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Nicyclam_chemrxiv.pdf (3 MB)

Spin-Crossover Phenomena of Ni(cyclam)I2 Complex: Magnetostructural Correlations in Two Polymorphs

submitted on 25.12.2018, 06:31 and posted on 26.12.2018, 15:26 by Yoji Horii, Yuki Kanegae, Kiyonori Takahashi, Akira Fuyuhiro, Hal Suzuki, Motohiro Nakano
Two crystal polymorphs of Ni(cyclam)I2 (cyclam = 1,4,8,11-
tetraazacyclotetradecane) were identified by X-ray structural analysis and their magnetic properties were investigated. Gradual spin-crossover behaviors were found in both polymorphs. Entropy differences between high- and low-spin states obtained by assuming the spin equilibrium model reflected subtle difference of the coordination environment of nickel(II) ion in two polymorphs.


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Email Address of Submitting Author


Research Center for Structural Thermodynamics, Graduate School of Science, Osaka University



ORCID For Submitting Author


Declaration of Conflict of Interest

The authors have no conflicts of interest to declare.