Zn5-Cluster-based metal-organic framework material and preparation method of modified material thereof

• Main Authors: CHEN YANHUA, LI LING, CHEN KAIHONG, ZOU JIYONG, YOU SHENGYONG
• Format: Patent
• Language: Chinese; English
• Published: 24.08.2018
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; ADHESIVES; CHEMISTRY; DYES; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; MEASURING; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC CHEMISTRY; PAINTS; PHYSICS; POLISHES; TESTING

A Zn5-cluster-based metal-organic framework material has a chemical formula of {[(CH3)2NH2]2[Zn5(L1)4(L2)4].4DMF}n. A preparation method of the Zn5-cluster-based metal-organic framework material subjects a zinc salt and an organic ligand to solvothermal reaction. The Zn5-cluster-based metal-organic framework material can be modified via rare-earth ions. As a fluorescence probe, the Zn5-cluster-based metal-organic framework material is applicable to fluorescent recognition of aniline and benzaldehyde organic small molecules, chromate and dichromate; the modified material of the Zn5-cluster-based metal-organic framework material has correspondingly improved sensitivity to organic small molecules and chromium-containing heavy metal ions. The Zn5-cluster-based metal-organic framework materialand its modified material have high crystallinity, large crystal size and good stability, the synthetic process is simple, the yield is high, and the materials have novel structure and good solvent stability and provide signi