return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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Compare Angles

18 10 26 16 25

Click on entry for experimental details.
Species Name Experimental Angle Calculated Angle Difference
NH2CONH2 Urea 119.2 124.2 -5.0
NH2CONH2 Urea 112.8 117.1 -4.3
CH3CSNH2 Ethanethioamide 124.0 122.2 1.8
CH3CSNH2 Ethanethioamide 114.4 119.3 -4.9
CH3NH2 methyl amine 111.0 114.7 -3.7
C4H5N Pyrrole 125.1 125.1 0.0
CHSNH2 thioformamide 117.9 121.9 -4.0
CHSNH2 thioformamide 120.4 119.6 0.8
HNCNH diiminomethane 118.6 127.0 -8.4
CH2NH Methanimine 110.5 113.2 -2.7
HNCS Isothiocyanic acid 131.7 150.2 -18.5

TPSSh/6-31G for aHNC

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


Differences greater than 4 are in the 4 bin. Differences less than -20 are in the -20 bin.

histogram chart 10
histogram chart 8
histogram chart 6
histogram chart 4 histogram chart
histogram chart 2 histogram chart
histogram chart 0 histogram chart histogram chart histogram chart histogram chart histogram chart histogram chart
-20 -18 -16 -14 -12 -10 -8 -6 -4 -2 0 2 4
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference HNCS Isothiocyanic acid -18.5
Most positive difference CH3CSNH2 Ethanethioamide 1.8