1 & H       & 2.277  & 13.595 & n=2(10.20); n=3(12.09) 
 2 & H^+     & 15.872 &	       &
 3 & H_2     & 0.015  & 15.427 & B (10.9); a/c (11.5), C (12.0) 
 4 & H_2^+   & 15.442 &	       & 
 5 & Si	     & 4.638  & 8.152  & ^1D (0.78); ^1S (1.91); ^5S^0 (4.11); ^3 P^0_J (4.90) 
 6 & Si^+    & 12.79  &	       & 
 7 & SiH     & 3.882  & 7.91   & A (2.98) 
 8 & SiH^+   & 11.79  &	       & A (3.09)
 9 & SiH_2   & 2.98^* & 8.92   & a (0.906); A (1.92); B (2.65)
10 & SiH_2^+ & 11.90  &	       & A (1.63)
11 & SiH_3   & 2.09^* & 8.01   & A (< 6.0); D (6.14); E (5.98); I (6.94) 
12 & SiH_3^+ & 10.10  &	       &
13 & SiH_4   & 0.354  & 11.00  &
14 & SiH_4^+ & 11.354 &	       & A (0.094); B (0.61); C(6.92)