Zeolite porous metal bis(imidazole) coordination polymers and preparation method thereof

摘要

The present invention discloses zeolite metal bis(imidazole) coordination polymers and preparation method thereof. The new class of zeolite coordination polymers of the present invention is a chemical compound with the following general chemical formula {[M(BIm)]×xDMF×yC₂H₆O×zH₂O}_∞, in which when M=Zn, x=0.9, y=0, z=0; when M=Cu, x=1.2, y=0, z=0; when M=Mn, x=2.0, y=0, z=0; when M=Ni, x=0.4, y=1.2, z=1.0, BIm is 1,2-bis((5H-imidazol-4-yl)methylene)hydrazine, DMF is N,N-dimethyl formamide, H₂O is water. A solvothermal method or slow diffusion is used on the compounds to obtain crystals of high purity. The coordination polymers of the present invention have good thermal stability, and have strong adsorption performance for CO₂ under conditions of 0° C. and normal pressure as adsorbent materials.