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

using model chemistry: CID/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CID/6-311G*
 hartrees
Energy at 0K-306.408729
Energy at 298.15K-306.415504
HF Energy-305.602903
Nuclear repulsion energy270.203406
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 CID/6-311G*
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 3321 3086 0.25      
2 A1 3284 3052 8.56      
3 A1 3135 2913 13.18      
4 A1 1909 1773 363.48      
5 A1 1810 1681 0.39      
6 A1 1533 1425 13.06      
7 A1 1487 1381 4.15      
8 A1 1253 1164 8.10      
9 A1 1007 936 3.40      
10 A1 926 860 6.53      
11 A1 806 749 2.24      
12 A1 523 486 2.71      
13 A2 1287 1196 0.00      
14 A2 1055 980 0.00      
15 A2 790 734 0.00      
16 A2 375 348 0.00      
17 B1 3158 2934 11.11      
18 B1 1074 998 5.65      
19 B1 1005 934 26.95      
20 B1 890 827 55.37      
21 B1 603 560 22.98      
22 B1 300 278 2.39      
23 B1 122 113 1.25      
24 B2 3319 3084 17.80      
25 B2 3284 3051 14.29      
26 B2 1779 1653 2.24      
27 B2 1506 1399 35.19      
28 B2 1468 1364 4.47      
29 B2 1344 1248 30.60      
30 B2 1202 1117 10.09      
31 B2 1043 969 7.15      
32 B2 601 558 0.29      
33 B2 474 440 17.56      

Unscaled Zero Point Vibrational Energy (zpe) 23834.6 cm-1
Scaled (by 0.9291) Zero Point Vibrational Energy (zpe) 22144.7 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 CID/6-311G*
ABC
0.17523 0.09035 0.06026

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.112
C2 0.000 0.000 -1.815
C3 0.000 1.256 0.329
C4 0.000 -1.256 0.329
C5 0.000 1.253 -1.000
C6 0.000 -1.253 -1.000
O7 0.000 0.000 2.315
H8 0.000 2.171 0.900
H9 0.000 -2.171 0.900
H10 0.000 2.188 -1.542
H11 0.000 -2.188 -1.542
H12 0.865 0.000 -2.481
H13 -0.865 0.000 -2.481

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.92661.48011.48012.45522.45521.20302.18132.18133.43923.43923.69573.6957
C22.92662.48472.48471.49461.49464.12963.47653.47652.20532.20531.09211.0921
C31.48012.48472.51231.32872.83912.34971.07873.47452.08983.91953.19743.1974
C41.48012.48472.51232.83911.32872.34973.47451.07873.91952.08983.19743.1974
C52.45521.49461.32872.83912.50573.54342.11053.91591.08093.48352.12432.1243
C62.45521.49462.83911.32872.50573.54343.91592.11053.48351.08092.12432.1243
O71.20304.12962.34972.34973.54343.54342.59112.59114.43384.43384.87344.8734
H82.18133.47651.07873.47452.11053.91592.59114.34212.44204.99674.11074.1107
H92.18133.47653.47451.07873.91592.11052.59114.34214.99672.44204.11074.1107
H103.43922.20532.08983.91951.08093.48354.43382.44204.99674.37662.53382.5338
H113.43922.20533.91952.08983.48351.08094.43384.99672.44204.37662.53382.5338
H123.69571.09213.19743.19742.12432.12434.87344.11074.11072.53382.53381.7305
H133.69571.09213.19743.19742.12432.12434.87344.11074.11072.53382.53381.7305

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 121.787 C1 C3 H8 116.079
C1 C4 C6 121.787 C1 C4 H9 116.079
C2 C5 C3 123.189 C2 C5 H10 116.881
C2 C6 C4 123.189 C2 C6 H11 116.881
C3 C1 C4 116.140 C3 C1 O7 121.930
C3 C5 H10 119.930 C4 C1 O7 121.930
C4 C6 H11 119.930 C5 C2 C6 113.907
C5 C2 H12 109.434 C5 C2 H13 109.434
C5 C3 H8 122.133 C6 C2 H12 109.434
C6 C2 H13 109.434 C6 C4 H9 122.133
H12 C2 H13 104.801
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability