Xie Yaxin, Zhang Wanwan, Yang Ming, Zhao Zhiying, He Zhangzhen
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.
University of Chinese Academy of Sciences, Beijing 100049, China.
Inorg Chem. 2020 Oct 5;59(19):13827-13830. doi: 10.1021/acs.inorgchem.0c02708. Epub 2020 Sep 24.
A new hydroxyl sulfate-fluoride compound, LuCu(SO)(OH)F·HO, was obtained using a hydrothermal method. This compound is found to crystallize in a monoclinic space group of 2/, exhibiting a uniform chain structure along the axis, in which the chains are composed of elongated CuO octahedra and further separated by SO tetrahedra and Lu ions. The shortest Cu-Cu distance inside the chains is ∼3.394(1) Å, while that between neighboring chains is ∼7.878(1) Å. Magnetic and heat capacity measurements indicate that this compound does not possess long-range magnetic order until 2 K. The fitting of spin-chain models suggests a strong intrachain interaction and a weak interchain interaction ' with a small value of |'/| < 3.20(2) × 10, indicating that LuCu(SO)(OH)F·HO may be a nearly ideal one-dimensional spin-/-chain system.
采用水热法获得了一种新型羟基硫酸氟化物化合物LuCu(SO)(OH)F·HO。该化合物结晶于单斜空间群2/，沿轴呈现均匀的链状结构，其中链由拉长的CuO八面体组成，并进一步被SO四面体和Lu离子隔开。链内最短的Cu-Cu距离约为3.394(1) Å，而相邻链之间的距离约为7.878(1) Å。磁性和热容量测量表明，该化合物在2 K以下不具有长程磁有序。自旋链模型的拟合表明，链内相互作用很强，链间相互作用较弱，|'/|的值很小，小于3.20(2)×10，这表明LuCu(SO)(OH)F·HO可能是一个近乎理想的一维自旋-/-链系统。
