P. Ruanwas, T. Kobkeatthawin, S. Chantrapromma
Apr 1, 2010
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Journal
Synthetic Metals
Abstract
Abstract In the present investigation, 2-[( E )-2-(4-ethoxyphenyl)ethenyl]-1-methylquinolinium 4-substituted benzenesulfonate (X = CH 3 ( 1 ), X = OCH 3 ( 2 ), X = Cl ( 3 ), X = Br ( 4 )) have been synthesized and characterized by 1 H NMR, UV–Vis and FT-IR spectroscopy methods. In addition compound 3 was also characterized by single crystal X-ray diffraction (XRD) and found that it crystallized out in the monoclinic space group P 2 1 with cell parameters, a = 9.8072(9) A, b = 6.4848(5) A, c = 19.4405(16) A, α = 90°, β = 103.421(5)°, γ = 90°, z = 2 and V = 1202.61(17) A 3 . The nonlinear optical absorption of the samples has been studied at 532 nm using 5 ns laser pulses, employing the open-aperture z -scan technique. It is found that some of the samples are potential candidates for optical limiting applications.