期刊
CHEMISTRY-AN ASIAN JOURNAL
卷 6, 期 9, 页码 2426-2430出版社
WILEY-BLACKWELL
DOI: 10.1002/asia.201100431
关键词
host-guest systems; nanoporous network; scanning tunnelling microscopy; self-assembly
资金
- National Natural Science Foundation of China [20733004, 20821003, 20821120291, 91023013, 20905069]
- National Key Project on Basic Research [2011CB808700, 2011CB932300]
- Chinese Academy of Sciences
- NSF [CHE-0820955]
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [0820955] Funding Source: National Science Foundation
Over the past few years, two-dimensional (2D) nanoporous networks have attracted great interest as templates for the precise localization and confinement of guest building blocks, such as functional molecules or clusters on the solid surfaces. Herein, a series of two-component molecular networks with a 3-fold symmetry are constructed on graphite using a truxenone derivative and trimesic acid homologues with carboxylic-acid-terminated alkyl chains. The hydrogen-bonding partner-recognition-induced 2D crystallization of alkyl chains makes the flexible alkyl chains act as rigid spacers in the networks to continuously tune the pore size with an accuracy of one carbon atom per step. The two-component networks were found to accommodate and regulate the distribution and aggregation of guest molecules, such as COR and CuPc. This procedure provides a new pathway for the design and fabrication of molecular nanostructures on solid surfaces.
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