TITL CH4 see-saw to sq. planar C2v to D4h bending
PAR 0 DIST  10
FV1 45 s 4.4
KEYW EL CM NC WF RO
ORIG  C
INT 1 2 H 1.2 90 0.
INT 1 3 H 1.2 -90 0.
INT 1 4 H 1.2 FV1 90.
INT 1 5 H 1.2 FV1 -90.
END