Studies on crystal growth, vibrational, optical, thermal and dielectric properties of new organic nonlinear optical crystal: Bis (2,3-dimethoxy-10-oxostrychnidinium) phthalate nonahydrate single crystal.
In this paper, we report the synthesis, growth and characterization of a new organic NLO single crystal of Bis (2,3-dimethoxy-10-oxostrychnidinium) phthalate nonahydrate, for the first time. The single crystal XRD study reveals that the crystal belongs to monoclinic system. The molecular structure and the nature of the vibrations were identified by vibrational and NMR spectroscopic studies. The UV absorption edge was found to be 330nm with a wide optical transmittance window covering the visible region. The crystal exhibits physicochemical stability upto 90.56°C. Various thermodynamic parameters were calculated from the TG data. The Kurtz powder second harmonic generation revealed that the SHG efficiency of the grown crystal was about 2.8 times that of KDP and was found to be phase matchable. The measured low value of birefringence indicates its suitability for NLO devices. The PL spectrum exhibited two peaks (355 and 406nm) due to the donation of protons from carboxylic acid to quartenium nitrogen. The dielectric behavior of the grown crystal was analyzed for different frequencies at different temperatures.
Department of Physics, Presidency College, Chennai 600 005, India.
P
P
Krishnan
Department of Physics, Presidency College, Chennai 600 005, India.
K
K
Gayathri
Department of Chemistry, Government Arts College, Chidambaram 608 002, India.
P R
PR
Rajakumar
Department of Physics, PSG College of Arts and Science, Coimbatore 641 014, India.
V
V
Jayaramakrishnan
St. Peter's University, Avadi, Chennai 600 054, India.
S
S
Gunasekaran
Department of Physics, Presidency College, Chennai 600 005, India. Electronic address: anbu24663@yahoo.co.in.
G
G
Anbalagan
D003460:Crystallization; D018360:Crystallography, X-Ray; D004055:Differential Thermal Analysis; D049449:Luminescence; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D010795:Phthalic Acids / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman; D013818:Thermogravimetry
D010795:Phthalic Acids; C032279:phthalic acid
Dielectric studies; Growth from solutions; Nonlinear optical properties; Organic compounds; Vibrational spectral analysis