Synthses, Properties And Characterization Of The Polycarboxylic NanoMOFs

MOFs have been rapidly growing due to their potential applications in a variety of important fields. Their structures, consisting of repeating ligands interconnected with metallic nodes, can be conveniently synthesized in high yields from the appropriate metal salts and bifunctional ligand precursors. In addition, they are interesting due to chemically adjustable properties and high internal surface areas, which provide researchers with a network structure that can be deliberately and easily modified for many applications, including catalysis, gas storage, separations, photonics and drug delivery,three new MOFs were synthesized by solvent thermal method.1. A luminescent complex,[Bmim]2[(ZnBr3)2(bpy)](1)(bpy=4,4’-bipyridine, bmim=1-butyl-3-methyl imidazolium), has been synthesized through ionothermal reaction and characterized systematically. The crystal data: a=8.1735(19) A,b=15.215(4) A, c=14.7000(3) A, a=9O°, β=90.88°, γ=90°, V=1827.8(7) A3, Z=4,The structure of1is characterized by an isolated structure in monoclinic space group P21/c. As shown in1consists of discrete [(ZnBr3)2(bpy)]2-anions and bmim+(1-butyl-3-methyl imidazolium) cations.2. The compound [Cd(AIP)(4,4’-bpy)]n(2)(H2AIP=5-aminoisophthalic acid,4,4’-bpy=4,4’-bpyridine) has been synthesized through solvothermal reaction and characterized systematically. The crystal data:a=14.191(4) A,b=17.282(5) A, c=11.720(3) A, a=90°, β=90°, γ=90°, V=2874.23(7) A3, Z=8.1crystallizes in the space group Pbam.1exhibits a Cd(II) binuclear structure unit, that connected a2D plane by aminoisophthalic acid, and the three-dimensional layer of columnar MOF by the2D plane through4,4’-bpy. There is one independent molecule in the asymmetric unit.3. The compound [Cd(AIP)(2,2’-bpy)]n(3)(H2AIP=5-aminoisophthalic acid,2,2’-bpy=2,2’-bpyridine) has been synthesized through solvothermal reaction and characterized systematically. The crystal data:a=24.25(5) A,b=14.48(3) A, c=14.40(3) A, a=90°,β=90°,γ=90°, V=5112.71(7) A3, Z=l. the structure of2is characterized by an isolated structure in monoclinic space group C2221.3exists a Cd(II) binuclear structure unit, and the primitive form a wavy two-dimensional plane connected by aminoisophthalic acid,2,2’-bpy resemble paddle-shaped vertical distribution in the two sides of the plane, these layers stack in an ABAB-fashion along the a axis through the π...π stacking interactions.The compound2have a special function due to its3D layer of columnar structure. In this paper, the results showed that the sensitivity of probe was high and the effect of nanocrystal structure and fluorescence was not changed, so it can be used in micro elements.