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 119.2 124.0 -4.8
NH2CONH2 Urea 112.8 116.5 -3.7
C6H5NH2 aniline 114.9 120.9 -5.9
CH3CSNH2 Ethanethioamide 124.0 122.2 1.8
CH3CSNH2 Ethanethioamide 114.4 118.9 -4.5
CH3NH2 methyl amine 111.0 115.7 -4.7
CH3CH2NH2 Ethylamine 111.1 114.9 -3.8
HNCO Isocyanic acid 123.9 147.2 -23.3
C4H5N Pyrrole 125.1 125.1 -0.0
CHSNH2 thioformamide 117.9 121.6 -3.7
CHSNH2 thioformamide 120.4 119.5 0.9
CH3NHCH3 Dimethylamine 108.9 113.0 -4.1
HNCNH diiminomethane 118.6 126.9 -8.2
C2H5N Aziridine 109.3 111.1 -1.8
CH2NH Methanimine 110.5 112.8 -2.3
HNC hydrogen isocyanide 180.0 180.0 0.0

B3LYP/CEP-31G for aHNC

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


Differences greater than 35 are in the 35 bin. Differences less than -25 are in the -25 bin.

histogram chart 10
histogram chart 8
histogram chart 6 histogram chart
histogram chart 4 histogram chart histogram chart
histogram chart 2 histogram chart histogram chart
histogram chart 0 histogram chart histogram chart histogram chart histogram chart
-25 -20 -15 -10 -5 0 5 10 15 20 25 30 35
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference HNCO Isocyanic acid -23.3
Most positive difference CH3CSNH2 Ethanethioamide 1.8