Preparation method and application of binuclear Ir (III) metal-organic supramolecular cage compound

Abstract

The invention belongs to the technical field of fine chemical engineering, and relates to a preparation method and application of a binuclear Ir (III) metal-organic supramolecular cage compound. According to the preparation method, aliphatic diamine A is used as a connecting body; L1 and L2 are used as pre-assembled metal-based ligand Ir (III) complexes, then sodium borohydride is added to reduceSchiff base -C=N- double bonds in the obtained cage structure into -CH-NH-, finally, the compound with the metal-organic cage structure is prepared, and the synthetic route of the compound is: A+L1 toA-L1 or A+L2 to A-L2. The preparation process is simple, the design idea is novel, the yield of the target compound is high, the obtained functional material is stable in chemical property, and the pre-assembled body is easy to modify. The compound A-L1 or A-L2 is used in oxidation of 1-oxo-2,3-dihydro-1-indene-2-methyl formate to generate 2-hydroxy-1-oxo-2,3-dihydro-1-indene-2-methyl carboxyl ate, the yield is as high as 83%, and the compound A-L1 or A-L2 is easier to put into practical application.

Description

technical field [0001] The invention relates to a preparation method and application of a binuclear Ir(III) metal-organic supramolecular cage compound, belonging to the technical field of fine chemicals. Background technique [0002] In 1987, Professor Lehn and Professor Cram proposed the concept of "supramolecules", which is to study complex and ordered supramolecules with specific structures and functions formed by the combination of two or more chemical species through the interaction of intermolecular forces A science of systems. Among them, metal-organic supramolecular cage compounds, as a new type of molecular crystal materials, are widely used in the fields of identification, catalysis, stabilization of active substances and drug delivery, and have gradually played an important role in the production of chemical industry. [0003] In 2009, Nitschke's research group reported a water-soluble cage compound in Science magazine, which can be used to stabilize active white...

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Problems solved by technology

However, the above method also has the following limitations: (1) The coordination bond-directed supramolecular self-assembly process needs to obtain building blocks with specific coordination sites, and the introduction of coordination sites may encounter low yields, Difficulties in synthesis, etc.

(2) The unique directionality of the coordination bond and the generally rigid ligands involved limit the randomness of the coordination assembly, making it difficult to synthesize more complex supramolecular assemblies; (3) the metal coordination The way is relatively fixed, the sources of ligands are limited, and the ways of assembly changes are few; (4) The research on designing and synthesizing ligands with special energy functions to construct three-dimensional supramolecular structures to achieve their functionality is still relatively lacking.

However, these methods still have some problems, such as high cost, complex catalyst structure, low efficiency, and difficult preparation.

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