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|標題:||Langmuir-Blodgett films of palladium(II)-imidazole liquid crystals||作者:||Lo, Y.S.
|關鍵字:||self-assembly;metal-containing liquid crystal;palladium(II)-imidazole;complexes;Langmuir-Blodgett films;brewster angle microscopy;x-ray;diffraction;atomic-force microscopy;air/water interface;phase-transition;ultrathin films;monolayers;phthalocyanine;spectroscopy;organization;copper(ii);morphology||Project:||Thin Solid Films||期刊/報告no：:||Thin Solid Films, Volume 516, Issue 6, Page(s) 1175-1182.||摘要:||
The self-assembly of organic- inorganic compounds of palladium(II)-bis(N-long chain substituted imidazole) dichloride complexes has been investigated. The presence of a hydroxyl group at the 2-position of alkyl chain induced liquid crystal properties. Molecular ordering of Pd(II)imidazole complexes upon mechanical compression at the air/water interface is studied by surface pressure-area (pi-A) isotherms and Brewster angle microscope. Incorporation of lateral hydroxyl group in the alkyl chain enhances the stability of the films via intramolecular hydrogen bonding interactions. Langmuir-Blodgett (LB) films formed by these compounds were studied by various techniques to characterize their surface morphology, hydrophilic/hydrophobic property, surface functionalities and interlayer spacings. U-shaped interdigitated assembling, good crystallinity and in-air stability of these LB films were demonstrated. (c) 2007 Elsevier B.V. All rights reserved.
|Appears in Collections:||物理學系所|
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