The reaction of 2,5-di(2H-Tetrazol-5-yl)terephthalic acid(H_(4)dtztp)and Cd^(2+)ions afforded a new threedimensional(3D)honeycomb framework,[Me_(2)NH_(2)][Cd(dtztp)0.5(HCOO)]·1.5DMF·H_(2)O(1).1 contains a un...The reaction of 2,5-di(2H-Tetrazol-5-yl)terephthalic acid(H_(4)dtztp)and Cd^(2+)ions afforded a new threedimensional(3D)honeycomb framework,[Me_(2)NH_(2)][Cd(dtztp)0.5(HCOO)]·1.5DMF·H_(2)O(1).1 contains a unique type of metal-carboxylate-azolate chain SBU and forms hexagonal tubular channels,as well as revealing high adsorption capacity for CO_(2) and C2H_(2),and significantly selective separation of CO_(2)/CH_(4),C2H_(2)/CO_(2) and C2H_(2)/CH_(4).Molecular simulations were performed to study the interactions between the framework and gas molecules.Importantly,1 shows good thermal stabilities(300℃),mechanical stabilities and chemical stabilities in acidic(pH=2)and basic(pH=12)aqueous solutions.Meanwhile,the MOF as a heterogeneous catalyst can efficiently catalyze the cyclic addition reaction between CO_(2) and different epoxides to produce cyclic carbonates with high conversion yields.In addition,the selective adsorption of the MOF for benzene over cyclohexane was also studied.展开更多
基金supported by the NSFC(21871220,21801205 and 21531007)NSF of Shaanxi province(2019JM-082).
文摘The reaction of 2,5-di(2H-Tetrazol-5-yl)terephthalic acid(H_(4)dtztp)and Cd^(2+)ions afforded a new threedimensional(3D)honeycomb framework,[Me_(2)NH_(2)][Cd(dtztp)0.5(HCOO)]·1.5DMF·H_(2)O(1).1 contains a unique type of metal-carboxylate-azolate chain SBU and forms hexagonal tubular channels,as well as revealing high adsorption capacity for CO_(2) and C2H_(2),and significantly selective separation of CO_(2)/CH_(4),C2H_(2)/CO_(2) and C2H_(2)/CH_(4).Molecular simulations were performed to study the interactions between the framework and gas molecules.Importantly,1 shows good thermal stabilities(300℃),mechanical stabilities and chemical stabilities in acidic(pH=2)and basic(pH=12)aqueous solutions.Meanwhile,the MOF as a heterogeneous catalyst can efficiently catalyze the cyclic addition reaction between CO_(2) and different epoxides to produce cyclic carbonates with high conversion yields.In addition,the selective adsorption of the MOF for benzene over cyclohexane was also studied.
