摘要
以甘氨酸和碱式碳酸锌为原料合成了甘氨酸锌螯合物 ,最佳工艺条件为 :n (甘氨酸 )∶n(碱式碳酸锌 ) =1 0 0∶0 35 ,温度 95℃ ,反应时间 8h ,产率≥ 92 %。用元素分析、红外光谱、热重差热分析、X射线粉末衍射对螯合物进行了表征 ,其组成为 [Zn(NH2 CH2 COO) 2 ]·H2 O。X射线粉末衍射数据指标化结果表明所合成的螯合物属于单斜晶系 ,晶胞参数为 :a =0 76 42nm ,b =1 182 7nm ,c =1 6 46 5nm ,β=81 75° ,V =1 472 7nm3 。
The complex of bisglycinato zinc(Ⅱ) monohydrate was synthesized with glycine and basic zinc carbonate as raw materials.The optimum technological conditions were that molar ratio of glycine to basic zinc carbonate was 1 00∶0 35,reaction temperature was 95 ℃,and reaction time was 8 h.The yield was over 92%.Composition and structure of the complex were characterized by elementary analysis,infrared spectrum,thermogravimetric and differential thermal analyses and X ray powder diffraction.Its composition is [Zn(NH 2CH 2COO) 2]·H 2O.First stage in the thermal decomposition process of the complex showed the presence of one molecule of crystalline water.The results of indexization of the X ray powder diffraction data indicated that the crystal structure of the complex belongs to monoclinic system.The lattice parameters are: a =0 7642 nm, b =1 1827 nm, c =1 6465 nm,β=81 75°, V =1 4727 nm 3.
出处
《精细化工》
EI
CAS
CSCD
北大核心
2001年第7期391-393,共3页
Fine Chemicals
