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 122.6 123.3 -0.7
CH3CONH2 Acetamide 122.0 122.3 -0.3
C3H7NO dimethylformamide 123.5 125.5 -2.0
CHONH2 formamide 124.7 124.8 -0.1
HNCO Isocyanic acid 172.6 172.7 -0.1
HCONHCH3 N-methylformamide 124.6 123.7 0.9
C3H3NO Oxazole 115.0 115.0 0.0

M06-2X/6-31G* for aNCO

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


Differences greater than 4 are in the 4 bin. Differences less than -2 are in the -2 bin.

histogram chart 10
histogram chart 8
histogram chart 6
histogram chart 4
histogram chart 2 histogram chart
histogram chart 0 histogram chart histogram chart histogram chart histogram chart
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 3 3.5 4
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference C3H7NO dimethylformamide -2.0
Most positive difference HCONHCH3 N-methylformamide 0.9