Sulfur-containing Schiff base Zn-Na coordination polymer and preparation method and application thereof
A technology of coordination polymer and sulfur-containing Schiff base, which is applied in chemical instruments and methods, luminescent materials, antibacterial drugs, etc., can solve the problems of few research reports, etc. stable effect
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Embodiment 1
[0041] Example 1 The synthesis of one-dimensional chain-like sulfur-containing Schiff base Zn-Na coordination polymers, the reaction steps are as follows:
[0042] Add 0.72mmol (162.19mg) o-vanillin thiosemicarbazone, 0.54mmol (about 118.54mg) zinc acetate, 0.8mmol (97.95mg) sodium perchlorate to 24mL N,N'-dimethylformamide , in a mixed solvent of acetonitrile and water (volume ratio 2:3:1), heated and refluxed in a water bath for 4 hours, adjusted the pH value to 6-8 with ammonia water, continued heating and stirring, controlled the temperature at 70°C, and reacted for 16 hours to obtain a colorless The solution was filtered, sealed, and naturally volatilized at room temperature. After three weeks, a light yellow crystal suitable for X-ray single crystal structure analysis was precipitated, with a yield of 52.36%. M.P.302~304℃; IR main absorption peaks are: 3245(w), 3434(m), 3275(m), 2912(w), 2805(w), 1580(vs), 1492(vs), 1439(vs ), 1296(s), 1232(s), 1140(m), 1113(m), 9676(m)...
Embodiment 2
[0044] Synthesis of One-dimensional Chain Sulfur-Containing Schiff Base Zn–Na Coordination Polymers
[0045] Add 0.64mmol (144.17mg) o-vanillin thiosemicarbazone, 0.56mmol (about 166.59mg) zinc nitrate hexahydrate, 0.54mmol (76.71mg) sodium sulfate to 30mL N,N'-dimethylacetamide , in a mixed solvent of acetonitrile and tetrahydrofuran (volume ratio 1:3:2), heat and reflux in a water bath for 3-5 hours, use ethylenediamine to adjust the pH value to 6-8, continue heating and stirring, control the temperature at 80°C, and react for 15-5 hours. After 18 hours, a light yellow solution was obtained, which was filtered, sealed, and evaporated naturally at room temperature. After three weeks, a light yellow crystal suitable for X-ray single crystal structure analysis was precipitated, with a yield of 53.62%.
Embodiment 3
[0047] Synthesis of One-dimensional Chain Sulfur-Containing Schiff Base Zn–Na Coordination Polymers
[0048] Add 0.48mmol (108.13mg) o-vanillin thiosemicarbazone, 0.48mmol (about 137.35mg) zinc sulfate heptahydrate, 0.48mmol (65.32mg) sodium acetate to 25mL N,N'-dimethylacetamide , in a mixed solvent of tetrahydrofuran and ethanol (volume ratio 5:10:8), heat and reflux in a water bath for 3 to 5 hours, adjust the pH value to 6 to 8 with triethylamine, continue heating and stirring, and control the temperature at 70 to 80°C. After ~20 hours, a light yellow solution was obtained, which was filtered, sealed, and naturally volatilized at room temperature. After three weeks, a light yellow crystal suitable for X-ray single crystal structure analysis was precipitated, with a yield of 54.21%.
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