return to home page 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

Compare Angles

18 10 26 16 25

Click on entry for experimental details.
Species Name Experimental Angle Calculated Angle Difference
NH2CONH2 Urea 119.2 122.0 -2.8
NH2CONH2 Urea 112.8 116.5 -3.8
CH3CSNH2 Ethanethioamide 124.0 122.1 1.9
CH3CSNH2 Ethanethioamide 114.4 119.3 -4.9
CH3NH2 methyl amine 111.0 111.2 -0.2
CH3CH2NH2 Ethylamine 111.1 111.0 0.1
CHONH2 formamide 118.5 121.7 -3.2
CHONH2 formamide 120.0 119.4 0.6
HNCO Isocyanic acid 123.9 141.6 -17.7
C4H5N Pyrrole 125.1 125.3 -0.2
CHSNH2 thioformamide 117.9 122.1 -4.2
CHSNH2 thioformamide 120.4 119.4 1.0
CH3NHCH3 Dimethylamine 108.9 110.7 -1.8
HNCNH diiminomethane 118.6 125.5 -6.9
C2H5N Aziridine 109.3 110.0 -0.7
CH2NH Methanimine 110.5 113.1 -2.6

CISD/3-21G for aHNC

Histogram of angle differences (in degrees) vs number of species


Differences greater than 6 are in the 6 bin. Differences less than -18 are in the -18 bin.

histogram chart 10
histogram chart 8
histogram chart 6
histogram chart 4 histogram chart
histogram chart 2 histogram chart histogram chart histogram chart
histogram chart 0 histogram chart histogram chart histogram chart histogram chart histogram chart histogram chart
-18 -16 -14 -12 -10 -8 -6 -4 -2 0 2 4 6
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference HNCO Isocyanic acid -17.7
Most positive difference CH3CSNH2 Ethanethioamide 1.9