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

using model chemistry: MP2/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-306.818651
Energy at 298.15K-306.825250
HF Energy-305.645293
Nuclear repulsion energy269.276635
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/cc-pVTZ
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 3234 3070 0.00      
2 A1 3197 3035 3.66      
3 A1 3044 2890 5.39      
4 A1 1726 1639 159.16      
5 A1 1675 1590 16.69      
6 A1 1438 1366 17.37      
7 A1 1416 1345 4.40      
8 A1 1188 1128 5.41      
9 A1 963 915 4.56      
10 A1 899 854 10.19      
11 A1 782 742 2.23      
12 A1 498 473 1.72      
13 A2 1211 1150 0.00      
14 A2 1008 957 0.00      
15 A2 751 714 0.00      
16 A2 357 339 0.00      
17 B1 3072 2917 2.96      
18 B1 1019 968 0.68      
19 B1 951 903 25.13      
20 B1 849 806 32.80      
21 B1 573 544 22.30      
22 B1 308 293 2.38      
23 B1 120 114 0.89      
24 B2 3233 3070 9.68      
25 B2 3196 3035 9.73      
26 B2 1657 1573 3.98      
27 B2 1438 1365 40.63      
28 B2 1386 1316 0.77      
29 B2 1281 1217 21.58      
30 B2 1141 1083 5.62      
31 B2 1009 958 5.45      
32 B2 573 544 0.83      
33 B2 448 425 13.38      

Unscaled Zero Point Vibrational Energy (zpe) 22820.3 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 21667.9 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/cc-pVTZ
ABC
0.17614 0.08914 0.05982

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.109
C2 0.000 0.000 -1.819
C3 0.000 1.250 0.332
C4 0.000 -1.250 0.332
C5 0.000 1.251 -1.011
C6 0.000 -1.251 -1.011
O7 0.000 0.000 2.337
H8 0.000 2.170 0.899
H9 0.000 -2.170 0.899
H10 0.000 2.191 -1.550
H11 0.000 -2.191 -1.550
H12 0.866 0.000 -2.491
H13 -0.866 0.000 -2.491

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.92791.47191.47192.46132.46131.22882.18032.18033.44483.44483.70213.7021
C22.92792.48762.48761.48881.48884.15663.47863.47862.20702.20701.09581.0958
C31.47192.48762.50001.34282.83832.36351.08143.46712.10353.92143.20593.2059
C41.47192.48762.50002.83831.34282.36353.46711.08143.92142.10353.20593.2059
C52.46131.48881.34282.83832.50103.57462.12053.91821.08343.48292.12192.1219
C62.46131.48882.83831.34282.50103.57463.91822.12053.48291.08342.12192.1219
O71.22884.15662.36352.36353.57463.57462.60352.60354.46214.46214.90524.9052
H82.18033.47861.08143.46712.12053.91822.60354.34062.44945.00164.11744.1174
H92.18033.47863.46711.08143.91822.12052.60354.34065.00162.44944.11744.1174
H103.44482.20702.10353.92141.08343.48294.46212.44945.00164.38102.53642.5364
H113.44482.20703.92142.10353.48291.08344.46215.00162.44944.38102.53642.5364
H123.70211.09583.20593.20592.12192.12194.90524.11744.11742.53642.53641.7318
H133.70211.09583.20593.20592.12192.12194.90524.11744.11742.53642.53641.7318

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 121.890 C1 C3 H8 116.456
C1 C4 C6 121.890 C1 C4 H9 116.456
C2 C5 C3 122.844 C2 C5 H10 117.319
C2 C6 C4 122.844 C2 C6 H11 117.319
C3 C1 C4 116.263 C3 C1 O7 121.868
C3 C5 H10 119.837 C4 C1 O7 121.868
C4 C6 H11 119.837 C5 C2 C6 114.268
C5 C2 H12 109.425 C5 C2 H13 109.425
C5 C3 H8 121.654 C6 C2 H12 109.425
C6 C2 H13 109.425 C6 C4 H9 121.654
H12 C2 H13 104.410
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability