Largest 3d-4f 196-nuclear Gd_(158)Co_(38)clusters with excellent magnetic cooling

作     者：Ning-Fang Li Xi-Ming Luo Jia Wang Ji-Lei Wang Hua Mei You Song Yan Xu 

作者机构：College of Chemical EngineeringState Key Laboratory of Materials-Oriented Chemical EngineeringNanjing Tech UniversityNanjing 210009China Coordination Chemistry InstituteState Key Laboratory of Coordination ChemistryNanjing UniversityNanjing 210093China 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：2022年第65卷第8期

页      面：1577-1583页

核心收录：

学科分类：07[理学] 070304[理学-物理化学(含∶化学物理)] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：supported by the National Key R&D Program of China(2018YFA0306004) the National Natural Science Foundation of China(21571103,21973038) Jiangsu Province(BK20191359) the Joint Fund for Regional Innovation and Development(U20A2073)。 

主　　题：multi-anions template high-nuclearity 3d-4f cluster magnetic refrigeration 

摘      要：It is a meaningful and challenging work for structural and synthetic chemists to isolate nano-sized high-nuclearity cluster-molecules.In this work,two largest hetero-metallic nano-clusters Gd_(158)Co_(38) were obtained via the“multi-anions-templatemethod.Different from the reported giant hollow-nano-clusters,the Ln_(158) core in Gd_(158)Co_(38)(the protein-sized nano-clusters,ca.4.3 nm×3.6 nm×3.5 nm)has the highest Ln nuclear number,which is integrated by twelve halide ions(with the form of icosahedron)as key templates,while Co ions(as 3d metals)are located in its periphery.This emergence indicates a novel structure form of non-open Ln-containing high-nuclearity clusters,and affords a consummate pattern to analyse and assemble the complex cluster-molecules.In addition,Gd_(158)Co_(38)@Cl_(12)breaks the record magnetic entropy change of 3d-4f clusters with−∆S_(m)^(max)=46.95 J kg^(−1)K^(−1)at 7.0 T,2.0 K.