#p ROCCSD(T) cc-pVQZ pop=full gfprint

G2

0,1
Si
Si,1,R
H,1,SIH,2,SICC
H,1,SIH,2,SICC,3,120.,0
H,1,SIH,2,SICC,3,-120.,0
H,2,SIH,1,SICC,3,180.,0
H,2,SIH,1,SICC,6,120.,0
H,2,SIH,1,SICC,6,-120.,0

SICC=110.49912192
SIH=1.48548901
R=2.35421744