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 121.9 123.4 -1.5
HCOOH Formic acid 124.1 127.1 -3.0
C4H8O2 Ethyl acetate 108.3 109.2 -0.9
CH3OC2H5 Ethane, methoxy- 107.5 107.0 0.4
CH3OC2H5 Ethane, methoxy- 111.1 112.3 -1.3
CH3OC2H5 Ethane, methoxy- 110.3 110.8 -0.5
CH3CH(CH3)ONO Isopropyl nitrite 109.5 106.4 3.1
CH3NO3 Methyl nitrate 110.4 111.9 -1.5
CH3NO3 Methyl nitrate 103.4 103.2 0.2
CH3ONO Methyl nitrite 101.8 105.1 -3.3
CH3ONO Methyl nitrite 110.0 111.2 -1.2
HFCO formyl fluoride 127.3 127.9 -0.6
HCO Formyl radical 119.5 126.0 -6.5

LSDA/3-21G* for aHCO

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


Differences greater than 5 are in the 5 bin. Differences less than -7 are in the -7 bin.

histogram chart 10
histogram chart 8
histogram chart 6
histogram chart 4 histogram chart
histogram chart 2 histogram chart histogram chart
histogram chart 0 histogram chart histogram chart histogram chart histogram chart histogram chart
-7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference HCO Formyl radical -6.5
Most positive difference CH3CH(CH3)ONO Isopropyl nitrite 3.1