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 112.1 115.4 -3.3
C2H4O Ethylene oxide 61.6 60.2 1.4
C6H5OCH3 Anisole 113.8 120.8 -7.0
CH3OCHO methyl formate 114.8 117.9 -3.1
C4H2O3 Maleic Anhydride 107.9 110.2 -2.3
C3H8O2 Methane, dimethoxy- 114.6 114.6 0.0
C4H4O Furan 106.6 107.0 -0.4
C4H10O2 Ethane, 1,2-dimethoxy- 110.7 114.9 -4.2
C3H6O3 1,3,5-Trioxane 109.5 112.6 -3.1
CH3OCH3 Dimethyl ether 111.2 114.0 -2.8
CH2C(CH3)OCH3 1-Propene, 2-methoxy- 116.0 118.2 -2.2
C4H8O2 Ethyl acetate 115.7 118.5 -2.8
C5H10O 2H-Pyran, tetrahydro- 112.3 113.2 -0.9
C3H3NO Oxazole 103.9 107.2 -3.3
C4H8O2 1,3-Dioxane 110.9 113.0 -2.1
CH3OC2H5 Ethane, methoxy- 111.7 114.7 -3.0
C4H10O Propane, 2-methoxy- 112.5 118.0 -5.5
C5H12O Butane, 1-methoxy- 118.9 114.7 4.2
C3H2O3 vinylene carbonate 106.9 108.3 -1.4

HF/3-21G for aCOC

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
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
-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 C6H5OCH3 Anisole -7.0
Most positive difference C5H12O Butane, 1-methoxy- 4.2