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 119.2 119.9 -0.7
NH2CONH2 Urea 112.8 114.9 -2.1
C6H5NH2 aniline 114.9 116.4 -1.5
CH3CSNH2 Ethanethioamide 124.0 121.9 2.1
CH3CSNH2 Ethanethioamide 114.4 119.0 -4.6
CH3NH2 methyl amine 111.0 110.6 0.4
CH3CH2NH2 Ethylamine 111.1 110.0 1.1
CHONH2 formamide 118.5 121.7 -3.2
CHONH2 formamide 120.0 119.4 0.6
HNCO Isocyanic acid 123.9 130.6 -6.7
C4H5N Pyrrole 125.1 125.2 -0.1
CHSNH2 thioformamide 117.9 121.9 -4.0
CHSNH2 thioformamide 120.4 119.2 1.2
CH3NHCH3 Dimethylamine 108.9 111.3 -2.4
HNCNH diiminomethane 118.6 125.1 -6.5
C2H5N Aziridine 109.3 112.5 -3.2
CH2NH Methanimine 110.5 111.8 -1.3
HNCS Isothiocyanic acid 131.7 148.1 -16.4
HNC hydrogen isocyanide 180.0 180.0 0.0

B97D3/3-21G 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 2 histogram chart 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 HNCS Isothiocyanic acid -16.4
Most positive difference CH3CSNH2 Ethanethioamide 2.1