|    | 
Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology | 
| You are here: Home > Geometry > Experimental > Same bond/angle many molecules OR Comparisons > Geometry > Bonds, angles > Same bond/angle many molecules | |
| Species | Name | Experimental Angle | Calculated Angle | Difference | 
|---|---|---|---|---|
| H2CO | Formaldehyde | 116.1 | 114.0 | 2.2 | 
| CH4 | Methane | 109.5 | 109.5 | -0.0 | 
| C2H6 | Ethane | 108.0 | 108.2 | -0.2 | 
| C2H4 | Ethylene | 117.6 | 116.1 | 1.5 | 
| CH3NH2 | methyl amine | 108.4 | 108.2 | 0.2 | 
| C3H6 | Cyclopropane | 114.5 | 115.0 | -0.5 | 
MP4/3-21G* for aHCH
| 10 |   | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
||||||||||||||
| 8 |   | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
||||||||||||||
| 6 |   | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
||||||||||||||
| 4 |   | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
||||||||||||||
| 2 |   | 
    
  | 
  
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
|||||||||||||||
| 0 |   | 
  
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
  
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
  
  | 
    
  | 
||||||||||||||||||
| -0.5 | 0 | 0.5 | 1 | 1.5 | 2 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | ||||||||||||||||||||||||||||
| Angle difference calc. - exp. (degrees) | ||||||||||||||||||||||||||||||||||||||||
| Species | Name | Difference (degrees) | |
|---|---|---|---|
| Most negative difference | C3H6 | Cyclopropane | -0.5 | 
| Most positive difference | H2CO | Formaldehyde | 2.2 |