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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
Maximum atom distance is 5.8501Å between atoms H10 and H15.
picture of Acetylacetone
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
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

For information on specific bond angles or dihedrals see the geometry comparison page in section Comparisons > Geometry > Bonds, angles.