1D Water cages in a double-walled framework based on cubic [Ni4(µ3-OH)4] units: Synthesis, structure, and magnetism

• Published in: Journal of solid state chemistry 2019-03, Vol.271, p.309-313
• Main Authors: Zhao, Fang-Hua, Li, Zhong-Lin, He, Yuan-Chun, Huang, Long-Wei, Jia, Xin-Meng, Yan, Xiao-Qing, Wang, Yu-Fei, You, Jin-Mao
• Format: Article
• Language: English
• Subjects: 1D water cages; Cubic Ni4 units; Magnetism
• ISSN: 0022-4596; 1095-726X
• DOI: 10.1016/j.jssc.2019.01.013

The hydrothermal reaction of NiSO4·6H2O and 4,4′-bis(1-imidazolyl)bipheny (bibp) has afforded a new nickel complex, {[Ni4(µ3-OH)4(µ4-SO4)(bibp)4](OH)2·12H2O}n (1). The Ni(II) centers are bridged by µ3-OH- anions into cubic [Ni4(µ3-OH)4] units, which are connected by bibp ligands and µ4-SO42- anions into a double-walled 3D framework with channels along c direction. Unusual 1D water cages with a repeat of vase-like water cluster are trapped in the channels. Magnetic studies reveal ferromagnetic behavior for complex 1, and the thermal property of 1 was also studied. This contribution describes one unique 3D double-walled framework based on cubic [Ni4(µ3-OH)4] units, which contains 1D channels occupied by 1D water cages with a repeat of vase-like water cluster and display ferromagnetic behavior. [Display omitted] •One novel double-walled 3D framework based on cubic [Ni4(µ3-OH)4] units has been synthesized and structurally characterized.•Complex 1 contains 1D channels occupied by 1D water cages with a repeat of vase-like water cluster.•Magnetic studies reveal ferromagnetic behavior for complex 1.