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Computational Chemistry Comparison and Benchmark DataBase
Release 22 (May 2022) Standard Reference Database 101
National Institute of Standards and Technology
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Geometry for Si2H2 (disilyne)
1A1 C2V
1910171554
InChI=1S/H4Si2/c1-2/h1-2H INChIKey=
PBEPBE/6-31+G**
Point group is C2v
Atom |
Internal |
|
Principal |
x (Å) |
y (Å) |
z (Å) |
|
a (Å) |
b (Å) |
c (Å) |
Si1 |
0.0000 |
1.1167 |
-0.0533 |
|
1.1167 |
0.0000 |
-0.0533 |
Si2 |
0.0000 |
-1.1167 |
-0.0533 |
|
-1.1167 |
0.0000 |
-0.0533 |
H3 |
0.9926 |
0.0000 |
0.7469 |
|
0.0000 |
0.9926 |
0.7469 |
H4 |
-0.9926 |
0.0000 |
0.7469 |
|
0.0000 |
-0.9926 |
0.7469 |
Atom - Atom Distances (Å)
|
Si1 |
Si2 |
H3 |
H4 |
Si1 |
| 2.2335 |
1.6949 |
1.6949 |
Si2 |
2.2335 |
| 1.6949 |
1.6949 |
H3 |
1.6949 |
1.6949 |
| 1.9851 |
H4 |
1.6949 |
1.6949 |
1.9851 |
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Maximum atom distance is 2.2335Å
between atoms Si1 and Si2.
Calculated Bond Angles (degrees) (Ignoring Hydrogens)
atom1 |
atom2 |
atom3 |
angle |
|
atom1 |
atom2 |
atom3 |
angle |
Calculated Bond Angles (degrees) (Involving Hydrogens)
atom1 |
atom2 |
atom3 |
angle |
|
atom1 |
atom2 |
atom3 |
angle |
Si1 |
Si2 |
H4 |
48.785 |
|
Si2 |
Si1 |
H3 |
48.785 |
For information on specific bond angles or dihedrals
see the geometry comparison page in section
Comparisons > Geometry > Bonds, angles.