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Novel Materials for Second Harmonic Generation - Salts of L-Valine and Selenic Acid

Published online by Cambridge University Press:  01 February 2011

Ivan Němec ,
Robert Gyepes ,
Zdeněk Miěka  and
František Trojánek
Ivan Němec
Affiliation:
Department of Inorganic Chemistry, Charles University of Prague, Hlavova 2030, Prague 2, 128 40, Czech Republic.
Robert Gyepes
Affiliation:
Department of Inorganic Chemistry, Charles University of Prague, Hlavova 2030, Prague 2, 128 40, Czech Republic.
Zdeněk Miěka
Affiliation:
Department of Inorganic Chemistry, Charles University of Prague, Hlavova 2030, Prague 2, 128 40, Czech Republic.
František Trojánek
Affiliation:
Faculty of Mathematics and Physics, Charles University of Prague, Ke Karlovu 3, Prague 2, 121 16, Czech Republic.
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Abstract

The X-ray structural analysis of di-L-valine selenate monohydrate has been carried out (P21, a=6.181(2), b=18.675(3), c=15.342(4)Å β=90.14(2)°, V=1770.8(7) Å3, Z=4, R=0.0532 for 3057 observed reflections). The crystal structure is formed by selenate anions, L-valinium cations and water molecules (in the ratio of 1:2:1) interconnected by a system of hydrogen bonds. The FTIR (298-90 K temperature range) and FT Raman spectra were recorded and interpreted. DSC measurements were carried out in the temperature range 95-363 K. Quantitative SHG measurements of di-L-valine selenate monohydrate and tri-L-valine selenate were carried out on powdered samples.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 725: Symposium P – Organic and Polymeric Materials and Devices-Optical, Electrical, and Optoelectronic Properties , 2002 , P9.2
Copyright
Copyright © Materials Research Society 2002

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