- 作者: 林彥成,許益瑞,謝輝煌,李志甫,陳錦明,李振民,王瑜
- 作者服務機構: Department of Chemistry, Taiwan University, Taipei, Taiwan, R.O.C.
- 中文摘要: Complex [Fe(btr)3](ClO4)2 (where btr = 4,4'-bis-1,2,4-triazole) exhibits an unusual two-step spin transition at 188 K and 225 K, respectively. The corresponding three-dimensional framework structure at each step was characterized by X-ray diffraction. X-ray absorption spectroscopy (XAS) at both the Fe K-edge and the Fe L-edge is performed to probe the exact electronic configuration at various temperatures. The two-step behavior observed in the magnetic measurement is well reproduced by XAS. Two types of spin transitions: one abrupt and the other gradual are also observed precisely. The proper technique on monitoring the spin transition by taking advantage of synchrotron radiation is therefore established.
- 英文摘要: --
- 中文關鍵字: Two-step spin transition; X-ray absorption spectroscopy; Fe complex.
- 英文關鍵字: --