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Title: L-Tryptophan on Cu(111): engineering a molecular labyrinth driven by indole groups

Abstract

The present article investigates the adsorption and molecular orientation of L-Tryptophan, which is both an essential amino acid important for protein synthesis and of particular interest for the development of chiral molecular electronics and biocompatible processes and devices, on Cu(111) using scanning tunneling microscopy and spectroscopy at 55 K and at room temperature. The arrangement of chemisorbed L-Tryptophan on the copper surface varies with both temperature and surface coverage. At low coverage, small clusters form on the surface irrespective of temperature, while at high coverage an ordered chain structure emerges at room temperature, and a tightly packed structure forms a molecular labyrinth at low temperature. The dominating superstructure of the adsorbates arises from intermolecular hydrogen bonding, and pi-bonding interactions between the indole groups of neighboring molecules and the Cu surface.

Authors:
; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1392451
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Nanotechnology
Additional Journal Information:
Journal Volume: 26; Journal Issue: 23; Journal ID: ISSN 0957-4484
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English

Citation Formats

Yitamben, E. N., Clayborne, A., Darling, Seth B., and Guisinger, N. P. L-Tryptophan on Cu(111): engineering a molecular labyrinth driven by indole groups. United States: N. p., 2015. Web. doi:10.1088/0957-4484/26/23/235604.
Yitamben, E. N., Clayborne, A., Darling, Seth B., & Guisinger, N. P. L-Tryptophan on Cu(111): engineering a molecular labyrinth driven by indole groups. United States. doi:10.1088/0957-4484/26/23/235604.
Yitamben, E. N., Clayborne, A., Darling, Seth B., and Guisinger, N. P. Thu . "L-Tryptophan on Cu(111): engineering a molecular labyrinth driven by indole groups". United States. doi:10.1088/0957-4484/26/23/235604.
@article{osti_1392451,
title = {L-Tryptophan on Cu(111): engineering a molecular labyrinth driven by indole groups},
author = {Yitamben, E. N. and Clayborne, A. and Darling, Seth B. and Guisinger, N. P.},
abstractNote = {The present article investigates the adsorption and molecular orientation of L-Tryptophan, which is both an essential amino acid important for protein synthesis and of particular interest for the development of chiral molecular electronics and biocompatible processes and devices, on Cu(111) using scanning tunneling microscopy and spectroscopy at 55 K and at room temperature. The arrangement of chemisorbed L-Tryptophan on the copper surface varies with both temperature and surface coverage. At low coverage, small clusters form on the surface irrespective of temperature, while at high coverage an ordered chain structure emerges at room temperature, and a tightly packed structure forms a molecular labyrinth at low temperature. The dominating superstructure of the adsorbates arises from intermolecular hydrogen bonding, and pi-bonding interactions between the indole groups of neighboring molecules and the Cu surface.},
doi = {10.1088/0957-4484/26/23/235604},
journal = {Nanotechnology},
issn = {0957-4484},
number = 23,
volume = 26,
place = {United States},
year = {2015},
month = {5}
}