Four-step spin-crossover in an oxamide-decorated metal-organic framework

作     者：Siguo Wu Sukhen Bala Zeyu Ruan Guozhang Huang Zhaoping Ni Mingliang Tong Siguo Wu;Sukhen Bala;Zeyu Ruan;Guozhang Huang;Zhaoping Ni;Mingliang Tong

作者机构：Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of EducationSchool of ChemistrySun Yat-Sen UniversityGuangzhou 510275China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2022年第33卷第3期

页      面：1381-1384页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：supported by the National Key Research and Development Program of China(No.2018YFA0306001) the National Natural Science Foundation of China(Nos.21950410521,21771200and 21773316) the Pearl River Talent Plan of Guangdong(No.2017BT01C161) 

主　　题：Spin crossover Oxamide Metal-organic framework Hofmann-type Host-guest interaction 

摘      要：Spin-crossover(SCO)complexes with multiple spin states are promising candidates for high-order magnetic storage and multiple ***,by employing the N,N -4-dipyridyloxalamide(dpo)ligand,we synthesize two Hofmann-type metal-organic frameworks(MOFs)[Fe(dpo){Ag(CN)_(2)}_(2)]·3DMF(1)and[Fe(dpo){Ag(CN)_(2)}_(2)]·0.5MeCN·2DEF(2),which exhibit guest dependent four-step SCO behaviors with the sequences of LS→~LS_(2/3)HS_(1/3)→LS_(1/2)HS_(1/2)→~LS_(3/10)HS_(7/10)→HS and LS→~LS_(2/3)HS_(1/3)→LS_(1/2)HS_(1/2)→~LS_(1/4)HS_(3/4)→HS,***,the incorporation of hydrogen-donating/hydrogen-accepting groups into the Hofmann-type MOFs may effectively explore the multi-step SCO materials by tuning hydrogen-bonding interactions.