return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Home > Geometry > Experimental > Same bond/angle many molecules OR Comparisons > Geometry > Bonds, angles > Same bond/angle many molecules

Compare Angles

18 10 26 16 25

Click on entry for experimental details.
Species Name Experimental Angle Calculated Angle Difference
NH2CONH2 Urea 119.2 123.7 -4.5
NH2CONH2 Urea 112.8 116.9 -4.1
CH3CSNH2 Ethanethioamide 124.0 122.0 2.0
CH3CSNH2 Ethanethioamide 114.4 119.1 -4.7
CH3NH2 methyl amine 111.0 110.9 0.1
C4H5N Pyrrole 125.1 125.2 -0.1
CHSNH2 thioformamide 117.9 121.9 -4.0
CHSNH2 thioformamide 120.4 119.3 1.1
HNCNH diiminomethane 118.6 125.1 -6.5
CH2NH Methanimine 110.5 112.1 -1.6
HNCS Isothiocyanic acid 131.7 148.2 -16.5

TPSSh/3-21G* for aHNC

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


Differences greater than 6 are in the 6 bin. Differences less than -18 are in the -18 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
-18 -16 -14 -12 -10 -8 -6 -4 -2 0 2 4 6
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference HNCS Isothiocyanic acid -16.5
Most positive difference CH3CSNH2 Ethanethioamide 2.0