【摘要】 从猪屎豆种子中提取分离,得到单猪屎豆碱（Monocrotaline）。经X射线衍射分析测定了晶体结构。该化合物属正交品系,空间群为P2₁2₁2₁,晶体学参数:a=10.072（7）,b=11.431（1）,c=13.560（2）A,V=1561.3（7）A,Z=4,D=1.384g·cm^-1 ,μ（MoKa）=0.699mm^-1,F（000）=696,M=325.36,分子式为C₁₆H₂₃NO₆。在1≤3a（1）收集1627个衍射点,最终偏差因子R和R₀分别为0.058和0.05232。更多还原

【Abstract】 Monocrotaline was isolated from Crotalaria assannca Benth. , and characterizwd by X ray cryatallography method. The crystal belongs to anthorhomblc,space group P222 with cell paranuiers of a= 10. 072(7),b=11.431(1),c= 13. 560(2) A , V =- 1561. 3(7) A3, Z =4,D-1.38kg· cm-1 ,μ(MoKa) = 0. 990mm -1, F (000) = 696 , Mr = 325. 36 , C16H23NO6. The final R and R are 0. 058 and 0. 05232 for 1627 observed reglactions with I≤3σ(I).更多还原