An iron(ii) incomplete spin-crossover compound: Pressure effects and Mössbauer spectroscopy study

Feng Lei Yang, Bao Li, Taro Hanajima, Yasuaki Einaga, Rong Bin Huang, Lan Sun Zheng, Jun Tao

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A one-dimensional iron(ii) spin-crossover compound [Fe(3py-im) 2(NCS)2]·7H2O (1) (3py-im = 2,4,5-tris(4-pyridly)-imidazole) has been solvothermally synthesized and structurally characterized. Compound 1 crystallizes in the monoclinic space group P2/c with a = 11.9078(2), b = 9.9474(1), c = 17.7290(3) and β = 102.361(2)° at 105 K. Studies on the variable-temperature magnetic susceptibilities and Mössbauer spectra suggest that compound 1 undergoes incomplete spin transition behaviour. Pressure effects on the transition behaviour have also been investigated, the thermal-induced spin transition becomes more gradual and the critical temperature shifts towards slightly higher temperature range when external pressure increases. However, the spin transition can not be completed by applying external pressure even as high as 0.79 GPa.

Original languageEnglish
Pages (from-to)2288-2292
Number of pages5
JournalDalton Transactions
Issue number9
Publication statusPublished - 2010 Feb 26


ASJC Scopus subject areas

  • Inorganic Chemistry

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