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
SiH2(CH3)2 dimethylsilane 107.8 108.1 -0.3
Si2H6 disilane 109.5 107.8 1.7
SiH2Cl2 dichlorosilane 111.3 112.5 -1.2
SiH4 Silane 109.5 109.5 -0.0
SiH3Cl chlorosilane 110.6 111.0 -0.4
SiH3F monofluorosilane 110.6 109.3 1.4
SiH3 Silyl radical 110.5 108.1 2.4
SiH3+ Silyl cation 120.0 120.0 -0.0
SiH2F2 difluorosilane 114.6 110.2 4.3

MP2=FULL/STO-3G for aHSiH

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


Differences greater than 4.5 are in the 4.5 bin. Differences less than -1.5 are in the -1.5 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 histogram chart histogram chart histogram chart
-1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
Angle difference calc. - exp. (degrees)

  Species Name Difference (degrees)
Most negative difference SiH2Cl2 dichlorosilane -1.2
Most positive difference SiH2F2 difluorosilane 4.3