors.lastname: Jayabharathi
authors.forename: K
authors.initials: K
authors.lastname: Jayamoorthy
mesh_terms: D000042:Absorption; D000537:Aluminum Oxide / Q000737:chemistry*; D001562:Benzimidazoles / Q000737:chemistry*; D018360:Crystallography, X-Ray; D005453:Fluorescence; D005456:Fluorescent Dyes / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D053758:Nanoparticles / Q000737:chemistry*; D013050:Spectrometry, Fluorescence
chemical_list: D001562:Benzimidazoles; D005456:Fluorescent Dyes; D000537:Aluminum Oxide