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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 H2OH2O (water dimer)
1A' CS
1910171554
InChI=1S/H4O2/c1-3-2/h1H,2H2 INChIKey=CIFBQZMBEZYWOK-UHFFFAOYSA-N
PBEPBEultrafine/cc-pVTZ
Point group is C1
| Atom |
Internal |
|
Principal |
| x (Å) |
y (Å) |
z (Å) |
|
a (Å) |
b (Å) |
c (Å) |
| H1 |
0.5487 |
-0.0024 |
0.0740 |
|
-0.0279 |
0.5480 |
0.0740 |
| O2 |
1.5184 |
0.1147 |
0.0273 |
|
0.0438 |
1.5221 |
0.0273 |
| O3 |
-1.4045 |
-0.1204 |
-0.0357 |
|
-0.0548 |
-1.4086 |
-0.0357 |
| H4 |
1.8484 |
-0.7641 |
-0.2119 |
|
-0.8494 |
1.8108 |
-0.2119 |
| H5 |
-1.6832 |
0.1994 |
0.8384 |
|
0.2776 |
-1.6721 |
0.8384 |
| H6 |
-1.6254 |
0.6128 |
-0.6336 |
|
0.6879 |
-1.5950 |
-0.6336 |
Atom - Atom Distances (Å)
| |
H1 |
O2 |
O3 |
H4 |
H5 |
H6 |
| H1 |
|
0.9779 |
1.9599 |
1.5333 |
2.3678 |
2.3677 |
| O2 |
0.9779 |
| 2.9331 |
0.9686 |
3.3039 |
3.2509 |
| O3 |
1.9599 |
2.9331 |
| 3.3207 |
0.9715 |
0.9716 |
| H4 |
1.5333 |
0.9686 |
3.3207 |
| 3.8084 |
3.7604 |
| H5 |
2.3678 |
3.3039 |
0.9715 |
3.8084 |
|
1.5300 |
| H6 |
2.3677 |
3.2509 |
0.9716 |
3.7604 |
1.5300 |
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Maximum atom distance is 3.8084Å
between atoms H4 and H5.
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 |
|
H1 |
O2 |
H4 |
103.948 |
|
H1 |
O3 |
H5 |
102.461 |
|
H1 |
O3 |
H6 |
102.447 |
|
O2 |
H1 |
O3 |
173.143 |
|
H5 |
O3 |
H6 |
103.889 |
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For information on specific bond angles or dihedrals
see the geometry comparison page in section
Comparisons > Geometry > Bonds, angles.