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Structure Evolution of Aromatic-Derivatized Thiol Monolayers on Evaporated Gold
Abstract
The structure of self-assembled monolayers of thiophenols ( I ), benzyl mercaptans ( II ), biphenylthiols ( III ), and 4-biphenylmethanethiols ( IV ) on the surface of Au(111) are compared using cyclic voltammetry, reflection absorption infrared spectroscopy, scanning tunneling microscopy, ellipsometry and contact angle measurement. The results suggest that benyzyl mercaptans and 4-biphenylmethanethiols form closely packed and ordered monolayer, irrespective of the length of a p -alkoxy substituent. For thiophenol and biphenylthiol, a film of lower surface coverage was formed. A long p -alkoxy chain ( n -C 16 H 33 O) increases the intermolecular interaction and leads to a closer packing within the monolayer film. The difference is attributed to the interplay between intermolecular interaction and the bond angle preference at the thiolate head group.
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Cited by
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Dong, L., Yang, X., Zhang, C., Cerjan, B., Zhou, L., Tseng, M. L., Zhang, Y., Alabastri, A., Nordlander, P., & Halas, N. J. (2017) · Nano Letters · doi:10.1021/acs.nanolett.7b02736 · Cited by 274
Metadata
- Authors
- Tao, Y.-T., Wu, C.-C., Eu, J.-Y., Lin, W.-L., Wu, K.-C., & Chen, C.-H.
- Venue
- Langmuir
- Publisher
- American Chemical Society (ACS)
- Published
- 1997-07-01
- Volume
- 13
- Issue
- 15
- Pages
- 4018-4023
- ISSN
- 0743-7463 (ISSN-L)
- 1520-5827
- OpenAlex
- W2077623481
- Cited by
- 291
- References
- 0
- FWCI
- 18.60
- Type
- journal article
- Language
- en
- Open access
- closed
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