title: A microporous metal-organic framework containing an exceptional four-connecting 4(2)6(4) topology and a combined effect for highly selective adsorption of CO2 over N2.
abstract: Reported here is a new microporous metal-organic framework, namely [Zn(2)(L)(btc)(Hbtc)] [NH(2)(CH(3))(2)]·(DMF)(2)(H(2)O)(4) (1), which is synthesized solvo(hydro)thermally by the self-assembly of Zn(NO(3))(2), N(4),N(4)-di(pyridin-3-yl)-[1,1'-biphenyl]-4,4'-dicarboxamide (L) and 1,3,5-benzenetricarboxylate acid (H(3)btc). Its topology can be described as a four-connecting 4(2)6(4) matrix containing both tetrahedral metal and ligand nodes. Interestingly, such a matrix has the same topology symbol as that observed in the well known sodalite (SOD) net, but the td10 of 434 is different from the td10 of 791 for the SOD net, indicative of an exceptional four-connecting 4(2)6(4) net. Another outstanding point is the highly selective adsorption of CO(2) over N(2), possibly contributed by a combined effect from the charged skeleton, the existence of functional groups of -CONH- and -COOH in 1.
authors.affiliation: College of Biology, Chemistry and Material Science, East China Institute of Technology, Fuzhou, Jiangxi, China.
authors.forename: Yuan-cheng
authors.initials: YC
authors.lastname: Qin
authors.forename: Xue-feng
authors.initials: XF
authors.lastname: Feng
authors.forename: Feng
authors.initials: F
authors.lastname: Luo
authors.forename: Gong-ming
authors.initials: GM
authors.lastname: Sun
authors.forename: Yu-mei
authors.initials: YM
authors.lastname: Song
authors.forename: Xiao-zhao
authors.initials: XZ
authors.lastname: Tian
authors.forename: Hai-xiao
authors.initials: HX
authors.lastname: Huang
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhu
authors.forename: Zi-jun
authors.initials: ZJ
authors.lastname: Yuan
authors.forename: Ming-biao
authors.initials: MB
authors.lastname: Luo
authors.forename: Shu-juan
authors.initials: SJ
authors.lastname: Liu
authors.forename: Wen-yuan
authors.initials: WY
authors.lastname: Xu
mesh_terms: D000327:Adsorption; D002245:Carbon Dioxide / Q000737:chemistry*; D008670:Metals / Q000737:chemistry*; D009584:Nitrogen / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D016062:Porosity; D015032:Zinc / Q000737:chemistry*
chemical_list: D008670:Metals; D009942:Organometallic Compounds; D002245:Carbon Dioxide; D015032:Zinc; D009584:Nitrogen