| q (Te) | |||
| R1 | R2 | Mulliken | NBO | 
| 
 | 
 | HF/3-21G | |
| CH3 | CH3 | +0.157 | +0.085 | 
| CH3 | NH2 | −0.118 | −0.245 | 
| NH2 | NH2 | −0.179 | −0.316 | 
| 
 | 
 | HF/3-21G* | |
| CH3 | CH3 | −0.009 | +0.110 | 
| CH3 | NH2 | −0.229 | −0.212 | 
| NH2 | NH2 | −0.301 | −0.319 | 
| 
 | 
 | B3LYP/3-21G | |
| CH3 | CH3 | +0.162 | +0.143 | 
| CH3 | NH2 | −0.027 | −0.100 | 
| NH2 | NH2 | −0.146 | −0.248 | 
| 
 | 
 | MP2/3-21G | |
| CH3 | CH3 | +0.165 | +0.096 | 
| CH3 | NH2 | −0.048 | −0.168 | 
| NH2 | NH2 | −0.152 | −0.288 |