Two-dimensional self-assembly of uracil molecules on Cu(111) surfaces: A low-temperature STM study

被引：36

作者：

Nakagawa, T ^{[1
]}

Tanaka, H ^{[1
]}

Kawai, T ^{[1
]}

机构：

[1] OSAKA UNIV, INST SCI & IND RES, IBARAKI, OSAKA 567, JAPAN

来源：

SURFACE SCIENCE | 1997年 / 370卷 / 01期

关键词：

biological molecules nucleic acids; construction and use of effective interatomic interactions; copper; diffusion and migration; low index single crystal surfaces; metallic surfaces; scanning tunneling microscopy; self-assembly;

D O I：

10.1016/S0039-6028(96)01170-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Novel superstructures of self-assembled uracil molecules, one of the RNA bases, have been observed using scanning tunneling microscopy on clean Cu(111) single crystal surfaces in ultra-high vacuum at approximate to 70 K. Isolated uracil trimers are formed at low coverage, and two-dimensional islands with a hexagonal superstructure are built up at increased coverage. The dominant force responsible for the formation of the trimers and the islands is electrostatic interaction through anisotropic hydrogen bonding between uracil molecules on the surface.

引用

页码：L144 / L148

页数：5

共 12 条

[1] CHARACTERISTICS OF THE WATSON-CRICK TYPE HYDROGEN-BONDED DNA-BASE PAIRS - AN ABINITIO MOLECULAR-ORBITAL STUDY [J].

AIDA, M .

JOURNAL OF COMPUTATIONAL CHEMISTRY, 1988, 9 (04) :362-368

[2] IMAGING STRUCTURAL DETAILS IN CLOSELY RELATED MOLECULAR ADSORBATE SYSTEMS [J].

HALLMARK, VM ;

CHIANG, S .

SURFACE SCIENCE, 1993, 286 (1-2) :190-200

[3] REAL-SPACE IMAGING OF THE MOLECULAR-ORGANIZATION OF NAPHTHALENE ON PT(111) [J].

HALLMARK, VM ;

CHIANG, S ;

BROWN, JK ;

WOLL, C .

PHYSICAL REVIEW LETTERS, 1991, 66 (01) :48-51

[4] OBSERVATION AND CALCULATION OF INTERNAL STRUCTURE IN SCANNING-TUNNELING-MICROSCOPY IMAGES OF RELATED MOLECULES [J].

HALLMARK, VM ;

CHIANG, S ;

MEINHARDT, KP ;

HAFNER, K .

PHYSICAL REVIEW LETTERS, 1993, 70 (24) :3740-3743

[5] ON THE ELECTROSTATIC DIRECTIONALITY OF N-H...O=C HYDROGEN-BONDING [J].

MITCHELL, JBO ;

PRICE, SL .

CHEMICAL PHYSICS LETTERS, 1989, 154 (03) :267-272

[6] INTERACTIONS AND DYNAMICS OF BENZENE ON CU(111) AT LOW-TEMPERATURE [J].

STRANICK, SJ ;

KAMNA, MM ;

WEISS, PS .

SURFACE SCIENCE, 1995, 338 (1-3) :41-59

[7] Two-dimensional self-assembly of DNA base molecules on Cu(111) surfaces [J].

Tanaka, H ;

Nakagawa, T ;

Kawai, T .

SURFACE SCIENCE, 1996, 364 (02) :L575-L579

[8] Imaging of nucleic acid base molecules on Pd(110) surfaces by scanning tunneling microscopy [J].

Tanaka, H ;

Yoshinobu, J ;

Kawai, M ;

Kawai, T .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1996, 35 (2B) :L244-L246

[9] LONE-PAIR DIRECTIONALITY IN HYDROGEN-BOND POTENTIAL FUNCTIONS FOR MOLECULAR MECHANICS CALCULATIONS - THE INHIBITION OF HUMAN CARBONIC ANHYDRASE-II BY SULFONAMIDES [J].

VEDANI, A ;

DUNITZ, JD .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1985, 107 (25) :7653-7658

[10] MOLECULAR STRUCTURE OF NUCLEIC ACIDS - A STRUCTURE FOR DEOXYRIBOSE NUCLEIC ACID [J].

WATSON, JD ;

CRICK, FHC .

NATURE, 1953, 171 (4356) :737-738

← 1 2 →