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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

MP2/3-21G*


Point group is C2
Atom Internal Principal
x (Å) y (Å) z (Å)   a (Å) b (Å) c (Å)
C1 0.0000 0.0000 1.0639   0.0000 0.0000 1.0639
C2 0.0000 1.2240 0.1219   1.2136 -0.1592 0.1219
C3 0.0000 -1.2240 0.1219   -1.2136 0.1592 0.1219
C4 -1.3951 1.6270 -0.3429   1.4317 -1.5949 -0.3429
C5 1.3951 -1.6270 -0.3429   -1.4317 1.5949 -0.3429
O6 1.0623 1.7523 -0.2761   1.8756 0.8253 -0.2761
O7 -1.0623 -1.7523 -0.2761   -1.8756 -0.8253 -0.2761
H8 -0.9051 -0.0110 1.6764   -0.1286 -0.8960 1.6764
H9 0.9051 0.0110 1.6764   0.1286 0.8960 1.6764
H10 -1.3198 2.3361 -1.1703   2.1446 -1.6124 -1.1703
H11 -1.9385 0.7263 -0.6512   0.4680 -2.0166 -0.6512
H12 -1.9419 2.0879 0.4883   1.8176 -2.1970 0.4883
H13 1.3198 -2.3361 -1.1703   -2.1446 1.6124 -1.1703
H14 1.9385 -0.7263 -0.6512   -0.4680 2.0166 -0.6512
H15 1.9419 -2.0879 0.4883   -1.8176 2.1970 0.4883
Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C1 1.5445 1.5445 2.5637 2.5637 2.4484 2.4484 1.0929 1.0929 3.4915 2.6883 2.9089 3.4915 2.6883 2.9089
C2 1.5445 2.4480 1.5247 3.2079 1.2514 3.1852 2.1820 2.1696 2.1560 2.1455 2.1568 4.0108 2.8565 3.8567
C3 1.5445 2.4480 3.2079 1.5247 3.1852 1.2514 2.1696 2.1820 4.0108 2.8565 3.8567 2.1560 2.1455 2.1568
C4 2.5637 1.5247 3.2079 4.2865 2.4615 3.3964 2.6459 3.4612 1.0923 1.0962 1.0966 4.8746 4.0922 5.0624
C5 2.5637 3.2079 1.5247 4.2865 3.3964 2.4615 3.4612 2.6459 4.8746 4.0922 5.0624 1.0923 1.0962 1.0966
O6 2.4484 1.2514 3.1852 2.4615 3.3964 4.0983 3.2851 2.6209 2.6105 3.1935 3.1180 4.1930 2.6556 4.0132
O7 2.4484 3.1852 1.2514 3.3964 2.4615 4.0983 2.6209 3.2851 4.1930 2.6556 4.0132 2.6105 3.1935 3.1180
H8 1.0929 2.1820 2.1696 2.6459 3.4612 3.2851 2.6209 1.8103 3.7128 2.6513 2.6252 4.2965 3.7438 3.7190
H9 1.0929 2.1696 2.1820 3.4612 2.6459 2.6209 3.2851 1.8103 4.2965 3.7438 3.7190 3.7128 2.6513 2.6252
H10 3.4915 2.1560 4.0108 1.0923 4.8746 2.6105 4.1930 3.7128 4.2965 1.8011 1.7888 5.3663 4.5016 5.7412
H11 2.6883 2.1455 2.8565 1.0962 4.0922 3.1935 2.6556 2.6513 3.7438 1.8011 1.7756 4.5016 4.1403 4.9271
H12 2.9089 2.1568 3.8567 1.0966 5.0624 3.1180 4.0132 2.6252 3.7190 1.7888 1.7756 5.7412 4.9271 5.7028
H13 3.4915 4.0108 2.1560 4.8746 1.0923 4.1930 2.6105 4.2965 3.7128 5.3663 4.5016 5.7412 1.8011 1.7888
H14 2.6883 2.8565 2.1455 4.0922 1.0962 2.6556 3.1935 3.7438 2.6513 4.5016 4.1403 4.9271 1.8011 1.7756
H15 2.9089 3.8567 2.1568 5.0624 1.0966 4.0132 3.1180 3.7190 2.6252 5.7412 4.9271 5.7028 1.7888 1.7756
Maximum atom distance is 5.7412Å 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 113.291 C1 C2 O6 121.906
C1 C3 C5 113.291 C1 C3 O7 121.906
C2 C1 C3 104.837 C4 C2 O6 124.624
C5 C3 O7 124.624
Calculated Bond Angles (degrees) (Involving Hydrogens)
atom1 atom2 atom3 angle         atom1 atom2 atom3 angle
C2 C1 H8 110.473 C2 C1 H9 109.501
C2 C4 H10 109.841 C2 C4 H11 108.793
C2 C4 H12 109.649 C3 C1 H8 109.501
C3 C1 H9 110.473 C3 C5 H13 109.841
C3 C5 H14 108.793 C3 C5 H15 109.649
H8 C1 H9 111.829 H10 C4 H11 110.767
H10 C4 H12 109.620 H11 C4 H12 108.140
H13 C5 H14 110.767 H13 C5 H15 109.620
H14 C5 H15 108.140

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