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本帖最后由 ESCAS-team 于 2025-12-10 11:44 编辑
电子结构晶体学分析系统(ESCAS)
2025年11月,该软件持续更新中…
电子结构晶体学(electronic structure crystallography):采用实验方法(散射、能谱等)获得物质或材料的实验电子结构,并基于实验电子结构计算物化性质。
电子结构晶体学分析系统ESCAS(Electronic Structure Crystallography Analysis System)功能:
1. 单晶衍射数据分析与较正(数据校正、剔除污染数据、格式变换)
2. 电子结构精修(IAM, MM, HAR, XCW等)
3. 电子结构拓扑分析(价态、化学键、轨道、能量分解、静电势、Hirshfeld面等)
4. 物化性质计算(介电、一阶和二阶极化率等)
ESCAS快速体验
1. 准备好3个文件:晶体结构解析完整后的shelx.ins(TITL为shelx,原子命名必须是元素名加带括号的数字,如S(10),H(11)等,并删掉注释和冗余信息);shelx.hkl:衍射数据(低温测试,至少100K;结构分辨率λ/2sinθ至少达到0.6埃,最好到0.5埃或0.4埃);plot-fast-settings.txt:设置需要画电子密度图的几何平面,并将该3个文件放入主文件夹。
plot-fast-settings.txt例子:
2d C(6) C(7) C(13) 10 8(以C(6)为原点,C(6)-C(7)为x轴,C(6)-C(7)-C(13)为xy平面,长宽边长分别为10埃和8埃的长方形区域作2d图)
3d C(2) C(9) 10 (以C(2)-C(9)中点为中心,边长10埃的立方体区域作3d图)
3d 5.28 6.76 6.04 10(以直角坐标5.28 6.76 6.04为中心,边长10埃的立方体区域作3d图)
2. 双击ESCAS.exe,输入2或3进入电子结构精修选项;输入0(精修初始化),一路回车(~1min),直到又回到电子结构精修选项;输入1(精修),回车(~10-30min),完成后回到电子结构精修选项;输入51,回车(~10-30min),电子结构图片存于plot-properties文件夹中,图说明见plot-notes.txt文件。
版权声明
ESCAS对学术用途免费,该软件部分功能依赖于包括但不限于以下列出的免费软件,请在相应网站下载并安装后方可使用ESCAS软件,如有发现ESCAS包含了未经许可的软件或子程序,请及时告知ESCAS作者删除或授权。
1. XD2023: https://www.chem.gla.ac.uk/~louis/xd-home/
2. MoProSuite: https://crm2.univ-lorraine.fr/recherche/equipes/biomimic/software-moprosuite/
ESCAS下载:
参考文献
1. Long-Qi Yang, Xiao-Ming Jiang, and Guo-Cong Guo, Uncovering the“Motion-Induced Enhancement”Mechanism in Luminescent Aggregates Via Experimental Photo-Difference Electron Density, Adv. Optical Mater. 2025, 2403305.
2. Wen-Lin Wu, Yi-Bing Huang, Si-Fan Lu, Jia-Song Gao, Yan Guo, Wei-Qi Huang, Meng-Na Jing, Xiao-Ming Jiang, and Guo-Cong Guo, P4Sn (n = 3, 5, 7): Large Birefringence Enhanced by 3D Aromaticity and Packing Effect Induced Directional 𝝅–𝝅 Noncovalent Interactions, Adv. Optical Mater. 2025, 10.1002/adom.202500386.
3. Long-Qi Yang, Xiao-Ming Jiang, and Guo-Cong Guo, Light-Induced Molecular Motion Breaks Fluorescence Quenching in Aggregated π‑Conjugated Luminophores, Chem. Mater. 2025, 37, 3406.
4. J. Lu, X.-M. Jiang, J. Gao, S.-H. Wang, R.-X. Qian, F.-K. Zheng, and G.-C. Guo, Probing the Excited Electronic Configuration and Associative Excitons in Pyrene-Based X-Ray Scintillating MOF Excimer: Bridging the Gap Between Theory and Experiments, Adv. Optical Mater. 2024, 2302376
5. L.-Q. Yang, X.-M. Jiang, Y. Chen, B.-W. Liu, and G.-C. Guo, Nonlinear Optical Mechanism of beta-BaB2O4 Revealed by Experimental Electron Density, Adv. Opt. Mater. 2023, 2301897.
6. X.-M. Jiang, S.-J. Lin, C. He, B.-W. Liu, G.-C. Guo, Uncovering Functional Motif of Nonlinear Optical Material by In Situ Electron Density and Wavefunction Studies Under Laser Irradiation. Angew. Chem. Int. Ed. 2021, 60, 11799-11803.
7. Xiao-Ming Jiang, Shuiquan Deng, Myung-Hwan Whangbo and Guo-Cong Guo, Material research from the viewpoint of functional motifs, Natl. Sci. Rev. 2022, nwac017.
8. 姜小明,郭国聪,《电子结构晶体学》,科学出版社,2022年6月
9. G.-C. Guo,X.-M. Jiang,《Electronic Structure Crystallography and Functional Motifs of Materials》,Wiley/VCH,February 2024.
10. 姜小明,郭国聪,《调制与缺陷结构晶体学》,科学出版社,2025年6月
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