Ligand-regulated unusual nickel clusters: A centrosymmetric dicubane Ni_(8) and a tetrahedral Ni_(10) cluster  

作　　者：Ying Zou Qiang Gao Na Sun Songde Han Xiaoyu Li Guoming Wang 

机构地区：[1]College of Chemistry and Chemical Engineering,Qingdao University,Qingdao 266071,China [2]School of Environmental and Chemical Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China [3]The Key Laboratory of Inorganic Molecule-Based Chemistry of Liaoning Province,Shenyang University of Chemical Technology,Shenyang 110142,China

出　　处：《Chinese Chemical Letters》2023年第3期522-525,共4页中国化学快报（英文版）

基　　金：financial support from the National Natural Science Foundation of China(Nos.22101148,22071126);the Natural Science Foundation of Shandong Province(No.ZR2021QB008)。

摘　　要：Based on the reported Fe clusters constructed by using N-tris(hydroxymethyl)methylglycine (H_5thmmg),herein,we explored the use of H_5 thmmg for Ni chemistry.Successfully,an octanuclear Ni cluster,Ni_(8)O(H_(3)thmmg)_6·2NO_(3)(Ni_(8)) was acquired under solvothermal condition.Its metallic core is comprised of two centrosymmetric cubanes Ni_(4)(μ_(3)-O)_(3)(μ_6-O) linked by sharing an O^(2-)ion and six H_(3)thmmg^(2-) ligands are attached to the periphery.Interestingly,the 2-mercapto-5-amino-1,3,4-thiadiazole (Hmat) ligand with both N and S donor atoms was introduced into the synthesis of Ni_(8) cluster,a disparate decanuclear nickel cluster,Ni_(10)O(OH)_(2)(H_(3)thmmg)_(4)(mat)_(8)(Ni_(10)) is assembled by H_(3)thmmg^(2-) and mat^(-) mixed ligands.The metal core of Ni_(10)cluster is a pudgy tetrahedron,whose four vertexes are four Ni^(2+)ions and the remanent six Ni^(2+) ions are located in the tetrahedral cavity.Four H_(3)thmmg^(2-) ligands are located at the four vertices of the tetrahedron and 8 mat^(-) ligands are all on the six sides of the tetrahedron.The different synthetic conditions contribute to the different configurations.Magnetic studies indicate that both complexes Ni_(8) and Ni_(10) display antiferromagnetic interactions.

关 键 词：POLYMETALLIC Nickel clusters Ligand-regulated Synthesis Magnetic properties 

分 类 号：O641.4[理学—物理化学]