| NH2CH2COOH—H3PO4—H2O体系的结晶行为及磷酸甘氨酸的晶体结构 |
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| 引用本文： | 陈长林,周忠远.NH2CH2COOH—H3PO4—H2O体系的结晶行为及磷酸甘氨酸的晶体结构[J].云南大学学报(自然科学版),1993,15(1):64-69. |
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| 作者姓名： | 陈长林 周忠远 |
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| 作者单位： | [1]云南大学化学系 [2]中国科学院成都分析测试中心 |
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| 摘 要： | 研究了NH2CH2COOH－H3PO4－H2O体系的结晶行为，得到三个结晶相，并用X射线衍射法了磷酸甘氨酸新晶体和分子结构，晶体的空间群为P21／a;晶体学数据：a=0.9293(3)nm,b=0.788(2)mm,c=0.9623(4)nm,β=114.70(3),V=0.64078(40)nm^3,Dc=1.79g/cm^3.Z=4,F(000)=359.95(e),μ(Moka)=3.95cm^-1，并且探讨了从该体系不能得到DGP和TGP的原因。
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| 关 键 词： | 结晶 晶体结构 磷酸甘氨酸 |
The Crystallization Behaviour of NH_2CH_2COOH-H_3PO_4-H_2O System and the Crystal Structure of Glycine Phosphate |
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| Chen Changlin Yang Zonglu Wang Wenliang.The Crystallization Behaviour of NH_2CH_2COOH-H_3PO_4-H_2O System and the Crystal Structure of Glycine Phosphate[J].Journal of Yunnan University(Natural Sciences),1993,15(1):64-69. |
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| Authors: | Chen Changlin Yang Zonglu Wang Wenliang |
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| Abstract: | The crystallization behaviour of NH2CH2COOH-H3PO4-H2O system has been studied in detail. The experiments show that three different crystalline phases can be obtained from the system and the crystal and molecular structure of glycine phosphate was determined by X-ray crystallography on a four-circle diffractometer. The crystal belongs to space group P21 / a with lattice parameters: a = 0.9293(3)nm, b = 0.7887(2)nm, c = 0.9623(4)nm, 0=114.70(3) nm, V = 0.64078(40)nm3, D=1.79g/cm3. Z = 4, F(000) = 359. 95(e). The structure was refined by the block-matrix least-squares, the final R = 0.0326. The reasons why DGP phase and TGP phase cannot be abtained from NH2CH2COOH-H3PO4-H2O system have been inquired. |
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| Keywords: | Crystallization Crystal structure Glycine phosphate |
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