title: Surfactant media to grow new crystalline cobalt 1,3,5-benzenetricarboxylate metal-organic frameworks.
abstract: In this report, three new metal-organic frameworks (MOFs), [Co3(μ3-OH)(HBTC)(BTC)2Co(HBTC)]·(HTEA)3·H2O (NTU-Z30), [Co(BTC)]·HTEA·H2O (NTU-Z31), [Co3(BTC)4]·(HTEA)4 (NTU-Z32), where H3BTC = 1,3,5-benzenetricarboxylic acid, TEA = triethylamine, and NTU = Nanyang Technological University, have been successfully synthesized under surfactant media and have been carefully characterized by single-crystal X-ray diffraction, powder X-ray diffraction, thermogravimetric analysis, and IR spectromtry. NTU-Z30 has an unusual trimeric [Co3(μ3-OH)(COO)7] secondary building unit (SBU), which is different from the well-known trimeric [Co3O(COO)6] SBU. The topology studies indicate that NTU-Z30 and NTU-Z32 possess two new topologies, 3,3,6,7-c net and 2,8-c net, respectively, while NTU-Z31 has a known topology rtl type (3,6-c net). Magnetic analyses show that all three materials have weak antiferromagnetic behavior. Furthermore, NTU-Z30 has been selected as the heterogeneous catalyst for the aerobic epoxidation of alkene, and our results show that this material exhibits excellent catalytic activity as well as good stability. Our success in growing new crystalline cobalt 1,3,5-benzenetricarboxylate MOFs under surfactant media could pave a new road to preparing new diverse crystalline inorganic materials through a surfactant-thermal method.
authors.affiliation: College of Chemistry and Materials Science, The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials, Centre for Nano Science and Technology, Anhui Normal University , Wuhu 241000, P. R. China.
authors.forename: Hai-Sheng
authors.initials: HS
authors.lastname: Lu
authors.forename: Linlu
authors.initials: L
authors.lastname: Bai
authors.forename: Wei-Wei
authors.initials: WW
authors.lastname: Xiong
authors.forename: Peizhou
authors.initials: P
authors.lastname: Li
authors.forename: Junfeng
authors.initials: J
authors.lastname: Ding
authors.forename: Guodong
authors.initials: G
authors.lastname: Zhang
authors.forename: Tom
authors.initials: T
authors.lastname: Wu
authors.forename: Yanli
authors.initials: Y
authors.lastname: Zhao
authors.forename: Jong-Min
authors.initials: JM
authors.lastname: Lee
authors.forename: Yanhui
authors.initials: Y
authors.lastname: Yang
authors.forename: Baoyou
authors.initials: B
authors.lastname: Geng
authors.forename: Qichun
authors.initials: Q
authors.lastname: Zhang
mesh_terms: D003035:Cobalt / Q000737:chemistry*; D018360:Crystallography, X-Ray; D008958:Models, Molecular; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D013501:Surface-Active Agents / Q000737:chemistry*; D014233:Tricarboxylic Acids / Q000737:chemistry*
chemical_list: D009942:Organometallic Compounds; D013501:Surface-Active Agents; D014233:Tricarboxylic Acids; D003035:Cobalt; C069849:trimesic acid