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
HNCO Isocyanic acid 123.9 124.2 -0.3
CHSNH2 thioformamide 117.9 121.8 -3.9
CHSNH2 thioformamide 120.4 119.4 1.0
HNC hydrogen isocyanide 180.0 180.0 0.0
HNCS Isothiocyanic acid 131.7 131.9 -0.2
CH2NH Methanimine 110.5 111.0 -0.5
C2H5N Aziridine 109.3 109.6 -0.3
HNCNH diiminomethane 118.6 117.2 1.4
CH3NHCH3 Dimethylamine 108.9 109.4 -0.5
C4H5N Pyrrole 125.1 125.1 -0.0
CH3CH2NH2 Ethylamine 111.1 109.4 1.7
CH3NH2 methyl amine 111.0 109.4 1.6
CH3CSNH2 Ethanethioamide 114.4 119.4 -5.0
CH3CSNH2 Ethanethioamide 124.0 122.1 1.9
NH2CONH2 Urea 112.8 112.9 -0.1
NH2CONH2 Urea 119.2 117.7 1.6

CCSD/6-31G* for aHNC

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


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

histogram chart 10
histogram chart 8
histogram chart 6
histogram chart 4 histogram chart
histogram chart 2 histogram chart histogram chart
histogram chart 0 histogram chart histogram chart histogram chart histogram chart histogram chart histogram chart
-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference CH3CSNH2 Ethanethioamide -5.0
Most positive difference CH3CSNH2 Ethanethioamide 1.9