Citation: ZHANG Xu-Dong. A Transformation from Six-to Five-coordinated Geometry: Syntheses, Crystal Structures and Magnetic Properties of Two Ru-based Complexes[J]. Chinese Journal of Structural Chemistry, ;2015, 34(7): 1092-1098. doi: 10.14102/j.cnki.0254-5861.2011-0596 shu

A Transformation from Six-to Five-coordinated Geometry: Syntheses, Crystal Structures and Magnetic Properties of Two Ru-based Complexes

ZHANG Xu-Dong ^,

1.
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China

Corresponding author: ZHANG Xu-Dong,
Received Date: 9 December 2014
Available Online: 4 May 2015

Complexes Cl-Ru^Ⅱ(dppe)₂(FeCl₄)·2CH₂Cl₂ (2) and Br-Ru^Ⅱ(dppe)₂(FeBr₄)·2CH₂Cl₂ (3) were prepared by the reaction of trans-Ru^Ⅱ(dppe)₂Cl₂ (1) with FeX₃ (X=Cl, Br). More interestingly, the central Ru atoms of Ru^Ⅱ(dppe)-based complexes (2 and 3) define a tetragonal pyramid with five-coordination. The temperature dependence magnetic susceptibilities indicate that the χ_MT values of complexes 2 and 3 are almost constant at 50~300 K, and the χ_MT values sharply decrease with further decreasing the temperature at low temperature due to the zero-field splitting (ZFS) of high spin Fe(Ⅲ) ions.
- ruthenium,
- FeX^4-,
- dppe,
- zero-field splitting,
- crystal structure
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