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All results from a given calculation for C6H6O (2,5-Cyclohexadienone)

using model chemistry: MP2=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2=FULL/cc-pVDZ
 hartrees
Energy at 0K-306.540478
Energy at 298.15K-306.547020
HF Energy-305.562450
Nuclear repulsion energy267.238876
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP2=FULL/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3246 3085 0.10      
2 A1 3210 3051 4.64      
3 A1 3057 2905 8.39      
4 A1 1753 1666 137.83      
5 A1 1688 1604 6.37      
6 A1 1429 1358 12.54      
7 A1 1407 1337 5.48      
8 A1 1181 1123 4.38      
9 A1 955 907 4.10      
10 A1 904 859 9.22      
11 A1 782 743 1.47      
12 A1 497 472 1.41      
13 A2 1201 1141 0.00      
14 A2 1001 952 0.00      
15 A2 751 714 0.00      
16 A2 352 335 0.00      
17 B1 3096 2942 5.43      
18 B1 1006 956 0.39      
19 B1 952 905 22.95      
20 B1 842 800 31.61      
21 B1 570 542 20.11      
22 B1 286 272 2.89      
23 B1 121 115 0.60      
24 B2 3245 3084 13.09      
25 B2 3209 3050 11.24      
26 B2 1672 1589 3.94      
27 B2 1440 1368 42.85      
28 B2 1384 1316 2.45      
29 B2 1273 1210 18.55      
30 B2 1135 1078 7.14      
31 B2 1010 960 6.12      
32 B2 571 542 0.62      
33 B2 445 423 13.49      

Unscaled Zero Point Vibrational Energy (zpe) 22834.0 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 21701.4 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/cc-pVDZ
ABC
0.17385 0.08771 0.05893

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.121
C2 0.000 0.000 -1.834
C3 0.000 1.257 0.335
C4 0.000 -1.257 0.335
C5 0.000 1.258 -1.020
C6 0.000 -1.258 -1.020
O7 0.000 0.000 2.354
H8 0.000 2.189 0.909
H9 0.000 -2.189 0.909
H10 0.000 2.210 -1.564
H11 0.000 -2.210 -1.564
H12 0.876 0.000 -2.512
H13 -0.876 0.000 -2.512

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.95541.48301.48302.48332.48331.23292.19882.19883.47783.47783.73773.7377
C22.95542.50722.50721.49861.49864.18833.50963.50962.22592.22591.10771.1077
C31.48302.50722.51471.35482.85702.37871.09423.49352.12473.95313.23353.2335
C41.48302.50722.51472.85701.35482.37873.49351.09423.95312.12473.23353.2335
C52.48331.49861.35482.85702.51613.60092.14203.94991.09633.51012.13952.1395
C62.48331.49862.85701.35482.51613.60093.94992.14203.51011.09632.13952.1395
O71.23294.18832.37872.37873.60093.60092.62242.62244.49864.49864.94474.9447
H82.19883.50961.09423.49352.14203.94992.62244.37722.47405.04624.15524.1552
H92.19883.50963.49351.09423.94992.14202.62244.37725.04622.47404.15524.1552
H103.47782.22592.12473.95311.09633.51014.49862.47405.04624.41912.55892.5589
H113.47782.22593.95312.12473.51011.09634.49865.04622.47404.41912.55892.5589
H123.73771.10773.23353.23352.13952.13954.94474.15524.15522.55892.55891.7517
H133.73771.10773.23353.23352.13952.13954.94474.15524.15522.55892.55891.7517

picture of 2,5-Cyclohexadienone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C5 122.049 C1 C3 H8 116.310
C1 C4 C6 122.049 C1 C4 H9 116.310
C2 C5 C3 122.885 C2 C5 H10 117.302
C2 C6 C4 122.885 C2 C6 H11 117.302
C3 C1 C4 115.961 C3 C1 O7 122.020
C3 C5 H10 119.813 C4 C1 O7 122.020
C4 C6 H11 119.813 C5 C2 C6 114.171
C5 C2 H12 109.432 C5 C2 H13 109.432
C5 C3 H8 121.641 C6 C2 H12 109.432
C6 C2 H13 109.432 C6 C4 H9 121.641
H12 C2 H13 104.496
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability