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

using model chemistry: CCD/6-31G

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/6-31G
 hartrees
Energy at 0K-306.097715
Energy at 298.15K-306.104207
HF Energy-305.407758
Nuclear repulsion energy265.159134
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/6-31G
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 3177 3049 0.02      
2 A1 3143 3016 8.29      
3 A1 2988 2867 16.25      
4 A1 1754 1683 74.48      
5 A1 1679 1611 36.08      
6 A1 1530 1468 9.05      
7 A1 1442 1384 0.24      
8 A1 1231 1181 2.93      
9 A1 983 943 2.32      
10 A1 880 845 6.33      
11 A1 771 739 1.53      
12 A1 508 488 1.57      
13 A2 1234 1184 0.00      
14 A2 970 930 0.00      
15 A2 733 704 0.00      
16 A2 353 339 0.00      
17 B1 3007 2885 16.36      
18 B1 1034 992 11.26      
19 B1 952 914 1.01      
20 B1 778 747 65.64      
21 B1 564 542 16.39      
22 B1 279 267 2.35      
23 B1 107 103 1.83      
24 B2 3174 3046 29.72      
25 B2 3142 3014 16.45      
26 B2 1691 1623 2.11      
27 B2 1441 1383 20.93      
28 B2 1405 1348 4.84      
29 B2 1317 1264 25.04      
30 B2 1181 1133 10.16      
31 B2 1004 964 6.62      
32 B2 591 567 0.42      
33 B2 452 434 15.05      

Unscaled Zero Point Vibrational Energy (zpe) 22748.9 cm-1
Scaled (by 0.9595) Zero Point Vibrational Energy (zpe) 21827.6 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/6-31G
ABC
0.17035 0.08657 0.05802

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.117
C2 0.000 0.000 -1.854
C3 0.000 1.272 0.336
C4 0.000 -1.272 0.336
C5 0.000 1.273 -1.020
C6 0.000 -1.273 -1.020
O7 0.000 0.000 2.374
H8 0.000 2.198 0.918
H9 0.000 -2.198 0.918
H10 0.000 2.219 -1.571
H11 0.000 -2.219 -1.571
H12 0.880 0.000 -2.528
H13 -0.880 0.000 -2.528

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.97141.49291.49292.48752.48751.25652.20652.20653.48553.48553.75023.7502
C22.97142.53292.53291.52201.52204.22783.53763.53762.23712.23711.10831.1083
C31.49292.53292.54461.35592.88392.40221.09313.51832.12883.97803.25533.2553
C41.49292.53292.54462.88391.35592.40223.51831.09313.97802.12883.25533.2553
C52.48751.52201.35592.88392.54593.62442.14723.97491.09473.53522.16102.1610
C62.48751.52202.88391.35592.54593.62443.97492.14723.53521.09472.16102.1610
O71.25654.22782.40222.40223.62443.62442.63592.63594.52564.52564.98034.9803
H82.20653.53761.09313.51832.14723.97492.63594.39502.48885.06954.18104.1810
H92.20653.53763.51831.09313.97492.14722.63594.39505.06952.48884.18104.1810
H103.48552.23712.12883.97801.09473.53524.52562.48885.06954.43822.57212.5721
H113.48552.23713.97802.12883.53521.09474.52565.06952.48884.43822.57212.5721
H123.75021.10833.25533.25532.16102.16104.98034.18104.18102.57212.57211.7595
H133.75021.10833.25533.25532.16102.16104.98034.18104.18102.57212.57211.7595

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 121.578 C1 C3 H8 116.279
C1 C4 C6 121.578 C1 C4 H9 116.279
C2 C5 C3 123.211 C2 C5 H10 116.556
C2 C6 C4 123.211 C2 C6 H11 116.556
C3 C1 C4 116.902 C3 C1 O7 121.549
C3 C5 H10 120.232 C4 C1 O7 121.549
C4 C6 H11 120.232 C5 C2 C6 113.519
C5 C2 H12 109.476 C5 C2 H13 109.476
C5 C3 H8 122.143 C6 C2 H12 109.476
C6 C2 H13 109.476 C6 C4 H9 122.143
H12 C2 H13 105.074
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability