Controlling molecular deposition and layer structure with supramolecular surface assemblies

被引:991
作者
Theobald, JA
Oxtoby, NS
Phillips, MA
Champness, NR [1 ]
Beton, PH
机构
[1] Univ Nottingham, Sch Chem, Nottingham NG7 2RD, England
[2] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England
关键词
D O I
10.1038/nature01915
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Selective non-covalent interactions have been widely exploited in solution-based chemistry to direct the assembly of molecules into nanometre-sized functional structures such as capsules, switches and prototype machines(1-5). More recently, the concepts of supramolecular organization have also been applied to two-dimensional assemblies on surfaces(6,7) stabilized by hydrogen bonding(8-14), dipolar coupling(15-17) or metal co-ordination(18). Structures realized to date include isolated rows(8,13-15), clusters(9,10,18) and extended networks(10-12,17), as well as more complex multicomponent arrangements(16). Another approach to controlling surface structures uses adsorbed molecular monolayers to create preferential binding sites that accommodate individual target molecules(19,20). Here we combine these approaches, by using hydrogen bonding to guide the assembly of two types of molecules into a two-dimensional open honeycomb network that then controls and templates new surface phases formed by subsequently deposited fullerene molecules. We find that the open network acts as a two-dimensional array of large pores of sufficient capacity to accommodate several large guest molecules, with the network itself also serving as a template for the formation of a fullerene layer.
引用
收藏
页码:1029 / 1031
页数:3
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