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 118.6 118.7 -0.0
CH3NH2 methyl amine 105.8 108.5 -2.7
CHSNH2 thioformamide 121.7 118.7 3.0
N2H4 Hydrazine 106.0 108.4 -2.4
NH3 Ammonia 106.7 109.1 -2.4
LiNH2 lithium amide 106.9 105.4 1.5
NH2OH hydroxylamine 103.3 105.4 -2.1
NH2 Amino radical 103.4 102.0 1.4
NH2SH Thiohydroxylamine 110.2 109.0 1.2
NH2SH Thiohydroxylamine 111.6 109.0 2.6
BH2NH2 Boranamine 114.2 113.5 0.7

TPSSh/3-21G for aHNH

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


Differences greater than 3 are in the 3 bin. Differences less than -3 are in the -3 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 histogram chart histogram chart histogram chart histogram chart
-3 -2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 3
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference CH3NH2 methyl amine -2.7
Most positive difference CHSNH2 thioformamide 3.0