|
★声明:本文仅代表个人观点,笔者学识有限,资料整理过程中难免存在疏漏谬误,请不吝指正。 指标化率很差但最终数据很好的晶体数据案例1 其衍射图如图1所示(由APEX6 [1]呈现)。 ▲图1 衍射图 计算晶胞时其指标化率如图2所示,很差。 ▲图2 指标化率 然而,按照上述指标化结果进行数据还原,最终解析和精修结果良好,如图3所示(由Olex2[2]呈现),无AB级警报(验证报告由PLATON [3]呈现)。 ▲图3 最终结果 参考文献 [1] Bruker(2024). APEX6 (Version 2025.6-0). Program for Data Collection on AreaDetectors. Bruker AXS Inc., Madison, Wisconsin, USA. [2] Dolomanov,O. V.; Bourhis, L. J.; Gildea, R. J.; Howard, J. A. K.; Puschmann, H. OLEX2: A Complete Structure Solution,Refinement and Analysis Program. J. Appl. Cryst. 2009, 42, 339–341. DOI: 10.1107/S0021889808042726. [3] (a) Spek, A. L. Single-CrystalStructure Validation with the Program PLATON.J. Appl. Cryst. 2003, 36, 7–13. DOI: 10.1107/S0021889802022112.(b) Spek, A. L. StructureValidation in Chemical Crystallography. ActaCryst. 2009, D65, 148–155. DOI:10.1107/S090744490804362X. (c) Spek, A. L. What Makes a Crystal Structure Report Valid? Inorg. Chim. Acta 2018, 470, 232–237. DOI:10.1016/j.ica.2017.04.036. (d) Spek, A. L. checkCIFValidation ALERTS: What They Mean and How to Respond. Acta Cryst. 2020, E76, 1–11. DOI: 10.1107/S2056989019016244.
|