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

被引:96
|
作者
Scepaniak, Jeremiah J. [2 ]
Harris, T. David [3 ]
Vogel, Carola S. [1 ]
Sutter, Joerg [1 ]
Meyer, Karsten [1 ]
Smith, Jeremy M. [2 ]
机构
[1] Univ Erlangen Nurnberg, Dept Chem & Pharm, D-91058 Erlangen, Germany
[2] New Mexico State Univ, Dept Chem & Biochem, Las Cruces, NM 88003 USA
[3] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA
关键词
LOW-COORDINATE; TRANSITION; COBALT(II); STATES;
D O I
10.1021/ja2003473
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The four-coordinate iron(II) phosphoraniminato complex PhB(MesIm)(3)Fe-N=PPh3 undergoes an S = 0 to S = 2 spin transition with T-C = 81 K, as determined by variable-temperature magnetic measurements and Mossbauer 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.
引用
收藏
页码:3824 / 3827
页数:4
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