title: Pentagermapyramidane: crystallizing the "transition-state" structure.
abstract: The first example of the homonuclear pyramidanes, pentagermapyramidane, was synthesized, fully characterized, and computationally studied to reveal its peculiar structural features and the nature of its apex-to-base bonding interactions. Both solid-state and solution structures of pentagermapyramidane are discussed based on the computed stabilities of its square-pyramidal and distorted forms.
authors.affiliation: Department of Chemistry, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8571, Ibaraki (Japan). leevya@chem.tsukuba.ac.jp.
authors.forename: Vladimir Ya
authors.initials: VY
authors.lastname: Lee
authors.forename: Yuki
authors.initials: Y
authors.lastname: Ito
authors.forename: Olga A
authors.initials: OA
authors.lastname: Gapurenko
authors.forename: Akira
authors.initials: A
authors.lastname: Sekiguchi
authors.forename: Vladimir I
authors.initials: VI
authors.lastname: Minkin
authors.forename: Ruslan M
authors.initials: RM
authors.lastname: Minyaev
authors.forename: Heinz
authors.initials: H
authors.lastname: Gornitzka
keywords: NMR spectroscopy; X‐ray diffraction; cage compounds; density functional calculations; germanium