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

using model chemistry: CCSD=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 CCSD=FULL/cc-pVDZ
 hartrees
Energy at 0K-306.587773
Energy at 298.15K-306.594355
HF Energy-305.563554
Nuclear repulsion energy266.965769
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 CCSD=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 3234 3234 0.33      
2 A1 3196 3196 6.97      
3 A1 3046 3046 15.50      
4 A1 1814 1814 220.84      
5 A1 1729 1729 3.15      
6 A1 1451 1451 8.44      
7 A1 1417 1417 2.85      
8 A1 1189 1189 4.53      
9 A1 961 961 3.37      
10 A1 898 898 6.01      
11 A1 778 778 1.92      
12 A1 499 499 1.64      
13 A2 1215 1215 0.00      
14 A2 1008 1008 0.00      
15 A2 756 756 0.00      
16 A2 356 356 0.00      
17 B1 3078 3078 10.28      
18 B1 1017 1017 1.49      
19 B1 964 964 21.72      
20 B1 850 850 36.03      
21 B1 579 579 17.31      
22 B1 292 292 2.35      
23 B1 121 121 0.88      
24 B2 3232 3232 15.79      
25 B2 3195 3195 13.30      
26 B2 1706 1706 1.68      
27 B2 1444 1444 36.00      
28 B2 1398 1398 5.06      
29 B2 1280 1280 21.80      
30 B2 1143 1143 7.35      
31 B2 1007 1007 5.18      
32 B2 574 574 0.26      
33 B2 451 451 14.12      

Unscaled Zero Point Vibrational Energy (zpe) 22937.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 22937.0 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 CCSD=FULL/cc-pVDZ
ABC
0.17236 0.08784 0.05882

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.125
C2 0.000 0.000 -1.838
C3 0.000 1.265 0.335
C4 0.000 -1.265 0.335
C5 0.000 1.263 -1.016
C6 0.000 -1.263 -1.016
O7 0.000 0.000 2.348
H8 0.000 2.195 0.913
H9 0.000 -2.195 0.913
H10 0.000 2.213 -1.565
H11 0.000 -2.213 -1.565
H12 0.879 0.000 -2.513
H13 -0.879 0.000 -2.513

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.96351.49191.49192.48602.48601.22312.20522.20523.48333.48333.74343.7434
C22.96352.51422.51421.50661.50664.18673.51913.51912.22962.22961.10831.1083
C31.49192.51422.53011.35082.86592.37821.09483.50792.12273.96273.23793.2379
C41.49192.51422.53012.86591.35082.37823.50791.09483.96272.12273.23793.2379
C52.48601.50661.35082.86592.52513.59372.14233.95901.09723.51842.14672.1467
C62.48601.50662.86591.35082.52513.59373.95902.14233.51841.09722.14672.1467
O71.22314.18672.37822.37823.59373.59372.62282.62284.49554.49554.94074.9407
H82.20523.51911.09483.50792.14233.95902.62284.38972.47745.05614.16264.1626
H92.20523.51913.50791.09483.95902.14232.62284.38975.05612.47744.16264.1626
H103.48332.22962.12273.96271.09723.51844.49552.47745.05614.42562.56292.5629
H113.48332.22963.96272.12273.51841.09724.49555.05612.47744.42562.56292.5629
H123.74341.10833.23793.23792.14672.14674.94074.16264.16262.56292.56291.7577
H133.74341.10833.23793.23792.14672.14674.94074.16264.16262.56292.56291.7577

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 121.901 C1 C3 H8 116.126
C1 C4 C6 121.901 C1 C4 H9 116.126
C2 C5 C3 123.174 C2 C5 H10 116.933
C2 C6 C4 123.174 C2 C6 H11 116.933
C3 C1 C4 115.985 C3 C1 O7 122.008
C3 C5 H10 119.893 C4 C1 O7 122.008
C4 C6 H11 119.893 C5 C2 C6 113.865
C5 C2 H12 109.416 C5 C2 H13 109.416
C5 C3 H8 121.973 C6 C2 H12 109.416
C6 C2 H13 109.416 C6 C4 H9 121.973
H12 C2 H13 104.928
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability