高等学校化学学报

高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (S1): 144.

• 研究论文 • 上一篇    下一篇

Atomic Force Microscopy of Azobenzene-Derived Alkanethiolate Monolayers on Gold

TANG Ming, WANG Yong-qiang, CAI Sheng-min, LIU Zhong-fan   

  1. Electrophotonic Intelligent materials Laboratory, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
  • 收稿日期:1995-08-15 出版日期:1995-12-31 发布日期:1995-12-31
  • 基金资助:

    State Science Technology Committee the State Education Committee and the National Natural Science Foundation of China

Atomic Force Microscopy of Azobenzene-Derived Alkanethiolate Monolayers on Gold

TANG Ming, WANG Yong-qiang, CAI Sheng-min, LIU Zhong-fan   

  1. Electrophotonic Intelligent materials Laboratory, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
  • Received:1995-08-15 Online:1995-12-31 Published:1995-12-31
  • Supported by:

    State Science Technology Committee the State Education Committee and the National Natural Science Foundation of China

PDF (PC)

摘要：

Self-assembled monolayer of two azobenzene-derived alkanethiols with different terminal alkyl chain lengths (shortly as C8C3SH and C1C4SH) on gold were studied using atomic force microscopy. The C8C3SH SAMs showed a very regular packing structure with a lattice constant of a=0.57±0.04 nm, b=0.73±0.06 nm and θ=120±10°, mainly domianted by the terminated alkyl chains. On the other hand, the C1C4SH SAMs exhibited a number of different packing domains on the gold surface. The closest packing lattice was a=0.37±0.04 nm, b=0.47±0.02 nm, and θ=,107±6°, most probably representing the aggregation of azobenzene chromophoren. Another two typical lattices observed were a=0.65±0.03 nm, b=0.72±0.03 nm, θ=120±2°, and a=0.47±0.03 nm.b=0.47±0.03 nm.θ=100±10°, respectively. The packing structure of C1C4SH monolayers on gold is believed to be dominated by the azobenzene chromophore.

关键词: Azobenzone-derived alkanethiols, Atomic force microncopy, Azobenzene cliro-mophore, Monolayers on gold

Abstract:

Self-assembled monolayer of two azobenzene-derived alkanethiols with different terminal alkyl chain lengths (shortly as C8C3SH and C1C4SH) on gold were studied using atomic force microscopy. The C8C3SH SAMs showed a very regular packing structure with a lattice constant of a=0.57±0.04 nm, b=0.73±0.06 nm and θ=120±10°, mainly domianted by the terminated alkyl chains. On the other hand, the C1C4SH SAMs exhibited a number of different packing domains on the gold surface. The closest packing lattice was a=0.37±0.04 nm, b=0.47±0.02 nm, and θ=,107±6°, most probably representing the aggregation of azobenzene chromophoren. Another two typical lattices observed were a=0.65±0.03 nm, b=0.72±0.03 nm, θ=120±2°, and a=0.47±0.03 nm.b=0.47±0.03 nm.θ=100±10°, respectively. The packing structure of C1C4SH monolayers on gold is believed to be dominated by the azobenzene chromophore.

Key words: Azobenzone-derived alkanethiols, Atomic force microncopy, Azobenzene cliro-mophore, Monolayers on gold

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