Issue 11, 1997

Synthesis, Langmuir–Blodgett deposition and optical characterization of a 4-acetalphenyl-substituted C60-pyrrolidine derivative C60(C12H17NO2 )

Abstract

A new 4-acetalphenyl-substituted C 60 -pyrrolidine derivative, C 60 (C 12 H 17 NO 2 ) (1), has been prepared and its Langmuir films, with and without 22-tricosenoic acid [CH 2 [double bond, length as m-dash]CH–(CH 2 ) 20 CO 2 H (TA)], at the air/water interface have been investigated. Pure 1 forms monolayers more easily than the parent molecule, C 60 , and can be transferred onto solid substrates to form Langmuir–Blodgett (LB) films. The mixed Langmuir films of 1 and TA were transferred onto hydrophilically pretreated quartz, glass substrates and silicon wafers. Reflectometric measurement of a 63-layer 1:2 mixed film on a silicon wafer using an He–Ne laser (λ = 632.8 nm) provided a film thickness and refractive index of 171 nm and 1.73, respectively. Weak second harmonic generation (SHG) from LB monolayers of pure 1 and 1:2 and 1:4 mixed LB monolayer films of 1 and TA was observed. The second-order susceptibilities, χ pp (2) , were evaluated to be in the range (4–6)×10 −9 esu.

Article information

Article type
Paper

J. Chem. Soc., Faraday Trans., 1997,93, 2077-2081

Synthesis, Langmuir–Blodgett deposition and optical characterization of a 4-acetalphenyl-substituted C60-pyrrolidine derivative C60(C12H17NO2 )

D. Zhou, G. J. Ashwell, R. Rajan, L. Gan, C. Luo and C. Huang, J. Chem. Soc., Faraday Trans., 1997, 93, 2077 DOI: 10.1039/A608570I

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