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
H2CO Formaldehyde 121.9 121.9 0.0
C2H4O Ethylene oxide 114.7 115.1 -0.4
CH2CHCHO Acrolein 121.3 120.9 0.4
CH2CHCHO Acrolein 120.2 120.9 -0.7
CH3CH2CHO Propanal 120.5 120.1 0.4
HCO Formyl radical 119.5 28.7 90.8

CCSD/6-311G* for aHCO

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


Differences greater than 110 are in the 110 bin. Differences less than -10 are in the -10 bin.

histogram chart 10
histogram chart 8
histogram chart 6
histogram chart 4 histogram chart
histogram chart 2 histogram chart
histogram chart 0 histogram chart histogram chart
-10 0 10 20 30 40 50 60 70 80 90 100 110
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference CH2CHCHO Acrolein -0.7
Most positive difference HCO Formyl radical 90.8