title: Antagonism between extreme negative linear compression and spin crossover in [Fe(dpp)(2)(NCS)(2)]⋅py.
abstract: A scissor-like geometric mechanism is responsible for the strongest negative linear compression effect yet observed in a molecular material, [Fe(dpp)(2)(NCS)(2)]⋅py (see picture; dpp=dipyrido[3,2-a:2'3'-c]phenazine), C gray, N blue, S yellow, Fe red). The same mechanism is also responsible for suppressing the high-spin to low-spin transition under pressure.
authors.affiliation: Laboratoire de Chimie de Coordination, CNRS UPR, Toulouse, France.
authors.forename: Helena J
authors.initials: HJ
authors.lastname: Shepherd
authors.forename: Tatiana
authors.initials: T
authors.lastname: Palamarciuc
authors.forename: Patrick
authors.initials: P
authors.lastname: Rosa
authors.forename: Philippe
authors.initials: P
authors.lastname: Guionneau
authors.forename: Gábor
authors.initials: G
authors.lastname: Molnár
authors.forename: Jean-François
authors.initials: JF
authors.lastname: Létard
authors.forename: Azzedine
authors.initials: A
authors.lastname: Bousseksou