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 119.2 123.1 -3.9
NH2CONH2 Urea 112.8 117.2 -4.4
C6H5NH2 aniline 114.9 118.7 -3.8
CH3CSNH2 Ethanethioamide 124.0 121.7 2.3
CH3CSNH2 Ethanethioamide 114.4 119.6 -5.2
CH3NH2 methyl amine 111.0 114.4 -3.4
CH3CH2NH2 Ethylamine 111.1 113.7 -2.6
CHONH2 formamide 118.5 121.3 -2.8
CHONH2 formamide 120.0 119.5 0.5
HNCO Isocyanic acid 123.9 137.7 -13.8
C4H5N Pyrrole 125.1 124.9 0.2
CHSNH2 thioformamide 117.9 121.4 -3.5
CHSNH2 thioformamide 120.4 119.9 0.5
CH3NHCH3 Dimethylamine 108.9 112.0 -3.1
HNCNH diiminomethane 118.6 128.3 -9.6
C2H5N Aziridine 109.3 111.7 -2.4
CH2NH Methanimine 110.5 113.4 -2.9
HNCS Isothiocyanic acid 131.7 150.3 -18.6
HNC hydrogen isocyanide 180.0 180.0 0.0

MP2/LANL2DZ 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 histogram chart
histogram chart 0 histogram chart histogram chart 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 -18.6
Most positive difference CH3CSNH2 Ethanethioamide 2.3