Document Details

Document Type : Article In Conference 
Document Title :
SYNTHESIS AND SPECTROSCOPIC STUDIES OF SOME FLUORESCENTPYRAZOLINE DERIVATIVES
SYNTHESIS AND SPECTROSCOPIC STUDIES OF SOME FLUORESCENTPYRAZOLINE DERIVATIVES
 
Subject : Chemistry 
Document Language : English 
Abstract : Seven fluorescent pyrazolines were synthesized. pyrazoline derivatives 5a-g was obtained by cyclization of chalcones 3a-g with phenylhydrazine using various synthetic methods including traditional method and green methodologies such as microwave heating and ultrasound irradiation. The reaction time, product yields are improved using the green methods. The structures were established based on IR spectra, 1H-, 13C NMR, elemental analysis, X-Ray Crystal Structure Determination, UV visible spectra and fluorescence spectra.). The seven compounds showed an excellent fluorescence in various solvents. The fluorescence properties such as quantum yield were measured. The substitution on both aromatic rings showed a remarkable influence on the fluorescence properties, this was rationalized using theoretical calculations of the charge density of both HOMO and LUMO orbitals. This new pyrazolines are potential fluorescent markers for biological systems. 
Conference Name : Taibah International Chemistry Conference – 2009 
Duration : From : 27/3/1430 AH - To : 23/3/1430 AH
From : 23/3/2009 AD - To : 25/3/2009 AD 
Publishing Year : 1430 AH
2009 AD 
Article Type : Article 
Conference Place : Al-Madinah Al-Munawwarah, Saudi Arabia 
Organizing Body : Faculty of Science, Taibah University 
Added Date : Sunday, October 25, 2009 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
خديجة محمد خلف الزائديKhadijah M. Al-ZaydiResearcherDoctoratealzaydi_kh@yahoo.com
عبدالله محمد أحمد عسيريAbdullah Mohamed AsiriResearcherDoctorateaasiri2@kau.edu.sa
Manal ShalabiManal ShalabiResearcherDoctorate 
Abdullah G. Al-SehemiAbdullah G. Al-SehemiResearcherDoctorate 

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