title: Solvatochromic and single crystal studies of 3-(4-bromophenyl)-5-phenyl-4,5-dihydro-1H-pyrazole-1-carbaldehyde.
abstract: The structure of 3-(4-bromophenyl)-5-phenyl-4,5-dihydro-1H-pyrazole-1-carbaldehyde was determined by using X-ray diffraction analysis. Photophysical studies of the title compound were investigated in the solvents with different polarities. The emission spectrum of the compound was recorded in polar solvent DMSO (356 nm). In different solvents the extinction coefficients and quantum yield of the compound vary from 1.88×10(4) to 3.53×10(4) and 0.01 to 0.25, respectively. The ratio of the dipole moment of excited state to the dipole moment of ground state was calculated by using solvatochromic shift methods.
authors: Department of Chemistry, HNB Garhwal University, Srinagar (Garhwal) 246 174, Uttarakhand, India.
authors: Pramod
authors: P
authors: Singh
authors: B S
authors: BS
authors: Rawat
authors: Jagmohan S
authors: JS
authors: Negi
authors: Geeta Joshi nee
authors: GJ
authors: Pant
authors: M S M
authors: MS
authors: Rawat
authors: G C
authors: GC
authors: Joshi
authors: K
authors: K
authors: Thapliyal
mesh_terms: D000447:Aldehydes / Q000138:chemical synthesis / Q000737:chemistry*; D018360:Crystallography, X-Ray; D004121:Dimethyl Sulfoxide / Q000737:chemistry; D054879:Halogenation; D008958:Models, Molecular; D011720:Pyrazoles / Q000138:chemical synthesis / Q000737:chemistry*; D012997:Solvents / Q000737:chemistry; D013050:Spectrometry, Fluorescence
chemical_list: D000447:Aldehydes; D011720:Pyrazoles; D012997:Solvents; D004121:Dimethyl Sulfoxide