Khan Salman A, Asiri Abdullah M, Aqlan Faisal M S
Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia.
Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia.
J Fluoresc. 2016 Nov;26(6):2133-2140. doi: 10.1007/s10895-016-1909-x. Epub 2016 Oct 6.
(2E)-3-[4-(dimethylamino)phenyl]-1-(2-hydroxyphenyl)prop-2-en-1-one (DPHP) was synthesized by the reaction 4(dimethylamino) benzaldehyde with 1-(2-hydroxyphenyl) ethanone under microwave irradiation. Structure of DPHP was conformed by H and C NMR, FT-IR, EI-MS spectral studies and elemental analysis. The electronic absorption and fluorescence spectra of DPHP have been studied in solvents of different polarities, and the data were used to study the solvatochromic properties such as extinction coefficient, stokes shift, oscillator strength, transition dipole moment, fluorescence quantum yield and photochemical quantum yield. The absorption maximum and fluorescence emission maximum was observed red shift when increase solvent polarity n-Hexane to DMF. DPHP undergoes solubilization in different micelles and may be used as a probe and quencher to determine the critical micelle concentration (CMC) of CTAB and SDS.
通过4-（二甲氨基）苯甲醛与1-（2-羟基苯基）乙酮在微波辐射下反应合成了（2E）-3-[4-（二甲氨基）苯基]-1-（2-羟基苯基）丙-2-烯-1-酮（DPHP）。通过氢和碳核磁共振、傅里叶变换红外光谱、电子轰击质谱光谱研究及元素分析确定了DPHP的结构。在不同极性的溶剂中研究了DPHP的电子吸收光谱和荧光光谱，并利用这些数据研究了诸如消光系数、斯托克斯位移、振子强度、跃迁偶极矩、荧光量子产率和光化学量子产率等溶剂化显色性质。当溶剂极性从正己烷增加到N，N-二甲基甲酰胺时，观察到吸收最大值和荧光发射最大值发生红移。DPHP可在不同的胶束中增溶，并可用作探针和猝灭剂来测定十六烷基三甲基溴化铵和十二烷基硫酸钠的临界胶束浓度（CMC）。
