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
Si(CH3)4 tetramethylsilane 109.2 111.3 -2.1
CH3SiH3 methyl silane 110.9 111.0 -0.1
SiH2(CH3)2 dimethylsilane 110.9 111.1 -0.3
SiH2(CH3)2 dimethylsilane 111.1 111.1 0.0

mPW1PW91/6-31G* for aHCSi

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


Differences greater than 0.200000000000001 are in the 0.200000000000001 bin. Differences less than -2.2 are in the -2.2 bin.

histogram chart 10
histogram chart 8
histogram chart 6
histogram chart 4
histogram chart 2
histogram chart 0 histogram chart histogram chart histogram chart
-2.2 -2 -1.8 -1.6 -1.4 -1.2 -1 -0.8 -0.6 -0.4 -0.2 4.44089209850063E-16 0.200000000000001
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference Si(CH3)4 tetramethylsilane -2.1
Most positive difference SiH2(CH3)2 dimethylsilane 0.0