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Diverse Structures Based on a Heptanuclear Cobalt Cluster with 0D to 3D Metal–Organic Frameworks: Magnetism and Application in Batteries
Author(s) -
Qin BoWen,
Huang KeCheng,
Zhang Yu,
Zhou Lei,
Cui Zheng,
Zhang Kuo,
Zhang XiaoYing,
Zhang JingPing
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201705023
Subject(s) - cobalt , crystallography , isophthalic acid , metal organic framework , sbus , antiferromagnetism , chemistry , ferrimagnetism , pivalic acid , cluster (spacecraft) , metal , microporous material , magnetism , materials science , inorganic chemistry , adsorption , terephthalic acid , catalysis , organic chemistry , magnetization , physics , quantum mechanics , magnetic field , computer science , polyester , programming language , condensed matter physics
Polymetallic complexes with interesting multifunctions have attracted extensive investigation. Synthesized through the use of different cobalt salt anions and solvents, five complexes, namely [Co II 4 Co III 3 (H 2 L) 3 Cl 5 (MeOH)] ( 1 ), [Co II 4 Co III 3 (H 2 L) 3 (CH 3 COO) 4 (HCOO) ⋅ H 2 O] n ( 2 ), [Co II 4 Co III 3 (H 2 L) 3 (HCOO) 4 (NO 3 ) ⋅ 2H 2 O] n ( 3 ), [Co II 4 Co III 3 (H 2 L) 3 (bda)(CH 3 COO) 4 ⋅ 2H 2 O] n ( 4 ), and [Co II 4 Co III 3 (H 2 L) 3 (ipa)(HCOO) 3 (dmf) ⋅ H 2 O] n ( 5 ) (H 6 L=bis‐tris propane; BDA=biphenyl‐4,4′‐dicarboxylic acid; IPA=isophthalic acid; DMF= N , N ‐dimethylformamide), based on the heptanuclear {Co II 4 Co III 3 } cluster with structures from 0D to 3D metal–organic frameworks (MOFs) have been solvothermally synthesized. Compound 1 is the first 0D heptanuclear cluster based on H 6 L. Compound 2 crystallizes in the chiral space group P 2 1 2 1 2 1 and consists of a 1D chiral helical chain. Complex 3 exhibits a 3D network structure. Compound 4 possesses a 1D zigzag‐like chain structure. Finally, compound 5 was obtained as a 3D microporous structure. Compounds 1 , 3 , and 4 display dominant ferrimagnetic interactions whereas compounds 2 and 5 exhibit antiferromagnetic interactions. Moreover, the Co 3 O 4 prepared by calcining compound 2 presents a reversible capacity of 1122.9 mA h g −1 at 0.2 A g −1 after 100 cycles and an excellent rate capability, which suggests that coordination compounds with a 1D chain structure are outstanding precursors for preparing anode materials for lithium ion batteries.