Formation of heterocaryotic and homonuclear bridged–dimeric complexes on surface |
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作者姓名: | Yan-Fang Geng Shi-Li Wu Jing Xu Hong-Liang Dai Xiao-Kang Li Ke Deng Qing-Dao Zeng |
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作者单位: | a CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology(NCNST), Beijing 100190, China;
b Key Laboratory of Organo-pharmaceutical Chemistry, Gannan Normal University, Ganzhou 341000, China |
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基金项目: | supported by the National Basic Research Program of China (No. 2013CB934200);National Basic Research Program of China (No. 2012CB933001);The Chinese Academy of Sciences (No. YZ201318);the National Natural Science Foundation of China (Nos. 21472029, 51173031, 91127043, 51203030, 51463002) |
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摘 要: | The formation of coordinated dimeric complexes bridged by axial ligands on surface is observed with the help of a 1,3,5-tris(10-carboxydecyloxy)benzene(TCDB) template through scanning tunneling microscopy(STM). STM images of molecular adlayers of zinc tetraphenylporphyrin(Zn TPP), zinc phthalocyanine(Zn Pc), and their mixture are reported. Zn TPP and Zn Pc can spontaneously form highly an ordered structure with a 1:1 molar ratio, which is different from that of individual Zn Pc. The coordinated bimolecular complexes bridged with axial ligands, simply as Zn Pc–DPP–Zn TPP and Zn Pc–DPE–Zn Pc, are presented and the corresponding surface structures are compared. Zn Pc and Zn TPP can be connected by an axial ligand DPP and formed assembled structures out of surface. Two types of arrays with entirely new structure are obtained for the Zn Pc–DPE–Zn Pc complex. These bridged hybrid complexes provide an example of design of self-organized crystals on the basis of coordination through non-covalent interactions.
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关 键 词: | Coordinated dimeric complexes Zinc tetraphenylporphyrin(ZnTPP) Zinc phthalocyanine(ZnPc) Scanning tunneling microscopy(STM) Axial ligands |
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