新型丝氨酸锌螯合物的晶体结构研究  

Study on crystal structure of a novel serine zinc chelate

作　　者：陈光伟 桑诚诚 彭红星 陶建军 周长虹 苗永光 CHEN Guang-wei;SANG Cheng-cheng;PENG Hong-xing;TAO Jian-jun;ZHOU Chang-hong;MIAO Yong-guang

机构地区：[1]长沙兴嘉生物工程股份有限公司,湖南长沙410000

出　　处：《饲料研究》2024年第22期149-154,共6页Feed Research

摘　　要：试验旨在得到一种新型丝氨酸锌螯合物。通过调节化学反应的原料物质的量之比、反应温度、反应时间合成了新型丝氨酸锌晶体,采用X-射线单晶衍射仪、X-射线粉末衍射仪、红外光谱仪、元素分析仪等仪器对合成得到的丝氨酸锌螯合物进行了定性和定量研究。结果显示,丝氨酸锌为2∶1型,化学式为(C3H6NO3)2Zn,晶体为单斜晶系,空间群为P21,晶胞参数a=5.643 6 (14)Å,b=8.822 (2)Å,c=9.499 (2)Å,α=90°,β=96.664 (4)°,γ=90°,Z=2,V=469.74 (19)Å3。锌与丝氨酸中的氮及氧配位形成五配位的五元螯合环,分子内、分子间存在强烈的氢键。研究表明,该螯合物制备方法过程简单、锌含量高、产物结构新颖、收率高,为饲料行业生产高含量的有机微量元素螯合锌提供了一种新思路。The research aimed to obtain a novel serine zinc chelate.A new type of serine zinc crystal was synthesized by adjusting the molar ratio of raw materials,reaction temperature,and reaction time.The synthesized serine zinc chelate was qualitatively and quantitatively studied using instruments such as X-ray single crystal diffractometer,X-ray powder diffractometer,infrared spectrometer,and elemental analyzer.The results showed that serine zinc was a 2∶1 type with a chemical formula of(C3H6NO3)2Zn,and the crystal was a monoclinic system with space group P21.The lattice parameters were a=5.6436(14)Å,b=8.822(2)Å,c=9.499(2)Å,α=90°,β=96.664(4)°,γ=90°,Z=2,and V=469.74(19)Å3.Zinc coordinates with nitrogen and oxygen in serine to form a five-membered chelating ring with five coordination positions,and there were strong hydrogen bonds between molecules and molecules.The study indicates that the preparation method of this chelate compound is simple,with high zinc content,novel product structure,and high yield,providing a new idea for the production of high content organic trace element chelated zinc in the feed industry.

关 键 词：丝氨酸锌 五配位 锌含量 

分 类 号：S816.7[农业科学—饲料科学]