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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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You are here: Home > Geometry > Calculated > Calculated geometry OR Calculated > Geometry > Calculated geometry
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Geometry for CH3CHO (Acetaldehyde)
1A' CS
1910171554
InChI=1S/C2H4O/c1-2-3/h2H,1H3 INChIKey=IKHGUXGNUITLKF-UHFFFAOYSA-N
wB97X-D/6-311G**
Point group is Cs
| Atom |
Internal |
|
Principal |
| x (Å) |
y (Å) |
z (Å) |
|
a (Å) |
b (Å) |
c (Å) |
| C1 |
0.0000 |
0.4617 |
0.0000 |
|
0.2249 |
0.4032 |
0.0000 |
| C2 |
-0.9278 |
-0.7204 |
0.0000 |
|
-1.1612 |
-0.1773 |
0.0000 |
| O3 |
1.1980 |
0.3876 |
0.0000 |
|
1.2350 |
-0.2450 |
0.0000 |
| H4 |
-0.5020 |
1.4540 |
0.0000 |
|
0.2697 |
1.5144 |
0.0000 |
| H5 |
-0.3585 |
-1.6494 |
0.0000 |
|
-1.1165 |
-1.2660 |
0.0000 |
| H6 |
-1.5782 |
-0.6765 |
0.8794 |
|
-1.7079 |
0.1778 |
0.8794 |
| H7 |
-1.5782 |
-0.6765 |
-0.8794 |
|
-1.7079 |
0.1778 |
-0.8794 |
Atom - Atom Distances (Å)
| |
C1 |
C2 |
O3 |
H4 |
H5 |
H6 |
H7 |
| C1 |
|
1.5027 |
1.2003 |
1.1121 |
2.1413 |
2.1353 |
2.1353 |
| C2 |
1.5027 |
| 2.3972 |
2.2157 |
1.0896 |
1.0947 |
1.0947 |
| O3 |
1.2003 |
2.3972 |
| 2.0068 |
2.5636 |
3.1005 |
3.1005 |
| H4 |
1.1121 |
2.2157 |
2.0068 |
| 3.1068 |
2.5438 |
2.5438 |
| H5 |
2.1413 |
1.0896 |
2.5636 |
3.1068 |
| 1.7910 |
1.7910 |
| H6 |
2.1353 |
1.0947 |
3.1005 |
2.5438 |
1.7910 |
| 1.7588 |
| H7 |
2.1353 |
1.0947 |
3.1005 |
2.5438 |
1.7910 |
1.7588 |
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Maximum atom distance is 3.1068Å
between atoms H4 and H5.
Calculated Bond Angles (degrees) (Ignoring Hydrogens)
| atom1 |
atom2 |
atom3 |
angle |
|
atom1 |
atom2 |
atom3 |
angle |
|
C2 |
C1 |
O3 |
124.590 |
|
Calculated Bond Angles (degrees) (Involving Hydrogens)
| atom1 |
atom2 |
atom3 |
angle |
|
atom1 |
atom2 |
atom3 |
angle |
|
C1 |
C2 |
H5 |
110.372 |
|
C1 |
C2 |
H6 |
109.593 |
|
C1 |
C2 |
H7 |
109.593 |
|
C2 |
C1 |
H4 |
115.037 |
|
O3 |
C1 |
H4 |
120.373 |
|
H5 |
C2 |
H6 |
110.157 |
|
H5 |
C2 |
H7 |
110.157 |
|
H6 |
C2 |
H7 |
106.903 |
For information on specific bond angles or dihedrals
see the geometry comparison page in section
Comparisons > Geometry > Bonds, angles.