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[资源] 【化学软件教程】用 Gaussian 研究化学问题

【化学软件教程】用 Gaussian 研究化学问题.Exploring Chemistry with Electronic Structure Methods 2nd edition.中文版


【目录】
特别声明.......................................................................................................................................... 1
用 Gaussian 研究化学问题............................................................................................................ 1
说明........................................................................................................................................... 1
前言............................................................................................................................................. 1
运行Gaussian ............................................................................................................................. 2
Unix/Linux 平台.................................................................................................................. 2
Windows 平台...................................................................................................................... 2
输出文件.............................................................................................................................. 2
第一章 计算模型.............................................................................................................................. 4
1.1 计算化学概述...................................................................................................................... 4
分子力学理论...................................................................................................................... 4
电子结构理论...................................................................................................................... 4
密度泛函(Density Functional Methods).............................................................................. 4
1.2 化学模型(Model Chemistries)............................................................................................. 5
定义化学模型...................................................................................................................... 5
模型的组合.......................................................................................................................... 5
第二章单点能计算.......................................................................................................................... 6
2.1 能量计算设置...................................................................................................................... 6
路径...................................................................................................................................... 6
计算的名称.......................................................................................................................... 6
分子结构.............................................................................................................................. 6
多步计算.............................................................................................................................. 7
2.3 输出文件中的信息.............................................................................................................. 7
标准几何坐标。.................................................................................................................. 7
能量...................................................................................................................................... 7
分子轨道和轨道能级.......................................................................................................... 7
电荷分布.............................................................................................................................. 7
偶极矩和多极矩.................................................................................................................. 7
CPU 时间和其他................................................................................................................. 7
2.4 核磁计算.............................................................................................................................. 8
第三章 几何优化............................................................................................................................ 10
3.1 势能面................................................................................................................................ 10
3.2 寻找极小值........................................................................................................................ 10
收敛标准............................................................................................................................ 10
几何优化的输入................................................................................................................ 11
检查优化输出文件............................................................................................................ 11
3.3 寻找过渡态........................................................................................................................ 11
3.4 难处理的优化.................................................................................................................... 11
第四章频率分析............................................................................................................................ 14
4.1 预测红外和拉曼光谱........................................................................................................ 14
频率计算的输入................................................................................................................ 14
频率和强度........................................................................................................................ 14
矫正因子和零点能。........................................................................................................ 15
简正模式............................................................................................................................ 15
热力学................................................................................................................................ 16
零点能(Zero Point Energy)和内能(Thermal Energy)....................................................... 17
极化率和超极化率............................................................................................................ 17
4.2 表征稳定点........................................................................................................................ 17
下面列出了需要描述稳定点时必须考虑的问题............................................................ 18
第五章基组的影响........................................................................................................................ 21
5.1 最小基组............................................................................................................................ 21
5.2 分裂基组............................................................................................................................ 21
5.3 极化基组............................................................................................................................ 21
5.4 弥散函数(Diffuse Functions) ............................................................................................ 22
5.5 高角动量基组.................................................................................................................... 22
5.6 第三周期以后的原子的基组............................................................................................ 22
第六章选择合适的理论模型........................................................................................................ 25
6.1 使用半经验方法................................................................................................................. 25
半经验方法的局限性........................................................................................................ 25
6.2 电子相关和后SCF 方法................................................................................................... 26
Hartree-Fock 理论的限制................................................................................................. 26
MPn 方法........................................................................................................................... 26
6.3 耦合簇(Coupled CLuster)和二次结构相关(Quadratic ConfigurationInteraction)方法.. 27
密度泛函方法.................................................................................................................... 27
6.4 资源的使用........................................................................................................................ 29
第七章高精度能量模型................................................................................................................ 31
7.1 预测热化学........................................................................................................................ 31
原子化能............................................................................................................................ 31
电子亲和势........................................................................................................................ 31
离子化能............................................................................................................................ 31
质子亲和能........................................................................................................................ 31
7.2 理论模型的评价................................................................................................................ 32
7.3 G2 分子基(Molecule Set)以及缺陷及对缺陷的解释....................................................... 32
7.4 理论模型的相对精确性.................................................................................................... 32
7.5 组合方法............................................................................................................................ 33
Gaussian-1 和 Gaussian-2 理论....................................................................................... 33
完全基组方法(Complete Basis Set Motheds,CBS) ....................................................... 34
练习........................................................................................................................................... 35
第八章研究化学反应和反应性.................................................................................................... 36
8.1 预测电子密度.................................................................................................................... 36
8.2 计算反应焓变.................................................................................................................... 36
8.3 研究势能面........................................................................................................................ 37
8.4 势能面扫描........................................................................................................................ 38
8.5 反应路径分析.................................................................................................................... 38
运行IRC............................................................................................................................ 38
8.6 势能面研究实例................................................................................................................ 39
甲醛的解离........................................................................................................................ 39
优化过渡态........................................................................................................................ 39
频率分析............................................................................................................................ 39
IRC 计算............................................................................................................................ 40
计算活化能........................................................................................................................ 40
1,2 氢迁移反应............................................................................................................... 40
IRC 的注意事项................................................................................................................ 40
8.7 等构反应(Isodesmic Reactions) ........................................................................................ 41
等构反应的局限................................................................................................................ 41
第九章激发态计算........................................................................................................................ 47
9.1 运行激发态计算................................................................................................................ 47
9.2 激发态优化和频率分析.................................................................................................... 48
第十章溶液中的模型系统............................................................................................................ 55
10.1 反应场模型............................................................................................................................. 55
Onsager 模型的局限......................................................................................................... 55
10.2 运行SCRF 计算.................................................................................................................... 55
附录A.............................................................................................................................................. 59
附录B.............................................................................................................................................. 60


【全书结构】
前言
运行 Gaussian
第一部分基本概念和技术
第一章 计算模型;第二章 单点能计算;第三章 几何优化;第四章 频率分析;
第二部分 计算化学方法
第五章 基族的影响;第六章 理论方法的选择;第七章 高精度计算;
第三部分 应用
第八章 研究反应和反应性;第九章 激发态;第十章 溶液中的反应;
附录
附录 A 理论背景;附录B Gaussian 输入方法简介
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谢谢谢谢
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