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- 25/03/1997
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Get PDF报道Na[Sb(cdta)]·3H2O(cdta=1,2-环二胺四乙酸)的晶体结构并着重讨论了Sb(Ⅲ)原子的畸变五角双锥配住多面作的描述问题。根据分子力学计算,孤对电子不同取向引起的能量变化与一般氢键键能大小在同一数量级。基于缺位配位多面体的结构参数,对Sb-cdta,-edta和-Pdta等螯合物系列的螯合强度与抗肿瘤活性的关联进行了讨论指出Sb—N平均键长>2.32与N…NJ距离>2.88可作为这类Sb(Ⅲ)螯合物呈现抗肿瘤活性的直接判据。晶体数据:C14H24N2NaO11Sb,Mr=541,09,单斜晶系,空间群个可观测衍射用于最小二乘修正,最终偏离因子R=0.051
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