title: Highly efficient photodimerization of olefins in a nanotemplate on HOPG by scanning tunneling microscopy.
abstract: Efficient photochemical reactions on a surface are of great importance for their potential applications in optoelectronic devices. In this work, a highly efficient photodimerization reaction of an olefin cocrystal built from two trans-1,2-bis(4-pyridyl)ethylenes (4,4'-bpe) and two isophthalic acid molecules via N···H-O hydrogen bonds in between was achieved in a nanotemplate on a highly oriented pyrolytic graphite (HOPG) surface. 4,4'-Bpe molecules first undergo the trans-cis isomerization followed by [2+2] photodimerization in the nanotemplate on HOPG upon UV irradiation. The efficiency of the isomerization as well as the photodimerization in the presence of the nanotemplate is much higher than that in its absence. These results provide a facile way to achieve highly efficient photodimerization of olefins on a large scale on surfaces.
authors.affiliation: CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology, Beijing, 100190, China. zengqd@nanoctr.cn wangch@nanoctr.cn.
authors.forename: JinDong
authors.initials: J
authors.lastname: Xue
authors.forename: Jing
authors.initials: J
authors.lastname: Xu
authors.forename: FangYun
authors.initials: F
authors.lastname: Hu
authors.forename: LingYan
authors.initials: L
authors.lastname: Liao
authors.forename: Min
authors.initials: M
authors.lastname: Li
authors.forename: WuBiao
authors.initials: W
authors.lastname: Duan
authors.forename: QingDao
authors.initials: Q
authors.lastname: Zeng
authors.forename: Chen
authors.initials: C
authors.lastname: Wang