Self-assembled structures and structural transition of dimethyl isophthalate-functionalized janus dendrimers on hopg investigated with stm | |
Zhang Xu1,2; Feng Yu1,2; Fan Qing-Hua1; Wan Li-Jun1 | |
刊名 | Chemical journal of chinese universities-chinese
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2009-12-10 | |
卷号 | 30期号:12页码:2424-2428 |
关键词 | Janus dendrimer Self-assembly Structural transition Scanning tunneling microscopy(stm) |
ISSN号 | 0251-0790 |
通讯作者 | Fan qing-hua(fanqh@iccas.ac.cn) |
英文摘要 | Self-assembled structures of three dimethyl isophthalate-functionalized janus dendrimers g(1)g(2)cooch(3), g(0)g(3)cooch(3), and g(1)g(3)cooch(3) were investigated with scanning tunneling microscopy (stm) on hopg. it was found that g(1)g(2)cooch(3), g(0)g(3)cooch(3), g(1)g(3)cooch(3) assembled into ordered, partial ordered, and disordered structures, respectively. after heated to 60-80 degrees c, regular dendrimer dimers, could be found on hopg, resulting in close-packed ordered structures instead of the previous disordered structures. the results show that with the increase of the molecule generation, molecules are bound down onto surface due to the enhanced intermolecular and molecule-substrate interactions. the self-assembly is dependent on the dynamic process, leading to disordered structures. however, when heated, the mobility of dendrimer molecules on surface could be improved. structural transformation from disordered structures to thermodynamically stable dimeric structures could be observed by stm on g(0)g(3)cooch(3) and g(1)g(3)cooch(3) adlayers. |
WOS关键词 | SCANNING-TUNNELING-MICROSCOPY ; ASYMMETRIC HYDROGENATION ; DENDRITIC MOLECULES ; SOLID-SURFACES ; DENDRONS ; MONOLAYERS ; VISUALIZATION ; ORGANIZATION ; INTERFACE ; GRAPHITE |
WOS研究方向 | Chemistry |
WOS类目 | Chemistry, Multidisciplinary |
语种 | 英语 |
出版者 | HIGHER EDUCATION PRESS |
WOS记录号 | WOS:000273792900020 |
内容类型 | 期刊论文 |
URI标识 | http://www.corc.org.cn/handle/1471x/2400776 |
专题 | 中国科学院大学 |
通讯作者 | Fan Qing-Hua |
作者单位 | 1.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang Xu,Feng Yu,Fan Qing-Hua,et al. Self-assembled structures and structural transition of dimethyl isophthalate-functionalized janus dendrimers on hopg investigated with stm[J]. Chemical journal of chinese universities-chinese,2009,30(12):2424-2428. |
APA | Zhang Xu,Feng Yu,Fan Qing-Hua,&Wan Li-Jun.(2009).Self-assembled structures and structural transition of dimethyl isophthalate-functionalized janus dendrimers on hopg investigated with stm.Chemical journal of chinese universities-chinese,30(12),2424-2428. |
MLA | Zhang Xu,et al."Self-assembled structures and structural transition of dimethyl isophthalate-functionalized janus dendrimers on hopg investigated with stm".Chemical journal of chinese universities-chinese 30.12(2009):2424-2428. |
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