Spin Crossover in a Four-Coordinate Iron(II) Complex.

The four-coordinate iron(II) phosphoraniminato complex PhB(MesIm)Fe-N-PPh undergoes an S = 0 to S = 2 spin transition with T = 81 K, as determined by variable-temperature magnetic measurements and Mössbauer spectroscopy. Variable-temperature single-crystal X-ray diffraction revealed that the S = 0 t...

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Detalles Bibliográficos
Publicado en:	Journal of the American Chemical Society Vol. 133; no. 11; pp. 2824 - 2828
Autores principales:	Scepaniak, Jeremiah J., Harris, T. David, Vogel, Carola S., Sutter, Jörg, Meyer, Karsten, Smith, Jeremy M.
Formato:	Artículo
Publicado:	American Chemical Society 3/23/2011
Materias:	Iron Magnetic measurements Spectrum analysis Temperature X-rays Optical diffraction Electronic structure
Acceso en línea:	Ver este registro en EBSCOhost

Descripción
Sumario:	The four-coordinate iron(II) phosphoraniminato complex PhB(MesIm)Fe-N-PPh undergoes an S = 0 to S = 2 spin transition with T = 81 K, as determined by variable-temperature magnetic measurements and Mössbauer spectroscopy. Variable-temperature single-crystal X-ray diffraction revealed that the S = 0 to S = 2 transition is associated with an increase in the Fe-C and Fe-N bond distances and a decrease in the N-P bond distance. These structural changes have been interpreted in terms of electronic structure theory.