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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 C5H8O2 (Acetylacetone)
1A C2
1910171554
InChI=1S/C5H8O2/c1-4(6)3-5(2)7/h3H2,1-2H3 INChIKey=YRKCREAYFQTBPV-UHFFFAOYSA-N
mPW1PW91/6-31G**
Point group is C2
| Atom |
Internal |
|
Principal |
| x (Å) |
y (Å) |
z (Å) |
|
a (Å) |
b (Å) |
c (Å) |
| C1 |
0.0000 |
0.0000 |
1.0115 |
|
0.0000 |
-0.0000 |
1.0115 |
| C2 |
0.0000 |
1.2304 |
0.1045 |
|
1.2221 |
-0.1429 |
0.1045 |
| C3 |
0.0000 |
-1.2304 |
0.1045 |
|
-1.2221 |
0.1429 |
0.1045 |
| C4 |
-1.3535 |
1.7419 |
-0.3066 |
|
1.5729 |
-1.5466 |
-0.3066 |
| C5 |
1.3535 |
-1.7419 |
-0.3066 |
|
-1.5729 |
1.5466 |
-0.3066 |
| O6 |
1.0412 |
1.7119 |
-0.2842 |
|
1.8213 |
0.8353 |
-0.2842 |
| O7 |
-1.0412 |
-1.7119 |
-0.2842 |
|
-1.8213 |
-0.8353 |
-0.2842 |
| H8 |
-0.8989 |
-0.0319 |
1.6290 |
|
-0.1361 |
-0.8891 |
1.6290 |
| H9 |
0.8989 |
0.0319 |
1.6290 |
|
0.1361 |
0.8891 |
1.6290 |
| H10 |
-1.2506 |
2.5019 |
-1.0796 |
|
2.3397 |
-1.5327 |
-1.0796 |
| H11 |
-1.9708 |
0.9106 |
-0.6600 |
|
0.6755 |
-2.0633 |
-0.6600 |
| H12 |
-1.8643 |
2.1699 |
0.5620 |
|
1.9387 |
-2.1038 |
0.5620 |
| H13 |
1.2506 |
-2.5019 |
-1.0796 |
|
-2.3397 |
1.5327 |
-1.0796 |
| H14 |
1.9708 |
-0.9106 |
-0.6600 |
|
-0.6755 |
2.0633 |
-0.6600 |
| H15 |
1.8643 |
-2.1699 |
0.5620 |
|
-1.9387 |
2.1038 |
0.5620 |
Atom - Atom Distances (Å)
| |
C1 |
C2 |
C3 |
C4 |
C5 |
O6 |
O7 |
H8 |
H9 |
H10 |
H11 |
H12 |
H13 |
H14 |
H15 |
| C1 |
|
1.5285 |
1.5285 |
2.5697 |
2.5697 |
2.3861 |
2.3861 |
1.0910 |
1.0910 |
3.4923 |
2.7399 |
2.8959 |
3.4923 |
2.7399 |
2.8959 |
| C2 |
1.5285 |
| 2.4608 |
1.5041 |
3.2917 |
1.2112 |
3.1452 |
2.1738 |
2.1374 |
2.1408 |
2.1380 |
2.1372 |
4.1105 |
3.0087 |
3.9047 |
| C3 |
1.5285 |
2.4608 |
| 3.2917 |
1.5041 |
3.1452 |
1.2112 |
2.1374 |
2.1738 |
4.1105 |
3.0087 |
3.9047 |
2.1408 |
2.1380 |
2.1372 |
| C4 |
2.5697 |
1.5041 |
3.2917 |
| 4.4118 |
2.3949 |
3.4679 |
2.6645 |
3.4269 |
1.0890 |
1.0941 |
1.0948 |
5.0387 |
4.2675 |
5.1391 |
| C5 |
2.5697 |
3.2917 |
1.5041 |
4.4118 |
| 3.4679 |
2.3949 |
3.4269 |
2.6645 |
5.0387 |
4.2675 |
5.1391 |
1.0890 |
1.0941 |
1.0948 |
| O6 |
2.3861 |
1.2112 |
3.1452 |
2.3949 |
3.4679 |
| 4.0074 |
3.2350 |
2.5501 |
2.5513 |
3.1394 |
3.0607 |
4.2934 |
2.8077 |
4.0573 |
| O7 |
2.3861 |
3.1452 |
1.2112 |
3.4679 |
2.3949 |
4.0074 |
| 2.5501 |
3.2350 |
4.2934 |
2.8077 |
4.0573 |
