单层
卟啉
化学
分子
图层(电子)
硅
金属
金属有机骨架
纳米技术
铜
同步加速器
晶体硅
化学工程
结晶学
有机化学
材料科学
光学
吸附
生物化学
物理
工程类
作者
Soichiro Motoyama,Rie Makiura,Osami Sakata,Hiroshi Kitagawa
摘要
Layer-structured metal-organic framework (MOF) nanofilms (NAFS-2) consisting of 5,10,15,20-tetrakis(4-carboxyphenyl)porphyrin (H(2)TCPP) molecules and copper ion metal linkers were assembled on a gold or a silicon surface by applying a solution-based layer-by-layer growth technique coupled with the Langmuir-Blodgett method. Synchrotron X-ray diffraction measurements showed that NAFS-2 exhibits highly crystalline order in both the in-plane and out-of-plane orientations. Each MOF sheet (monolayer) adheres without pillaring units, and the nanofilm maintains its highly crystalline order above 200 °C. The results provide an excellent demonstration of how to exercise in a facile way fine control of the assembly of molecule-based hybrid objects and their thermal stability, which is a key issue for the future use of MOFs in potential applications in nanodevices.
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