Preparation Of N-oxide Pyridine Series Photic And Magnetic Material And Research Of Their Structure

Research of the complexes deal with nitrogen heteroatom compounds ligands has been ensured as one of the major growth areas of biological chemistry,structural chemistry,medicines,catalyses and analysis,because nitrogen heteroatom compounds carried out the study on the complexes with nitrogen heteroatom compounds ligands.The main results of this dissertation are summarized below.l,The twenty-two compound deal with N-oxide methyl pyridine or related ligandshave been obtained. 2, The solution method ,Liquid diffusion,gel diffusion and hydrothermal method.areused to produce complexes deal with N-oxide methyl pyridine seriescoordination.the'y are as below:(1) The coordination compound is pyridine-2-formate acid 1-oxide:(2) The coordination compound is pyridine-2-formate acid -4-nitrol-oxide:(3) The coordination compound is pyridine-2-formate potassium(4)The coordination compound is pyridine-2-formyl salicylhydrazide -4-nitro,l-oxide; ( 5 ) The coordination compound is pyridine-2-formohydroxamic acid -4-nitro,l-oxide;(6) The methanol is used as solvent, the growth crystal is as below:(7) The picolohydrazide.and Palladium is added to formate acid solution by heating,the colour of solution become into brown and volatilization will produce,after twenty days ,a brown crystal is getten and the crystal is a crystal complex of picolohydrazide.and PalladiumTheir crystal structures of the twenty-four title complexes have been studied. Some of them are macle,for exampleCuPONA;CdPONA;HgPONA;ZnPOA;ZnPONA;CdIPONA;Five of them are single crystal.their crystal structure are as below.(1) ,iV,iV-O-Phthalylpicolylhydrazide (2) ,The title complex Pdqhz. (3), pyridine-2-formate acid -4-nitro,1 -oxide. ( 4 ), The crystal complex of Aluminium and pyridine-2-formate acid -4-nitro,1 -oxide. ( 5 ) ,The crystal complex of CuBr₂-PONA. 4,The IR frequencies and Raman frequencies of all compounds have been assignedempirically.The every compound is also characterized by UV spectra and DT. 5,The electronic structures and bond characteristics with pyridine-2-formate acid-4-nitro,l-oxide have been discussed by the ab-initio calculations with hartree-Forkmethod. 6,Determined the ratio of magnetization of CuCl₂-PONA and CuBr₂-PONA in thecondition of changed temperature;Then making a investigation on them to look fortheir rule.7 , Determined the optic property of the compounds as below : 1 , pyridine-2-formohydroxamic acid -4-nitro, 1 -oxide > 2, pyridine-2-formohydrazide -4-nitro,l-oxide > 3, pyridine-2-formyl salicylhydrazide-4-nitro,l-oxide > 4, pyridine-2-formic ether -4-nitro, 1-oxide > 5, pyridine-2-formyl propylhydrazide -4-nitro, 1-oxide > 6, pyridine-2-formyl acetichydrazide -4-nitro, 1-oxide; discover they all have non-linear optic offect and their intensity order is as above.