Citation: Zhen-Hai SHI, Yuan HUANG, Yu-Ze WU, Xiao-Li CHEN, Hua YANG. A Hexanuclear Cobalt Cluster with Tetracubane-like Topology: Synthesis, Structure and Magnetic Properties[J]. Chinese Journal of Structural Chemistry, ;2021, 40(4): 495-500. doi: 10.14102/j.cnki.0254–5861.2011–2942 shu

A Hexanuclear Cobalt Cluster with Tetracubane-like Topology: Synthesis, Structure and Magnetic Properties

Zhen-Hai SHI ^{a, b} ,
Yuan HUANG ^c ,
Yu-Ze WU ^a ,
Xiao-Li CHEN ^a ,
Hua YANG ^a,,

a.
College of Chemistry and Chemical Engineering, Yan'an University, Shaanxi 716000, China
b.
College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, China
c.
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China

Corresponding author: Hua YANG, yanghua_08@163.com
Received Date: 20 July 2020
Accepted Date: 12 October 2020

Fund Project: the Natural Science Foundation of Yan'an University YDY2017-08Innovation and Entrepreneurship Training Program of College Students of China S202010719031the Natural Science Foundation of Yulin CXY-2020-065the National Natural Science Foundation of China 21763028

Figures(3)

One hexanuclear cobalt cluster [Co₂^ⅢCo₄^Ⅱ(L)₄(CH₃COO)₂(MeO)₄]·MeOH (1) was synthesized by the reaction of H₂L (H₂L = 2-((2-hydroxy-4-methoxy-benzylideneamino)methyl)phenol) and Co(OAc)₂·4H₂O in MeOH under solvothermal conditions. Complex 1 crystalizes in the triclinic space group P\begin{document}$ \overline 1 $\end{document} with a = 14.397(3), b = 16.625(3), c = 18.992(4) Å, α = 109.47(3)°, β = 99.24(3)°, γ = 112.37(3)°, D_c = 1.464 g/cm³, Z = 2, V = 3741.7(2) Å³, the final R = 0.0781 and wR = 0.1436 for 13051 observed reflections with I > 2σ(I). In the structure of 1, two cobalt ions are in 3+ oxidation states and four cobalt ions are in 2+ valence states. The six cobalt atoms are held together by six phenolate oxygen atoms from four L^2– ligands, four oxygen atoms from two chelating acetates and four μ₃-O atoms from four MeO^– groups. The six cobalt atoms are located at six corners of four defective cubanes. Thus, complex 1 displays tetracubane-like topology. Solid-state dc magnetic susceptibilities were measured for 1 in the 2.0~300 K range. Antiferromagnetic interactions were determined for 1.
- hexanuclear,
- cobalt,
- tetracubane,
- topology,
- magnetic property
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