2.5513 |
3.1394 |
3.0607 |
| H8 |
1.0910 |
2.1738 |
2.1374 |
2.6645 |
3.4269 |
3.2350 |
2.5501 |
| 1.7989 |
3.7257 |
2.6976 |
2.6304 |
4.2495 |
3.7745 |
3.6531 |
| H9 |
1.0910 |
2.1374 |
2.1738 |
3.4269 |
2.6645 |
2.5501 |
3.2350 |
1.7989 |
| 4.2495 |
3.7745 |
3.6531 |
3.7257 |
2.6976 |
2.6304 |
| H10 |
3.4923 |
2.1408 |
4.1105 |
1.0890 |
5.0387 |
2.5513 |
4.2934 |
3.7257 |
4.2495 |
| 1.7964 |
1.7837 |
5.5941 |
4.7116 |
5.8501 |
| H11 |
2.7399 |
2.1380 |
3.0087 |
1.0941 |
4.2675 |
3.1394 |
2.8077 |
2.6976 |
3.7745 |
1.7964 |
| 1.7579 |
4.7116 |
4.3420 |
5.0686 |
| H12 |
2.8959 |
2.1372 |
3.9047 |
1.0948 |
5.1391 |
3.0607 |
4.0573 |
2.6304 |
3.6531 |
1.7837 |
1.7579 |
| 5.8501 |
5.0686 |
5.7216 |
| H13 |
3.4923 |
4.1105 |
2.1408 |
5.0387 |
1.0890 |
4.2934 |
2.5513 |
4.2495 |
3.7257 |
5.5941 |
4.7116 |
5.8501 |
| 1.7964 |
1.7837 |
| H14 |
2.7399 |
3.0087 |
2.1380 |
4.2675 |
1.0941 |
2.8077 |
3.1394 |
3.7745 |
2.6976 |
4.7116 |
4.3420 |
5.0686 |
1.7964 |
| 1.7579 |
| H15 |
2.8959 |
3.9047 |
2.1372 |
5.1391 |
1.0948 |
4.0573 |
3.0607 |
3.6531 |
2.6304 |
5.8501 |
5.0686 |
5.7216 |
1.7837 |
1.7579 |
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Maximum atom distance is 5.8501Å
between atoms H10 and H15.
Calculated Bond Angles (degrees) (Ignoring Hydrogens)
| atom1 |
atom2 |
atom3 |
angle |
|
atom1 |
atom2 |
atom3 |
angle |
|
C1 |
C2 |
C4 |
115.841 |
|
C1 |
C2 |
O6 |
120.693 |
|
C1 |
C3 |
C5 |
115.841 |
|
C1 |
C3 |
O7 |
120.693 |
|
C2 |
C1 |
C3 |
107.209 |
|
C4 |
C2 |
O6 |
123.409 |
|
C5 |
C3 |
O7 |
123.409 |
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Calculated Bond Angles (degrees) (Involving Hydrogens)
| atom1 |
atom2 |
atom3 |
angle |
|
atom1 |
atom2 |
atom3 |
angle |
|
C2 |
C1 |
H8 |
111.064 |
|
C2 |
C1 |
H9 |
108.198 |
|
C2 |
C4 |
H10 |
110.264 |
|
C2 |
C4 |
H11 |
109.734 |
|
C2 |
C4 |
H12 |
109.635 |
|
C3 |
C1 |
H8 |
108.198 |
|
C3 |
C1 |
H9 |
111.064 |
|
C3 |
C5 |
H13 |
110.264 |
|
C3 |
C5 |
H14 |
109.734 |
|
C3 |
C5 |
H15 |
109.635 |
|
H8 |
C1 |
H9 |
111.052 |
|
H10 |
C4 |
H11 |
110.751 |
|
H10 |
C4 |
H12 |
109.535 |
|
H11 |
C4 |
H12 |
106.858 |
|
H13 |
C5 |
H14 |
110.751 |
|
H13 |
C5 |
H15 |
109.535 |
|
H14 |
C5 |
H15 |
106.858 |
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For information on specific bond angles or dihedrals
see the geometry comparison page in section
Comparisons > Geometry > Bonds, angles.