title: A ferrocenylspiropyran that functions as a molecular photomemory with controllable depth.
authors.affiliation: Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
authors.forename: Sayoko
authors.initials: S
authors.lastname: Nagashima
authors.forename: Masaki
authors.initials: M
authors.lastname: Murata
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Nishihara