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基于粉末X射线衍射的7-ADCA晶体结构解析 被引量:2

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摘要 在0.01°/s,步长0.01°的条件下对7-氨基-3-去乙酰氧基头孢烷酸(7-ADCA)粉末进行X射线扫描,获得较高分辨率的衍射数据.通过指标化计算确定其晶体结构所属晶系及空间群,再运用MonteCarlo模拟退火得到三维晶体结构模型,用Rietveld方法精修晶体结构和晶胞中各原子分数坐标.结果表明,该晶体属于单斜晶系,P21空间群,晶胞参数为a=13.50?,b=6.01?,c=5.91?,α=γ=90.00°,β=101.96°,Z=2,V=469.10?3.
出处 《科学通报》 EI CAS CSCD 北大核心 2006年第15期1847-1850,共4页 Chinese Science Bulletin
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