title: Design and synthesis of stable cobalt-based weak ferromagnetic framework with large spin canting angle.
abstract: It still remains a great challenge to design and construct framework-structured weak ferromagnets with large canting angle which is an effective approach for high performance magnets. According to the strategy of antisymmetric interaction causing spin canting, we report the design of four cobalt compounds, which were tested by X-ray single crystal diffraction, TGA, PXRD, and magnetic measurement. Single-crystal structure analysis reveals that compound 1 has a 2D structure, complex 2 has a 3,4-connected 3D framework, and complex 3 exhibits a 3D net structure with rare 3,5-connected 2-nodal β-SnF2 topology and the solvent MeOH trapped in the 3D channels as guests. The magnetic property of 3 is spin canting just as designed, with TN about 4.0 K and large canting angle of 14.8°. Highly stable compound 3 sustains its framework in air for more than 12 months, in which the guest MeOH molecules can be replaced by water to form complex 4.
authors.affiliation: School of Chemistry and Chemical Engineering, Tianjin University of Technology , No. 391 Binshui Xilu Road, Tianjin 300384, P. R. China.
authors.forename: Ting
authors.initials: T
authors.lastname: Liu
authors.forename: Su-Mei
authors.initials: SM
authors.lastname: Gao
authors.forename: Long-Yang
authors.initials: LY
authors.lastname: Xu
authors.forename: Jiong-Peng
authors.initials: JP
authors.lastname: Zhao
authors.forename: Fu-Chen
authors.initials: FC
authors.lastname: Liu
authors.forename: Hai-Liang
authors.initials: HL
authors.lastname: Hu
authors.forename: Zhen-Hui
authors.initials: ZH
authors.lastname: Kang