tetraphenylporphyriniron(III) hexafluoroantimonate fluorobenzene solvate | 109327-00-6

• 英文名称: tetraphenylporphyriniron(III) hexafluoroantimonate fluorobenzene solvate
• CAS: 109327-00-6
• 化学式: C₆H₅F*C₄₄H₂₈F₆FeN₄Sb
• 分子量: 1000.42
• InChiKey: XYSNJJJBZQMQMH-SAHSELGOSA-H

反应信息

• 作为产物：
  描述：

  silver hexafluoroantimonate 、 Fe(tetraphenylporphyrin)Br 以 氟苯 为溶剂， 生成 tetraphenylporphyriniron(III) hexafluoroantimonate fluorobenzene solvate
  参考文献：
  名称：

  Susceptibility and Mössbauer study of an antiferromagnetically coupled admixed‐intermediate spin state in Fe(TPP) (FSbF₅)⋅C₆H₅F

  摘要：

  Magnetic properties of the synthetic hexafluoroantimonate complex of iron (III) tetraphenylporphyrin, Fe(TPP) (FSbF5)⋅C6H5F, were studied by susceptibility and Mössbauer techniques. The measured effective magnetic moment varies from 1.7 β at 1.5 K to 4.14 β at 300 K. The data were analyzed with the ‘‘Maltempo model’’ combined with a mean field antiferromagnetic treatment. This analysis shows that the system is predominantly in the S=3/2 spin state (98%) with an unusually small spin–orbit coupling constant ζ=79 cm−1. The net interaction of a given spin with the thermal average of all the spins is (1.39 cm−1)S⋅〈S〉T. Mössbauer spectra were recorded from 4.2 to 64 K in fields 0 to 6 T. The chemical shift δ=0.39 (Fe) mm/s and quadrupole splitting ΔE=4.29 mm/s are temperature independent and typical of ferric ions in the admixed–intermediate spin state. Mössbauer analysis confirms that the exchange interaction must couple many spins rather than forming spin pairs as seen in earlier work. The analysis also provides the rather low hyperfine coupling constant P/gNβN=28 T/unit spin, and contact constant κ=0.25. The spectra imply slow relaxation in fields greater than 4 T at 4.2 K, the rate increasing with increasing T and decreasing H. All Mössbauer and susceptibility data were fitted with a common parameter set; only the relaxation parameter was varied from one spectrum to another.

  DOI：

  10.1063/1.452552

文献信息

• Shelly, Kenneth; Bartczak; Robert Scheidt, Inorganic Chemistry, <hi>1985</hi>, vol. 24, # 25, p. 4325 - 4330
  作者：Shelly, Kenneth、Bartczak、Robert Scheidt、Reed, Christopher A.

  DOI：——

  日期：——