title: 2-Fold Interpenetrating Bifunctional Cd-Metal-Organic Frameworks: Highly Selective Adsorption for CO2and Sensitive Luminescent Sensing of Nitro Aromatic 2,4,6-Trinitrophenol.
abstract: A robust primitive diamond-type topology 3-D metal-organic framework (MOF) of {[Cd4(hbhdpy)2(bdc)3(DMA)2]·(H2O)4}n(1, DMA = N,N-dimethylacetamide) was constructed from the planar secondary building units of the dinuclear cadmium clusters, Cd2(μ2-O)2, and two linear organic linkers of the new multidentate Schiff base of 4-(2-hydroxy-3-methoxy-benzyli-denehydrazino-carbonyl)-N-pyridin-4-yl-benzamide (Hhbhdpy) through the solvothermal reaction. 1 presents a 2-fold interpenetrating network along with confined narrow channels and rich acylamide groups as well as potential metal open sites for excellent selective CO2uptake over CH4/N2and high luminescent response for 2,4,6-trinitrophenol (TNP) in DMA solution under ambient conditions. With 2-amino-1,4-dicarboxy-benzene (H2bdc-NH2) replacing H2bdc, an amine-functionalized MOF of {[Cd4(hbhdpy)2(bdc-NH2)3(DMA)2]·(H2O)4}n(1-NH2) as an isomorphism of 1, was synthesized under the same reaction conditions. Compared with 1, the corresponding bifunctional features of 1-NH2is more obvious. To the best of our knowledge, it is the first reported interpenetrating Cd-MOFs with highly sensitive luminescence response for TNP molecules combined with excellent selectivity for CO2/N2and CO2/CH4.
authors.affiliation: School of Chemistry and Environment, Guangzhou Key Laboratory of Materials for Energy Conversion and Storage, Guangdong Provincial Engineering Technology Research Center for Materials for Energy Conversion and Storage, South China Normal University , Guanghzou, 510006, P. R. China.
authors.forename: Xu-Jia
authors.initials: XJ
authors.lastname: Hong
authors.affiliation: School of Chemistry and Environment, Guangzhou Key Laboratory of Materials for Energy Conversion and Storage, Guangdong Provincial Engineering Technology Research Center for Materials for Energy Conversion and Storage, South China Normal University , Guanghzou, 510006, P. R. China.
authors.forename: Qin
authors.initials: Q
authors.lastname: Wei
authors.affiliation: School of Chemistry and Environment, Guangzhou Key Laboratory of Materials for Energy Conversion and Storage, Guangdong Provincial Engineering Technology Research Center for Materials for Energy Conversion and Storage, South China Normal University , Guanghzou, 510006, P. R. China.
authors.forename: Yue-Peng
authors.identifier: http://orcid.org/0000-0003-4028-9358
authors.initials: YP
authors.lastname: Cai
authors.affiliation: School of Chemistry and Environment, Guangzhou Key Laboratory of Materials for Energy Conversion and Storage, Guangdong Provincial Engineering Technology Research Center for Materials for Energy Conversion and Storage, South China Normal University , Guanghzou, 510006, P. R. China.
authors.forename: Sheng-Run
authors.initials: SR
authors.lastname: Zheng
authors.affiliation: School of Chemistry and Environment, Guangzhou Key Laboratory of Materials for Energy Conversion and Storage, Guangdong Provincial Engineering Technology Research Center for Materials for Energy Conversion and Storage, South China Normal University , Guanghzou, 510006, P. R. China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Yu
authors.affiliation: School of Chemistry and Chemical Engineering, Sun Yat-Sen University , Guanghzou, 510275, P. R. China.
authors.forename: Yan-Zhong
authors.initials: YZ
authors.lastname: Fan
authors.affiliation: College of Chemistry and Environmental Engineering, Shaoguan University , Shaoguan, 512005, P. R. China.
authors.forename: Xian-Yan
authors.initials: XY
authors.lastname: Xu
authors.affiliation: School of Chemistry and Environment, Guangzhou Key Laboratory of Materials for Energy Conversion and Storage, Guangdong Provincial Engineering Technology Research Center for Materials for Energy Conversion and Storage, South China Normal University , Guanghzou, 510006, P. R. China.
authors.forename: Li-Ping
authors.initials: LP
authors.lastname: Si
keywords: 2,4,6-trinitrophenol; 2-fold interpenetrating Cd-MOFs; bifunctional features; luminescent sensing; metal−organic frameworks; selective adsorption