title: Theoretical studies of diphosphene and diphosphinylidene in their closed-shell states, low-lying open-shell singlet and triplet states, and transition states.  Search for a stable bridged structure.
authors.forename: T L
authors.initials: TL
authors.lastname: Allen
authors.forename: A C
authors.initials: AC
authors.lastname: Scheiner
authors.forename: Y
authors.initials: Y
authors.lastname: Yamaguchi
authors.forename: H F
authors.initials: HF
authors.lastname: Schaefer