The G and F Matrix Elements of Typical Molecules

In the following tables, F represents F matrix elements in the GVF field, whereas F denotes those in the UBF field. In the latter, F = — -j F was assumed for all cases, and the molecular tension (Refs. 89-91 of Chapter 1) was ignored. 

Here/ra denotes interaction between Ar and Aa having a common bond (e.g., Arj and Aai2 or Aasi) / denotes interaction between Ar and Aa having no common bonds (e.g., Ari and Aa2s) see Fig. 1.20c. 

The symbols and/ are defined in VII.2 /e denotes the force constant for the out-of-plane mode (see Fig. 1.20f). 

The symbol f denotes interaction between two Ar perpendicular to each other frr denotes interaction between two Ar on the same straight line. In addition, a square-planar XY4 molecule has two out-of-plane vibrations in the Axu and Bxu species. 

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