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
C4H10O Ethoxy ethane 112.1 117.0 -4.9
C2H4O Ethylene oxide 61.6 60.2 1.4
C6H5OCH3 Anisole 113.8 121.7 -7.9
CH3OCHO methyl formate 114.8 120.0 -5.2
C4H2O3 Maleic Anhydride 107.9 110.0 -2.1
C3H8O2 Methane, dimethoxy- 114.6 117.1 -2.5
C4H4O Furan 106.6 107.6 -1.0
C4H10O2 Ethane, 1,2-dimethoxy- 110.7 116.7 -6.0
C3H6O3 1,3,5-Trioxane 109.5 114.1 -4.6
CH3OCH3 Dimethyl ether 111.2 116.1 -4.9
CH2C(CH3)OCH3 1-Propene, 2-methoxy- 116.0 120.0 -4.0
C4H8O2 Ethyl acetate 115.7 120.3 -4.6
C5H10O 2H-Pyran, tetrahydro- 112.3 115.0 -2.7
C3H3NO Oxazole 103.9 107.4 -3.5
C4H8O2 1,3-Dioxane 110.9 114.6 -3.7
CH3OC2H5 Ethane, methoxy- 111.7 116.5 -4.8
C4H10O Propane, 2-methoxy- 112.5 120.2 -7.7
C5H12O Butane, 1-methoxy- 118.9 116.6 2.3
C3H2O3 vinylene carbonate 106.9 108.6 -1.7

HF/6-31G for aCOC

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


Differences greater than 4 are in the 4 bin. Differences less than -8 are in the -8 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 histogram chart histogram chart histogram chart histogram chart
-8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference C6H5OCH3 Anisole -7.9
Most positive difference C5H12O Butane, 1-methoxy- 2.3