High nuclear dissimilar metal cluster-organic framework compound as well as preparation method and application thereof
A technology of organic framework and heterometal, which is applied in the field of high-nuclear heterometallic cluster-organic framework compound and its preparation, can solve the shortage of organic framework compound and other problems, and achieve the effect of high specific surface area, good crystallinity and high adsorption effect
Pending Publication Date: 2022-06-24
FUZHOU UNIV
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[0005] The object of the present invention is to provide a high-nuclear heterometallic cluster-organic framework compound and its preparation method and application to solve the problem of scarcity of molecular sieve-like heterometallic cluster-organic framework compounds based on high-nuclear heterometallic clusters
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[0019] Example: Na 3 [Cd 5 Cu 6 L 4 (Ac) 11 (H 2 O)][Cd 4 Cu 6 L 4 O(Ac) 8 (H 2 O) 2 ]·Solvent Preparation of High Nuclear Heterometallic Clusters-Organic Framework Compounds
[0020] 0.35mol Cd(Ac) 2 ·4H 2 O, 0.1mol CuI, 0.18mol CH 3 COONa, 0.11mol H 3 L and 50mol N,N-dimethylacetamide were added to a 20mL glass bottle in turn, stirred for 1 hour, reacted at 80°C for 72 hours, and then cooled to room temperature to obtain Na 3 [Cd 5 Cu 6 L 4 (Ac) 11 (H 2 O)][Cd 4 Cu 6 L4 O(Ac) 8 (H 2 O) 2 ]·solvent high nuclear heterometallic clusters - organic framework compounds.
[0021] Photographed Na 3 [Cd 5 Cu 6 L 4 (Ac) 11 (H 2 O)][Cd 4 Cu 6 L 4 O(Ac) 8 (H 2 O) 2 ]·solvent crystal photos of high nuclear heterometallic clusters-organic framework compounds, such as figure 1 shown.
[0022] The samples were characterized by X-ray single crystal diffraction and the results are as follows figure 2 shown. The crystal belongs to the cubic crystal sys...
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Abstract
The invention discloses a high nuclear dissimilar metal cluster-organic framework compound, the molecular formula of the compound is Na3 [Cd5Cu6L4 (Ac) 11 (H2O)] [Cd4Cu6L4O (Ac) 8 (H2O) 2]. Solvent, L3-is a deprotonated ligand, H3L is 2-(hydroxymethyl)-2-(pyridine-4-yl)-1, 3-propylene glycol, and H3L is 2-(hydroxymethyl)-2-(pyridine-4-yl)-1, 3-propylene glycol. The high nuclear dissimilar metal cluster-organic framework compound is crystallized in a cubic system, the space group is I213, and a secondary building unit of the high nuclear dissimilar metal cluster-organic framework compound is composed of a cluster A and a cluster B; the cluster A is a {Cd4Cu6L4O (Ac) 8 (H2O) 2} super tetrahedron cluster, and the cluster B is a {Cd5Cu6L4 (Ac) 11 (H2O)} deformed tetrahedron cluster; the middle of the cluster A is a Lindeqvist-like {Cu6O18} cluster formed by six tetragonal pyramid-shaped {CuO5} sharing four vertexes, and the periphery of the cluster is two {CdO7} fragments and two {CdO6N} fragments covering the {Cu6O18} cluster by sharing one edge to form a ten-core super-tetrahedron dissimilar metal cluster; the cluster B is a Lindeqvist-like {Cu6O18} cluster, and four non-adjacent surfaces with symmetrical Td of the cluster B are covered by two {CdO7}, one {CdO6N} and one dual-core cadmium cluster; the cluster A and the cluster B are connected and assembled through a ligand to form a framework structure with ANA type molecular sieve topology.
Description
technical field [0001] The invention relates to the technical field of porous adsorption separation materials and crystal materials, in particular to a high nuclear heterometallic cluster-organic framework compound and a preparation method and application thereof. Background technique [0002] Porous materials have important applications in many industrial production fields such as molecular adsorption and separation storage, catalysis, environmental protection, and biomedicine. Among the many porous materials, molecular sieve materials based on inorganic Si-O, Al-O, P-O and other tetrahedral units are representative. Such materials still have an important impact on our current production and life. [0003] Metal-organic frameworks are a new class of inorganic-organic hybrid crystalline porous materials, which have the characteristics of diverse material compositions, rich structural types, adjustable pore structure rules, and easy post-modification. They are considered to ...
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IPC IPC(8): C07F19/00B01J20/22B01J31/22B01J20/28
CPCC07F19/00B01J20/226B01J31/223B01J20/28066B01J20/28064C07B2200/13B01J2531/16B01J2531/27
Inventor 李新雄彭霜郑寿添
Owner FUZHOU UNIV