Spin-crossover 3D architectures of Fe (II) complex bearing triazole ligand

Authors

  • S.A. Amolegbe
  • S. Adewuyi
  • C.A. Akinremi
  • F.A. Oladoyinbo
  • A. Lawal
  • A.O. Sobola
  • J.O. Obaleye
  • S. Hayami

Abstract

A new assembled iron (II) complex with triazole derivative, [Fe(pbtrz)6](ClO4)2 :  (pbtrz = 4, 4’ - (1, 4 - phenylene)bis - 1, 2, 4 - triazole) was synthesized and well characterized. The ligand showed 3D architectures bridging with iron (II) metal through the N-1 and N-2. The investigation of its magnetic properties has revealed a spin-crossover (SCO) between the low-spin (LS) and the high-spin (HS) states (T1/2 = 242 K) without a thermal hysteresis loop. The spin-crossover regime was also followed by Mössbauer spectroscopy. Furthermore, a photo-induced spin transition otherwise known as light-induced excited spin-state trapping (LIESST- effect) was observed when the complex was illuminated at 5 K.  Keywords:  triazole, iron (II), spin-crossover, Mössbauer spectroscopy

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Published

2018-02-03

How to Cite

Amolegbe, S., Adewuyi, S., Akinremi, C., Oladoyinbo, F., Lawal, A., Sobola, A., Obaleye, J., & Hayami, S. (2018). Spin-crossover 3D architectures of Fe (II) complex bearing triazole ligand. Journal of Chemical Society of Nigeria, 43(1). Retrieved from http://www.journals.chemsociety.org.ng/index.php/jcsn/article/view/115

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