Acta Phys. -Chim. Sin. ›› 1999, Vol. 15 ›› Issue (07): 657-661.doi: 10.3866/PKU.WHXB19990715

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Fbrication and Structural Evaluation of Self-assembled Monolayer of Quinoline Derivative on Gold

Zhang Hao-Li, Zhang Hua, Zhang Jin, Wu Bin, Liu Zhong-Fan, Li Hu-Lin   

  1. Department of Chemistry,Lanzhou University,Lanzhou 730000|Centre for Intelligent Materials Research(CIMR),College of Chemistry and Molecular Engineering,Peking University,Beijing 100871
  • Received:1998-11-10 Revised:1998-12-28 Published:1999-07-15
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Abstract:

 A novel quinoline derivative 6-(10-thiol-decaoxy ) quinoline (abbreviated as QC10SH )was synthesized and its self-assembled monoayers (SAMs) were prepared on gold for the first time. Wettability measurement on QC10SH SAM reveals a hydrophilic surface. RA-IR researches suggests that the SAM has formed highly-organized and closely-packed structure. A method is developed for quanitatively evaluating the molecular orientation in monolayer. By this method the result that the twisting and tilting angles of QC10SH molecule in SAM are 50±4° and 24±3°respectively has been obtained.

Key words: Quinoline derivative, Self-assemble monolayer(SAM), Reflectance-absorption infrared(RA-IR) spectroscopy, Molecular orientation