| Substituent | Descriptor | Position 1 | Position 2 |
| Fluoro | F | + | + |
| Chloro | Cl | + | + |
| Bromo | Br | + | + |
| Iodo | I | + | + |
| Hydroxy | OH | + | + |
| Cyano | CN | + | + |
| Methoxy | OCH3 | + | + |
| Acetoxy | OCOCH3 | + | + |
| Amino | NH2 | + | + |
| Methyl | CH3 | + | + |
| Brommethyl | CH2Br | + | + |
| CHO | CHO | + | + |
| Acetyl | COCH3 | + | + |
| Trimethylstannyl | SnMe3 | + | + |
| tert. Butyl | CMe3 | + | + |
| -NCS | NCS | + | + |
| Nitro | NO2 | + | + |
| N,N-Dimethylamino | NMe2 | + | + |
| Ethoxy | OC2H5 | + | + |
| Ethyl | C2H5 | + | + |
| Tricyanomethyl | C(CN)3 | + | + |
| NHCOCH3 | NHCOCH3 | + | + |
| CH2Sn(CH3)3 | CH2SNMe3 | + | + |
| CH2Pb(CH3)3 | CH2PbMe3 | + | + |
| Trimethylsilyl | SiMe3 | + | + |
| Trimethylgermanyl | GeMe3 | + | + |
| Trimethylplumbyl | PbMe3 | + | + |
| Neopentyl | Neop | + | + |
| C6H11CO | C6H11CO | + | + |
| CH2COOH | CH2COOH | + | - |
| CH2OH | CH2OH | + | - |
| Dinaphtylphosphyl | PNA2 | + | - |
| N- Phenylamino | NHPh | + | - |
| N-(p- methoxy-)phenylamino | NHPhpOCH3 | + | - |