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 116.1 116.5 -0.4
CH4 Methane 109.5 109.5 -0.0
CH3SH Methanethiol 110.3 108.8 1.5
CH2Br2 dibromomethane 110.9 111.4 -0.5
CH2CHF Ethene, fluoro- 120.1 119.6 0.5
CH2F2 Methane, difluoro- 112.8 113.1 -0.3
H2CS Thioformaldehyde 116.5 116.2 0.4
CH3 Methyl radical 120.0 120.0 0.0
CH2- methylene anion 103.0 103.0 0.0
CH2 Methylene 135.5 133.7 1.8
CH2 Methylene 102.4 133.7 -31.3
H2CSe Selenoformaldehyde 117.9 116.6 1.4
CH2Cl chloromethyl radical 122.6 124.2 -1.6
CH2CS Thioketene 120.3 119.5 0.8

CCSD=FULL/aug-cc-pVQZ for aHCH

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


Differences greater than 25 are in the 25 bin. Differences less than -35 are in the -35 bin.

histogram chart 14
histogram chart 12 histogram chart
histogram chart 10 histogram chart
histogram chart 8 histogram chart
histogram chart 6 histogram chart
histogram chart 4 histogram chart
histogram chart 2 histogram chart
histogram chart 0 histogram chart histogram chart
-35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference CH2 Methylene -31.3
Most positive difference CH2 Methylene 1.8