Citation: WANG Kang-Jie, LI Hong-Qing, SUN Yu-Chen, WANG Xin-Yi. Synthesis and Properties of an Iron(Ⅲ) Spin Crossover Compound with 1D Chains Bridged by Hydrogen Bonds[J]. Chinese Journal of Inorganic Chemistry, ;2020, 36(6): 1143-1148. doi: 10.11862/CJIC.2020.123 shu

Synthesis and Properties of an Iron(Ⅲ) Spin Crossover Compound with 1D Chains Bridged by Hydrogen Bonds

State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China

Corresponding author: WANG Xin-Yi, wangxy66@nju.edu.cn
Received Date: 26 February 2020
Revised Date: 21 March 2020

Figures(5)

A mononuclear Fe(Ⅲ) compound [Fe^Ⅲ(Him)₂(4-MeOhapen)](CH₃SO₃) (1, Him=imidazole, H₂(4-MeOhapen)=N, N'-bis(4-methoxy-2-hydroxyacetophenylidene)ethylenediamine) was synthesized and characterized structurally and magnetically. Single-crystal X-ray diffraction analysis revealed that the CH₃SO₃^- anions bridge the [Fe^Ⅲ(Him)₂(4-MeOhapen)]⁺ cations by moderate hydrogen bonds to form one-dimensional chain structures. Magnetic suscepti-bility measurements revealed that compound 1 exhibits an abrupt spin crossover (SCO) with transition temperatures T_1/2↓=163 K and T_1/2↑=167 K. These results indicate that hydrogen bonds formed between the cationic and anionic centers play an important role in improving the SCO properties.
- Fe(Ⅲ) compound,
- spin crossover,
- single-crystal structure,
- hydrogen bond
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