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Synthesis and structural and spectral analysis of new optical Di-Lithium Di-phthalate single crystals

Saravanan Devanathan 1,  Sivakumar Balaraman 2,  Gokulraj Srinivasan 3,  Rameshkumar Gubendiran 4,  Thangaraj Ka 5

1. Dr. Pauls Engineering College, VANUR T.K.,VILLUPURAM DT.,, Villupuram 605109, India
2. Presidency College (PRESIDENCY), Kamarajar Salai, Chennai 600005, India
3. VelTech Dr.RR and Dr.SR Technical University (VELTECH), No.42 VelTech Avadi Road, Chennai 600062, India
4. University College of Engineering Arni, Chennai 632317, India
5. Kongu Engineering college (KONGU), Erode 638052, India

Abstract
A new mixed alkali phthale single crystal namely Di-lithium Di-phthalate (DLDP) were crystallized for the first time and is being reported here. The crystal forms in a monoclinic system with a centrosymmetric space group having the unit cell parameters; a= 17.037(5) Å, b= 5.134(5) Å, and c=21.398(5) Å and α = 90.000(5) °, β = 113.195(5) °, and γ = 90.000(5) ° with Z= 2. 

Spectroscopic measurements such as Fourier transform infrared (FTIR), UV-Vis-NIR analyses were carried out to confirm the functional groups and its optical transmittance. Thermal measurement reveals the stable nature of the compound. Thus wide transparency in the visible region and its centrosymmetric nature favours these crystals for its use as harmonic generators in third order regime. The obtained results have been discussed in detail.

 

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Presentation: Poster at 17th International Conference on Crystal Growth and Epitaxy - ICCGE-17, General Session 5, by Gokulraj Srinivasan
See On-line Journal of 17th International Conference on Crystal Growth and Epitaxy - ICCGE-17

Submitted: 2013-04-15 15:52
Revised:   2013-04-15 15:52