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Title: Structural and optical characterization on solution grown methyl p-hydroxybenzoate single crystals
Authors: Vijayan, N
Bhagavannarayana, G
Gopalakrishnan, R
Ramasamy, P
Issue Date: Jan-2007
Publisher: CSIR
IPC Code: Int. Cl.⁸ C30B7/02
Abstract: The optical quality single crystals of methyl p-hydroxybenzoate (p-MHB) have been successfully grown by slow evaporation solution growth technique at 33ºC. The grown single crystals have been characterized using different instrumen-tation methods. The structural perfection has been analysed by using high resolution X-ray diffractometry, which shows that the crystalline perfection is reasonably good except with two low angle internal structural boundaries. That may be due to entrap-ment of impurities and solvent molecules during growth. The crystal system is monoclinic with calculated lattice parameter values: a = 13.977 Å; b = 15.774 Å; c = 12.684 Å; ⍺ = ϒ = 90; β = 131.97. The presence of carbon molecules has been identi-fied from ¹³C NMR. The laser damage threshold and second har-monic generation efficiency have been studied. The second har-monic generation conversion efficiency ratio of p-MHB to KDP has been found to be around 1.29:1.
Page(s): 70-73
ISSN: 0376-4710
Appears in Collections:IJC-A Vol.46A(01) [January 2007]

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