title: Dynamic behavior of the Jahn-Teller distorted Cu(H(2)O)(6)(2+) ion in Cu(2+) doped Cs(2)[Zn(H(2)O)(6)](ZrF(6))(2) and the crystal structure of the host lattice.
abstract: The temperature dependence of the X- and Q-band EPR spectra of Cs(2)[Zn(H(2)O)(6)](ZrF(6))(2) containing approximately 1% Cu(2+) is reported. All three molecular g-values vary with temperature, and their behavior is interpreted using a model in which the potential surface of the Jahn-Teller distorted Cu(H(2)O)(6)(2+) ion is perturbed by an orthorhombic "strain" induced by interactions with the surrounding lattice. The strain parameters are significantly smaller than those reported previously for the Cu(H(2)O)(6)(2+) ion in similar lattices. The temperature dependence of the two higher g-values suggests that in the present compound the lattice interactions change slightly with temperature. The crystal structure of the Cs(2)[Zn(H(2)O)(6)](ZrF(6))(2) host is reported, and the geometry of the Zn(H(2)O)(6)(2+) ion is correlated with lattice strain parameters derived from the EPR spectrum of the guest Cu(2+) complex.
authors.affiliation: School of Chemistry, University of Tasmania, Box 252-75 Hobart, TAS 7001 Australia. michael.hitchman@utas.edu.au
authors.forename: Michael A
authors.initials: MA
authors.lastname: Hitchman
authors.forename: Yurii V
authors.initials: YV
authors.lastname: Yablokov
authors.forename: Vladimir E
authors.initials: VE
authors.lastname: Petrashen
authors.forename: Maria A
authors.initials: MA
authors.lastname: Augustyniak-Jabłokov
authors.forename: Horst
authors.initials: H
authors.lastname: Stratemeier
authors.forename: Mark J
authors.initials: MJ
authors.lastname: Riley
authors.forename: Kazimierz
authors.initials: K
authors.lastname: Łukaszewicz
authors.forename: Paweł E
authors.initials: PE
authors.lastname: Tomaszewski
authors.forename: Adam
authors.initials: A
authors.lastname: Pietraszko