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Two [Ni(dmit)2]- Compounds Showing Layered and Chain Alignments: Crystal Structures and Magnetic Properties

ZHANG Hui ,  YUAN Guo-Jun ,  LIU Shao-Xian ,  DUAN Hai-Bao

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Citation:  ZHANG Hui, YUAN Guo-Jun, LIU Shao-Xian, DUAN Hai-Bao. Two [Ni(dmit)2]- Compounds Showing Layered and Chain Alignments: Crystal Structures and Magnetic Properties[J]. Chinese Journal of Structural Chemistry, 2016, 35(2): 271-278. doi: 10.14102/j.cnki.0254-5861.2011-0833 shu

Two [Ni(dmit)2]- Compounds Showing Layered and Chain Alignments: Crystal Structures and Magnetic Properties

  • 1.

    a School of Environmental Science, Nanjing Xiaozhuang College, Nanjing 211171, China;

  • 2.

    b School of Chemical and Engineering, Anhui Huangshan University, Anhui 245021, China

摘要: Two metal-dithiolene compounds with a formula of [4-ClBz-1-APy][Ni(dmit)2] (1) and [4-NO2Bz-1-APy][Ni(dmit)2] (2, 4-ClBz-1-APy = 1-N-(4'-chlorobenzyl)pyridinium, 4-NO2Bz- 1-APy = 1-N-(4'-nitrobenzyl)pyridinium, dmit2- = l,3-dithiole-2-thione-4,5-dithiolate) were synthesized and characterized. Two compounds crystallize in triclinic space group P1 and P1, respectively, but with different cell parameters and packing structures. The [Ni(dmit)2]- anions and cations of 1 form mixed column stacks along the a axis and alternately layered alignments in the crystal of 2, which are parallel to the crystallographic (110) plane. Two compounds show a similar magnetic behavior, the magnetic exchange natures are mainly antiferromagnetic, and the magnetic susceptibility data can be fitted to the simple Curie-Weiss law. For 1 and 2, the fitted Curie constants are much less than the spin-only value expected for an S = 1/2 system, and the fitted Weiss constants marking magnetic interaction are also very smaller. This fact implies that the weak Currie- Weiss-type paramagnetism is not the intrinsic characteristics of two compounds.

English

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  • 收稿日期:  2015-06-03
  • 网络出版日期:  2015-08-19
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