Microwave Assisted Synthesis, Physicochemical, Photophysical, Single Crystal X-ray and DFT Studies of Novel Push-Pull Chromophores

Journal of Fluorescence
Salman A KhanKamlesh Sharma

Abstract

Two push-pull chromophores were synthesized by knoevenagel condensation under microwave irradiation. The structure of synthesized chromophores were established by spectroscopic (FT-IR, (1)H NMR, (13)C NMR, EI-MS) and elemental analysis. Structure of the chromophores was further conformed by X-ray crystallographic. UV-Vis and fluorescence spectroscopy measurements provided that chromophores were good absorbent and fluorescent properties. Fluorescence polarity studies demonstrated that chromophores were sensitive to the polarity of the microenvironment provided by different solvents. Physicochemical parameters, including singlet absorption, extinction coefficient, stokes shift, oscillator strength, dipole moment and flurescence quantum yield were investigated in order to explore the analytical potential of the synthesized chromophores. In addition, the total energy, frontier molecular orbitals, hardness, electron affinity, ionization energy, electrostatic potential map were also studied computationally by using density functional theoretical method.

References

Feb 24, 2001·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·S KumarR C Rastogi
Dec 25, 2007·Acta Crystallographica. Section A, Foundations of Crystallography·George M Sheldrick
Oct 12, 2010·Ultrasonics Sonochemistry·Qing LiuZhen Li
May 18, 2012·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Abdullah M AsiriSalman A Khan
Jun 18, 2014·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Salman A KhanSamy A El-Daly

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