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http://dx.doi.org/10.5012/bkcs.2007.28.12.2445

Formation and Annealing Effect of Tolanethioacetate Self-Assembled Monolayers on Au(111)  

Jeong, Young-Do (Department of Chemistry, Hanyang University)
Han, Jin-Wook (Department of Chemistry, Hanyang University)
Kim, Nak-Joong (Department of Chemistry, Hanyang University)
Lee, Young-Il (Department of Chemistry, Ulsan University)
Lee, Chang-Jin (Advanced Material Division, Korea Research Institute of Chemical Technology)
Hara, Masahiko (Emergent Functions Asian Collaboration Laboratory, Frontier Research System, RIKEN)
Noh, Jaeg-Eun (Department of Chemistry, Hanyang University)
Publication Information
Bulletin of the Korean Chemical Society / v.28, no.12, 2007 , pp. 2445-2448 More about this Journal
Abstract
Self-assembled monolayers (SAMs) were formed by adsorption of thioacetyl-terminated tolanethioacetate (TTA) on Au(111) in a 0.5-mM ethanol solution after one day immersion at room temperature. Molecular-scale STM imaging revealed that the TTA SAMs were composed of two mixed phases; an ordered phase with small domains describing a ( × 2 )R30° structure and a disordered phase. Interestingly, after annealing the precovered TTA SAMs on Au(111) at 90 °C for 1 h, the small ordered domains grew unidirectionally, resulting in the formation of unique rod-like domains, which were assigned a ( × 2 )R7° structure. These results will be very useful in understanding the formation and thermal behavior of TTA SAMs on gold surfaces.
Keywords
Self-assembled monolayers; Tolanethioacetate; Ordered domains; Annealing effect; Scanning tunneling microscopy;
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Times Cited By Web Of Science : 7  (Related Records In Web of Science)
Times Cited By SCOPUS : 5
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