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
CH2CHCH2CH3 1-Butene 119.9 111.9 8.0
C5H8 1,4-Pentadiene -122.2 111.5 -233.7
CH2CHCH2CH2Cl 1-Butene, 4-chloro- 123.1 124.5 -1.4

LSDA/6-31G(2df,p) for dCCCC

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


Differences greater than 350 are in the 350 bin. Differences less than -250 are in the -250 bin.

histogram chart 10
histogram chart 8
histogram chart 6
histogram chart 4
histogram chart 2
histogram chart 0 histogram chart histogram chart
-250 -200 -150 -100 -50 0 50 100 150 200 250 300 350
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference C5H8 1,4-Pentadiene -233.7
Most positive difference CH2CHCH2CH3 1-Butene 8.0