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请问高斯中对振动计算会出现三部分力常数,想知道他们之间都什么关系
力常数第一次出现的地方(NO1)
, 1 2 3 A' A' A'
Frequencies -- 410.4464 620.1512 2469.4234
Red. masses -- 34.8764 1.0531 1.0371
Frc consts -- 3.4617 0.2386 3.7262
这个地方给出这三个原子的力(NO2)
Center Atomic Forces (Hartrees/Bohr)
Number Number X Y Z
-------------------------------------------------------------------
1 29 0.000015174 0.000000000 0.000005543
2 16 0.000083506 0.000000000 -0.000007000
3 1 -0.000098680 0.000000000 0.000001456
-------------------------------------------------------------------
接着又分别给出笛卡尔坐标和内坐标下的力常数,(NO3)
Force constants in Cartesian coordinates:
1 2 3 4 5
1 0.754426D-02
2 0.000000D+00 -0.283154D-03
3 0.139549D-01 0.000000D+00 0.138514D+00
4 -0.464779D-02 0.000000D+00 -0.124626D-01 0.214795D+00
5 0.000000D+00 0.282784D-03 0.000000D+00 0.000000D+00 -0.815863D-03
6 -0.286608D-02 0.000000D+00 -0.130844D+00 0.518039D-01 0.000000D+00
7 -0.289647D-02 0.000000D+00 -0.149236D-02 -0.210147D+00 0.000000D+00
8 0.000000D+00 0.000000D+00 0.000000D+00 0.000000D+00 0.533080D-03
9 -0.110888D-01 0.000000D+00 -0.766951D-02 -0.393413D-01 0.000000D+00
6 7 8 9
6 0.149949D+00
7 -0.489378D-01 0.213044D+00
8 0.000000D+00 0.000000D+00 -0.533449D-03
9 -0.191049D-01 0.504301D-01 0.000000D+00 0.267744D-01
FormGI is forming the generalized inverse of G from B-inverse, IUseBI=4.
Force constants in internal coordinates:
1 2 3
1 0.139774D+00
2 0.345149D-02 0.225477D+00
3 0.204044D-01 0.190794D-01 0.969444D-01
就想知道,笛卡尔坐标和内坐标下的力常数和给出的力那个表之间有什么样的关系,如何计算的,
非常感谢指导
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