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Published on: October 24, 2017
Synthesis, physicochemical and optical characterization of novel fluorescing complex: o-phenylenediamine-benzoin
Y Dwivedi1, Shiva Kant, S B Rai
1Laser and Spectroscopy Laboratory, Physics Department, Banaras Hindu University, Varanasi, India 221005.
Abstract:
The complex of o-phenylenediamine (o-PDA) and benzoin (BN) was synthesized adopting solid state reaction by mixing of their melt together followed by chilling. The phase diagram study shows the formation of a complex in 1:1 molar ratio with congruent melting point and two eutectics lying on either side of complex. The formation of complex was confirmed using the FTIR, NMR, mass spectroscopy, powder XRD and DSC studies. The optical properties of the parent component, their complex and few other compositions nearby the complex were studied using absorption and laser luminescence techniques. The significantly higher green/yellow emission was noted with newly synthesized complex as compared to that of their parents as well as other compositions of o- PDA and BN.
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