基准评价关尼有机硫酸结合框架用于封装客体的结构确定
Anna Yusov1, Alexandra M Dillon1, Mohammad T Chaudhry2
1Department of Chemistry and Molecular Design Institute, New York University, New York City, New York 10003, United States.
概括
关尼有机硫酸盐 (GS) 框架为分子结构的确定提供了具有成本效益的结晶方法,成功率为97%. 这种方法补充了adamantoid陪伴者,为分析具有挑战性的化合物提供了宝贵的工具.
科学领域:
- 晶体学 晶体学是指结晶学.
- 超分子化学 超分子化学
- 有机化学 有机化学
背景情况:
- 单晶X射线衍射 (SCXRD) 对于分子结构的确定至关重要,但面临的挑战是液体,油,或不良晶体化合物.
- 之前的工作引入了关尼有机硫酸盐 (GS) 框架,作为一种成本效益高的方法来结晶各种客分子,从而实现绝对配置赋值.
- 亚达曼类分子伴侣也被用作宿主分子来确定结构.
研究的目的:
- 对GS结晶方法进行比较分析,对比adamantoid分子陪伴者.
- 评估GS宿主在确定具有挑战性的客分子结构方面的有效性.
- 在结构确定中评估GS宿主和亚达曼类伴侣的互补性.
主要方法:
- 用于客分子结晶的酸有机硫酸盐 (GS) 结合框架.
- 采用阿达曼托伊德分子陪伴物作为替代宿主系统.
- 使用各种客分子进行了GS宿主和adamantoid陪伴者的对比比较.
- 使用单晶X射线衍射 (SCXRD) 分析了由此产生的纳入化合物.
主要成果:
- 含有GS的化合物,特别是两个特定宿主,具有较低的R1值和Flack参数,具有最小或可管理的障碍.
- 该GS方法取得了97%的成功率,成功确定了32个尝试中的31个客分子的结构.
- 一些客分子被GS宿主成功分离,当adamantoid陪伴者失败时,反之亦然,表明了互补的结合能力.
- GS宿主在分子结构确定方面表现出高效率和可靠性.
结论:
- 关尼有机硫酸盐 (GS) 框架对于通过SCXRD进行分子结构确定是非常有效和可靠的,它补充了像阿达曼托伊德陪伴者这样的现有方法.
- GS方法提供了一种具有成本效益和可访问的方法来解决具有挑战性的晶体结构,特别是对于液体,油或不良晶体化合物.
- GS宿主和adamantoid陪伴者的互补性质建议在综合结构确定策略中同时使用这两种.
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