Study on the rapid spin equilibrium in Ph4P[Zn IIFeIII(mto)3] (mto = Monothiooxalato)

Koichi Kagesawa, Atsushi Okazawa, Masaya Enomoto, Norimichi Kojima

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Abstract

We synthesized a mto (= monothiooxalato)-bridged heterometal complex, Ph4P[ZnIIFeIII(mto)3] consisting of FeIIIO3S3 and ZnIIO6 octahedra and investigated its physical properties. Ph4P[Zn IIFeIII(mto)3] has a two-dimensional honeycomb network structure. The ESR and 57Fe Mössbauer spectra revealed that the rapid spin equilibrium in which the high-spin (HS) state and the low-spin (LS) state exchange in the time scale of 10-10 < τ < 10-7 s occurs at the FeIIIO3S3 site, which is the first report for an assembled metal complex system.

Original languageEnglish
Pages (from-to)872-873
Number of pages2
JournalChemistry Letters
Volume39
Issue number8
DOIs
Publication statusPublished - 26 Jul 2010

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