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 119.2 120.6 -1.4
NH2CONH2 Urea 112.8 115.8 -3.0
C6H5NH2 aniline 114.9 116.4 -1.5
CH3CSNH2 Ethanethioamide 124.0 121.7 2.3
CH3CSNH2 Ethanethioamide 114.4 119.4 -5.0
CH3NH2 methyl amine 111.0 113.6 -2.6
CH3CH2NH2 Ethylamine 111.1 113.3 -2.2
CHONH2 formamide 118.5 121.3 -2.8
CHONH2 formamide 120.0 119.2 0.8
HNCO Isocyanic acid 123.9 134.4 -10.5
C4H5N Pyrrole 125.1 124.9 0.2
CHSNH2 thioformamide 117.9 121.3 -3.4
CHSNH2 thioformamide 120.4 119.7 0.7
CH3NHCH3 Dimethylamine 108.9 111.6 -2.7
HNCNH diiminomethane 118.6 125.9 -7.3
C2H5N Aziridine 109.3 111.1 -1.8
CH2NH Methanimine 110.5 111.6 -1.1
HNCS Isothiocyanic acid 131.7 147.0 -15.3
HNC hydrogen isocyanide 180.0 180.0 0.0

MP2/CEP-121G for aHNC

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


Differences greater than 8 are in the 8 bin. Differences less than -16 are in the -16 bin.

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

  Species Name Difference (degrees)
Most negative difference HNCS Isothiocyanic acid -15.3
Most positive difference CH3CSNH2 Ethanethioamide 2.3