Vivek V

Department of Multimedia

School of Design

Vellore Campus

Sudhakar N

Department of Energy and Power Electronics

School of Electrical Engineering

Kalainathan S

Department of Physics

School of Advanced Sciences

Jauhar R.M

NizamMohideen M

Murugakoothan P.

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Journal of Thermal Analysis and Calorimetry

Self-assembled supramolecular synthons of 2,6 diaminopyridinium tosylate

A new organic nonlinear optical material isonicotinamidium picrate, with excellent nonlinear optical activity and thermal stability has been reported.

RSC Advances

A new organic NLO material isonicotinamidium picrate (ISPA): crystal structure, structural modeling and its physico-chemical properties

Bulk growth, optical, thermal, dielectric and mechanical studies of nonlinear optical crystal

Journal of Crystal Growth

Crystal growth, structural, optical and dielectric studies of ammonium p-toluenesulfonate

The synthesis, growth and structure of a novel organic third order nonlinear optical (NLO) crystal namely, N,N,N′,N′- tetramethylethylenediammonium-bis(4-nitrophenolate) (TMEDA4NP) is presented. The solubility of the compound in methanol and acetonitrile solvents is compared and the growth conditions were optimized. Single crystals of TMEDA4NP were grown in acetonitrile solvent using a slow evaporation technique at 303 K. The crystal structure elucidated from single crystal X-ray diffraction analysis at 293 K showed that the title compound crystallizes in a monoclinic crystal system with space group C2/c. The molecular structure was further confirmed by modern spectroscopic techniques like FT-IR, FT-NMR, UV-Vis-NIR and Fluorescence. The transparency in the visible region and hence the feasibility of the crystal for NLO applications was established from UV-Vis-NIR study. Fluorescence emission of the crystal also revealed that the title compound can serve as a photoactive material. The protonation of TMEDA4NP was unambiguously confirmed from the NMR data. Thermo gravimetric analysis (TGA) showed that TMEDA4NP was thermally stable up to 110 °C. The mechanical strength of the crystal was assessed by a Vickers microhardness tester. Etching studies were carried out on the (100) plane of the as grown surface of the crystal. Third order susceptibility measured using the Z scan technique by employing a picosecond Nd-YAG laser indicates that the title compound can serve as a promising candidate for third order NLO applications. This journal is © the Partner Organisations 2014.

Self-assembled supramolecular structure of N,N,N′,N′- tetramethylethylenediammonium-bis-(4-nitrophenolate): Synthesis, single crystal growth and photo physical properties

The Winnower

I Would Much Rather Write Computer Programs

Journal	Data powered by TypesetJournal of Thermal Analysis and Calorimetry
Publisher	Data powered by TypesetSpringer Science and Business Media LLC
ISSN	1388-6150
Open Access	0