Self-Organized Overlayers Formed by Alanine on Cu{311} Surfaces
Self-Organized Overlayers Formed by Alanine on Cu{311} Surfaces
复制标题
Cu{311} 表面上丙氨酸形成的自组织覆盖层
DOI:
10.1021/jp505636v
复制
发表时间:
2014
期刊:
影响因子:
--
通讯作者:
Madden D
中科院分区:
文献类型:
--
作者:
Madden D
Chirality can manifest itself in diverse ways when a molecule adsorbs on a metal surface. A clear understanding of the interplay between molecular chirality, “footprint chirality”, and chirality in the long-range self-organization is crucial if metal surfaces are to be exploited for enantioselective heterogeneous catalysis or enantio-discriminating sensors. We have investigated the self-organization ofl-alanine adsorbed as alaninate on Cu{311}, using reflection–absorption infrared spectroscopy in conjunction with first-principles calculations to determine bonding configurations, and low-energy electron diffraction and scanning tunnelling microscopy to elucidate structural features. Three ordered structures are seen. One has a symmetric lattice and 3-point adsorbate bonding (the “symmetric lattice” or SL phase); the others, occurring at higher coverage, have chiral lattices and also involve 2-point bonding (the “chiral lattice” or CL phase). Possible models for these structures are discussed, together with the roles of footprint chirality and of long-range chirality in the self-organization. These results set the forms of chirality seen in alaninate overlayers on Cu{110} and {100} surfaces into a wider context. The common underlying principles should help in establishing a general framework for understanding the behavior of chiral adsorbates on low-symmetry metal surfaces.
登录
查看更多内容
影响因子:
3
作者:
R. Maul;F. Ortmann;M. Preuss;K. Hannewald;F. Bechstedt
通讯作者:
F. Bechstedt
影响因子:
3.3
作者:
Rees B Rankin;D. Sholl
通讯作者:
D. Sholl
影响因子:
1.9
作者:
Glenn Jones;S. Jenkins;D. King
通讯作者:
Glenn Jones;S. Jenkins;D. King
影响因子:
1.9
作者:
J. Williams;S. Haq;R. Raval
通讯作者:
R. Raval
DOI:
--
发表时间:
1991
期刊:
影响因子:
--
作者:
S. Parkin;P. Watson;R. McFarlane;K. Mitchell
通讯作者:
K. Mitchell