Aging effects on molecular orientation, structure, and morphology in Langmuir-Blodgett films of 2-dodecyl, 2-pentadecyl-, and 2-octadecyl-7,7,8,8- tetracyanoquinodimethane studied by infrared and ultraviolet-visible spectroscopy and atom force microscopy

Article Abstract:

Increasing interest is being shown in Langmuir-Blodgett (LM) films with a tetracyanoquinodimethane chromophore (TCNQ) because some of them are highly conductive. The structural characterization of one-layer LB films of alkyl-TCNQ is explored.

Thin films, Chemistry, Physical and theoretical, Physical chemistry

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Infrared and ultraviolet-visible spectroscopic studies on premelting behaviour of one-and eleven-layer Langmuir-Blodgett films of 2-dodecyl-, 2-pentadecyl-, and 2-octadecyl-7,7,8,8-tetracyanoquinodimethane

Article Abstract:

The infrared (IR) and ultraviolet-visible (UV-vis) spectroscopies are used to investigate the premelting behavior of one- and eleven-layer Langmuir-Blodgett (LB) films of 2-dodecyl-, 2-pentadecyl-, and 2-octadecyl-7,7,8,8-tetracyanoquinodimethane (dodecyl-TCNQ, pentadecyl-TCNQ, and octadecyl-TCNQ). The corresponding results are discussed.

Infrared spectroscopy, Ultraviolet spectroscopy

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Premelting behavior of a Langmuir-Blodgett film of dioctadecyldimethylammonium-Au(dmit)2 salt

Article Abstract:

Premelting behavior of a Langmuir-Blodgett (LB) film of dioctadecyldimethylammonium-Au(dmit)2 (2C18-Au(dmit)2) salt is studied by means of infrared transmission spectroscopy . Two bands due to the CH2 antisymmetric stretching and symmetric stretching modes are used to monitor the conformation and orientation of a hydrocarbon chain in the 2C18-Au(dmit)2 LB film.

Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Gold, Electric properties, Hydrocarbons, Chemical properties

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