To obtain materials capable of efficiently separating acetylene(C_(2)H_(2))from carbon dioxide(CO_(2))and eth-ylene(C_(2)H_(4)),In this work,based on the pore space partition strategy,a pacs-metal-organic framework(MO...To obtain materials capable of efficiently separating acetylene(C_(2)H_(2))from carbon dioxide(CO_(2))and eth-ylene(C_(2)H_(4)),In this work,based on the pore space partition strategy,a pacs-metal-organic framework(MOF):(NH_(2)Me_(2))_(2)[Fe_(3)(μ_(3)-O)(bdc)_(3)][In(FA)_(3)Cl_(3)](Fe‑FAIn‑bdc)was synthesized successfully by using the metal-formate com-plex[In(FA)_(3)Cl_(3)]^(3-)as the pore partition units,where bdc^(2-)=terephthalate,FA-=formate.Owing to the pore partition effect of this metal-organic building block,fruitful confined spaces are formed in the network of Fe‑FAIn‑bdc,endowing this MOF with superior separation performance of acetylene and carbon dioxide.According to the adsorp-tion test,this MOF exhibited a high adsorption capacity for C_(2)H_(2)(50.79 cm^(3)·g^(-1))at 298 K and 100 kPa,which was much higher than that for CO_(2)(29.99 cm^(3)·g^(-1))and C_(2)H_(4)(30.94 cm^(3)·g^(-1))under the same conditions.Ideal adsorbed solution theory(IAST)calculations demonstrate that the adsorption selectivity of Fe‑FAIn‑bdc for the mixture of C_(2)H_(2)/CO_(2)and C_(2)H_(2)/C_(2)H_(4)in a volume ratio of 50∶50 was 3.08 and 3.65,respectively,which was higher than some reported MOFs such as NUM-11 and SNNU-18.CCDC:_(2)453954.展开更多
A new three-dimensional indium phosphite,[In2(HPO3)4](NH3CH2CH2NH3),was prepared under hydrothermal conditions via using ethylenediamine as a template.Its structure was solved by singlecrys-tal X-ray diffraction.The c...A new three-dimensional indium phosphite,[In2(HPO3)4](NH3CH2CH2NH3),was prepared under hydrothermal conditions via using ethylenediamine as a template.Its structure was solved by singlecrys-tal X-ray diffraction.The compound crystallizes in a monoclinic system,space group P2/n,with cell parameters a=0.91405(5)nm,b=0.91984(5)nm,c=0.96120(5)nm,β=115.9950(10)°,V=0.72640(7)nm3,Z=2,R1=0.0249,wR2=0.0650,GOF=1.044.The inorganic topological structure is built up from the vertex linking of InO6 octahedral and HPO3 pyramidal tetrahedral units,forming eight-membered ring channels along the [506] direction.The diprontonated ethylenediamine molecules are entrapped in eight-membered ring channels.展开更多
文摘To obtain materials capable of efficiently separating acetylene(C_(2)H_(2))from carbon dioxide(CO_(2))and eth-ylene(C_(2)H_(4)),In this work,based on the pore space partition strategy,a pacs-metal-organic framework(MOF):(NH_(2)Me_(2))_(2)[Fe_(3)(μ_(3)-O)(bdc)_(3)][In(FA)_(3)Cl_(3)](Fe‑FAIn‑bdc)was synthesized successfully by using the metal-formate com-plex[In(FA)_(3)Cl_(3)]^(3-)as the pore partition units,where bdc^(2-)=terephthalate,FA-=formate.Owing to the pore partition effect of this metal-organic building block,fruitful confined spaces are formed in the network of Fe‑FAIn‑bdc,endowing this MOF with superior separation performance of acetylene and carbon dioxide.According to the adsorp-tion test,this MOF exhibited a high adsorption capacity for C_(2)H_(2)(50.79 cm^(3)·g^(-1))at 298 K and 100 kPa,which was much higher than that for CO_(2)(29.99 cm^(3)·g^(-1))and C_(2)H_(4)(30.94 cm^(3)·g^(-1))under the same conditions.Ideal adsorbed solution theory(IAST)calculations demonstrate that the adsorption selectivity of Fe‑FAIn‑bdc for the mixture of C_(2)H_(2)/CO_(2)and C_(2)H_(2)/C_(2)H_(4)in a volume ratio of 50∶50 was 3.08 and 3.65,respectively,which was higher than some reported MOFs such as NUM-11 and SNNU-18.CCDC:_(2)453954.
文摘A new three-dimensional indium phosphite,[In2(HPO3)4](NH3CH2CH2NH3),was prepared under hydrothermal conditions via using ethylenediamine as a template.Its structure was solved by singlecrys-tal X-ray diffraction.The compound crystallizes in a monoclinic system,space group P2/n,with cell parameters a=0.91405(5)nm,b=0.91984(5)nm,c=0.96120(5)nm,β=115.9950(10)°,V=0.72640(7)nm3,Z=2,R1=0.0249,wR2=0.0650,GOF=1.044.The inorganic topological structure is built up from the vertex linking of InO6 octahedral and HPO3 pyramidal tetrahedral units,forming eight-membered ring channels along the [506] direction.The diprontonated ethylenediamine molecules are entrapped in eight-membered ring channels.
