A new Cu^(2+)complex that was isolated from the initial use of 5-((pyridin-4-ylmethylene)amino)isophthalic acid(PEIPH_(2))in 3d metal–organic framework(MOF)chemistry is reported.Complex{[Cu_(3)(PEIP)_(2)(5-NH_(2)-mBD...A new Cu^(2+)complex that was isolated from the initial use of 5-((pyridin-4-ylmethylene)amino)isophthalic acid(PEIPH_(2))in 3d metal–organic framework(MOF)chemistry is reported.Complex{[Cu_(3)(PEIP)_(2)(5-NH_(2)-mBDC)(DMF)]·7DMF}_(∞) denoted as Cu-PEIP·7DMF was isolated from the reaction of Cu(NO_(3))_(2)·2.5H_(2)O with PEIPH_(2) in N,N-dimethylformamide(DMF)at 100℃ and contains both the PEIP2−ligand and its 5-NH_(2)-mBDC2−fragment.After the structure and properties of Cu-PEIP were known an analogous complex was prepared by a rational synthetic method that involved the reaction of Cu(NO_(3))_(2)·2.5H_(2)O,5-((pyridin-4-ylmethyl)amino)isophthalic acid(PIPH_(2)–the reduced analogue of PEIPH_(2))and 5-NH_(2)-mBDCH_(2) in DMF at 100℃.Cu-PEIP comprises two paddle-wheel[Cu_(2)(COO)_(4)]units and exhibits a 3Dframework with a unique trinodal underlying network and point symbol(4.5^(2))_(4)(4^(2)·5^(4)·6^(4)·8^(3)·9^(2))_(2)(5^(2)·8^(4)).This network consists of pillared kgm-a layers containing a hexagonal shaped cavity with a relatively large diameter of ∼8–9Å surrounded by six trigonal shaped ones with a smaller diameter of ∼4–5Å and thus resembles the structure of HKUST-1.Gas sorption studies revealed that Cu-PEIP exhibits a 1785 m^(2) g^(−1) BET area as well as high CO_(2) sorption capacity(4.75 mmol g^(−1) at 273 K)and CO_(2)/CH4 selectivity(8.5 at zero coverage and 273 K).展开更多
基金supported by the Cyprus Research Promotion Foundation Grant ΔIΔAKTΩP/0609/43 which is co-funded by the Republic of Cyprus and the European Regional Development Fund.
文摘A new Cu^(2+)complex that was isolated from the initial use of 5-((pyridin-4-ylmethylene)amino)isophthalic acid(PEIPH_(2))in 3d metal–organic framework(MOF)chemistry is reported.Complex{[Cu_(3)(PEIP)_(2)(5-NH_(2)-mBDC)(DMF)]·7DMF}_(∞) denoted as Cu-PEIP·7DMF was isolated from the reaction of Cu(NO_(3))_(2)·2.5H_(2)O with PEIPH_(2) in N,N-dimethylformamide(DMF)at 100℃ and contains both the PEIP2−ligand and its 5-NH_(2)-mBDC2−fragment.After the structure and properties of Cu-PEIP were known an analogous complex was prepared by a rational synthetic method that involved the reaction of Cu(NO_(3))_(2)·2.5H_(2)O,5-((pyridin-4-ylmethyl)amino)isophthalic acid(PIPH_(2)–the reduced analogue of PEIPH_(2))and 5-NH_(2)-mBDCH_(2) in DMF at 100℃.Cu-PEIP comprises two paddle-wheel[Cu_(2)(COO)_(4)]units and exhibits a 3Dframework with a unique trinodal underlying network and point symbol(4.5^(2))_(4)(4^(2)·5^(4)·6^(4)·8^(3)·9^(2))_(2)(5^(2)·8^(4)).This network consists of pillared kgm-a layers containing a hexagonal shaped cavity with a relatively large diameter of ∼8–9Å surrounded by six trigonal shaped ones with a smaller diameter of ∼4–5Å and thus resembles the structure of HKUST-1.Gas sorption studies revealed that Cu-PEIP exhibits a 1785 m^(2) g^(−1) BET area as well as high CO_(2) sorption capacity(4.75 mmol g^(−1) at 273 K)and CO_(2)/CH4 selectivity(8.5 at zero coverage and 273 K).
