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

using model chemistry: CCD/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCD/6-31+G**
 hartrees
Energy at 0K-306.565310
Energy at 298.15K-306.571732
HF Energy-305.559428
Nuclear repulsion energy268.272014
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 CCD/6-31+G**
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 3275 3086 0.07      
2 A1 3239 3052 6.79      
3 A1 3082 2904 12.03      
4 A1 1820 1715 257.14      
5 A1 1743 1642 12.28      
6 A1 1504 1417 11.09      
7 A1 1453 1369 1.01      
8 A1 1223 1153 5.18      
9 A1 981 924 3.02      
10 A1 904 852 7.13      
11 A1 787 742 3.06      
12 A1 507 478 1.87      
13 A2 1224 1154 0.00      
14 A2 987 930 0.00      
15 A2 742 699 0.00      
16 A2 342 322 0.00      
17 B1 3111 2931 7.11      
18 B1 1012 953 15.45      
19 B1 959 904 10.75      
20 B1 781 736 58.91      
21 B1 557 524 13.94      
22 B1 227 213 2.10      
23 B1 100 94 1.54      
24 B2 3274 3085 15.36      
25 B2 3239 3052 14.88      
26 B2 1723 1623 1.02      
27 B2 1468 1384 32.25      
28 B2 1430 1347 3.08      
29 B2 1319 1243 27.01      
30 B2 1173 1105 7.09      
31 B2 1019 960 4.74      
32 B2 585 551 0.49      
33 B2 459 433 14.97      

Unscaled Zero Point Vibrational Energy (zpe) 23122.7 cm-1
Scaled (by 0.9423) Zero Point Vibrational Energy (zpe) 21788.5 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 CCD/6-31+G**
ABC
0.17363 0.08883 0.05940

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31+G**

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 -1.828
C3 0.000 1.262 0.333
C4 0.000 -1.262 0.333
C5 0.000 1.258 -1.010
C6 0.000 -1.258 -1.010
O7 0.000 0.000 2.339
H8 0.000 2.180 0.907
H9 0.000 -2.180 0.907
H10 0.000 2.197 -1.553
H11 0.000 -2.197 -1.553
H12 0.870 0.000 -2.496
H13 -0.870 0.000 -2.496

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.94011.48321.48322.46692.46691.22722.18982.18983.45383.45383.71063.7106
C22.94012.50312.50311.50121.50124.16733.49783.49782.21412.21411.09631.0963
C31.48322.50312.52481.34312.85632.37001.08233.49002.10523.94023.21743.2174
C41.48322.50312.52482.85631.34312.37003.49001.08233.94022.10523.21743.2174
C52.46691.50121.34312.85632.51703.57762.12693.93681.08443.49782.13242.1324
C62.46691.50122.85631.34312.51703.57763.93682.12693.49781.08442.13242.1324
O71.22724.16732.37002.37003.57763.57762.60842.60844.46944.46944.91204.9120
H82.18983.49781.08233.49002.12693.93682.60844.36032.46025.02104.13344.1334
H92.18983.49783.49001.08233.93682.12692.60844.36035.02102.46024.13344.1334
H103.45382.21412.10523.94021.08443.49784.46942.46025.02104.39382.54382.5438
H113.45382.21413.94022.10523.49781.08444.46945.02102.46024.39382.54382.5438
H123.71061.09633.21743.21742.13242.13244.91204.13344.13342.54382.54381.7401
H133.71061.09633.21743.21742.13242.13244.91204.13344.13342.54382.54381.7401

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 121.500 C1 C3 H8 116.324
C1 C4 C6 121.500 C1 C4 H9 116.324
C2 C5 C3 123.202 C2 C5 H10 116.896
C2 C6 C4 123.202 C2 C6 H11 116.896
C3 C1 C4 116.668 C3 C1 O7 121.666
C3 C5 H10 119.902 C4 C1 O7 121.666
C4 C6 H11 119.902 C5 C2 C6 113.929
C5 C2 H12 109.372 C5 C2 H13 109.372
C5 C3 H8 122.176 C6 C2 H12 109.372
C6 C2 H13 109.372 C6 C4 H9 122.176
H12 C2 H13 105.046
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability