Dynamic Behavior of the Jahn-Teller Distorted Cu(H2O)62+ Ion in Cu2+ Doped Cs2[Zn(H2O)6](ZrF6)2 and t

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• 作者：Michael A. Hitchman ; Yurii V. Yablokov ; Vladimir E. Petrashen ; Maria A. Augustyniak-Jab//pubs.acs.org/images/entities/lstrok.gif" border="0">okov ; Horst Stratemeier ; Mark J. Riley ; Kazi
• 刊名：Inorganic Chemistry
• 出版年：2002
• 出版时间：January 28, 2002
• 年：2002
• 卷：41
• 期：2
• 页码：229 - 238
• 全文大小：141K
• 年卷期：v.41,no.2(January 28, 2002)
• ISSN：1520-510X

文摘

The temperature dependence of the X- and Q-band EPR spectra of Cs₂[Zn(H₂O)₆](ZrF₆)₂ containing ~1% Cu²⁺ isreported. All three molecular g-values vary with temperature, and their behavior is interpreted using a model inwhich the potential surface of the Jahn-Teller distorted Cu(H₂O)₆²⁺ ion is perturbed by an orthorhombic "strain"induced by interactions with the surrounding lattice. The strain parameters are significantly smaller than thosereported previously for the Cu(H₂O)₆²⁺ ion in similar lattices. The temperature dependence of the two higher g-valuessuggests that in the present compound the lattice interactions change slightly with temperature. The crystal structureof the Cs₂[Zn(H₂O)₆](ZrF₆)₂ host is reported, and the geometry of the Zn(H₂O)₆²⁺ ion is correlated with lattice strainparameters derived from the EPR spectrum of the guest Cu²⁺ complex.