title: Switching in molecular shapes: main chain length driven rod-circle transition of isolated helical polysilanes.
abstract: Unique conformations such as rod, semicircle, and circle structures of isolated semi-flexible helical polysilanes were observed by atomic force microscopy (AFM); the chain topology was significantly related to the chain length (molecular weight) on the surfaces.
authors.affiliation: Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5, Takayama, Ikoma, Nara 630-0101, Japan. aohira@ms.naist.jp
authors.forename: Akihiro
authors.initials: A
authors.lastname: Ohira
authors.forename: Sun-Young
authors.initials: SY
authors.lastname: Kim
authors.forename: Michiya
authors.initials: M
authors.lastname: Fujiki
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Kawakami
authors.forename: Masanobu
authors.initials: M
authors.lastname: Naito
authors.forename: Giseop
authors.initials: G
authors.lastname: Kwak
authors.forename: Anubhav
authors.initials: A
authors.lastname: Saxena