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

using model chemistry: MP4=FULL/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 MP4=FULL/6-31G*
 hartrees
Energy at 0K-306.585155
Energy at 298.15K-306.591607
HF Energy-305.536406
Nuclear repulsion energy267.427465
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 MP4=FULL/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 3205 3082        
2 A1 3169 3047        
3 A1 3017 2901        
4 A1 1732 1666        
5 A1 1673 1609        
6 A1 1494 1437        
7 A1 1430 1375        
8 A1 1209 1163        
9 A1 970 933        
10 A1 897 863        
11 A1 775 745        
12 A1 499 480        
13 A2 1223 1176        
14 A2 968 931        
15 A2 743 714        
16 A2 345 332        
17 B1 3041 2925        
18 B1 1001 963        
19 B1 954 918        
20 B1 813 782        
21 B1 567 545        
22 B1 272 262        
23 B1 117 113        
24 B2 3204 3081        
25 B2 3168 3046        
26 B2 1666 1602        
27 B2 1443 1388        
28 B2 1411 1357        
29 B2 1298 1248        
30 B2 1161 1116        
31 B2 1010 972        
32 B2 575 553        
33 B2 445 428        

Unscaled Zero Point Vibrational Energy (zpe) 22747.8 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 21874.3 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 MP4=FULL/6-31G*
ABC
0.17388 0.08791 0.05902

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.114
C2 0.000 0.000 -1.834
C3 0.000 1.259 0.334
C4 0.000 -1.259 0.334
C5 0.000 1.258 -1.016
C6 0.000 -1.258 -1.016
O7 0.000 0.000 2.354
H8 0.000 2.183 0.911
H9 0.000 -2.183 0.911
H10 0.000 2.204 -1.563
H11 0.000 -2.204 -1.563
H12 0.873 0.000 -2.510
H13 -0.873 0.000 -2.510

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.94781.48121.48122.47402.47401.24002.19272.19273.46763.46763.72803.7280
C22.94782.50622.50621.50041.50044.18783.50743.50742.22022.22021.10451.1045
C31.48122.50622.51761.34962.85592.38061.09023.49032.11903.94793.23013.2301
C41.48122.50622.51762.85591.34962.38063.49031.09023.94792.11903.23013.2301
C52.47401.50041.34962.85592.51633.59742.13803.94441.09243.50472.13952.1395
C62.47401.50042.85591.34962.51633.59743.94442.13803.50471.09242.13952.1395
O71.24004.18782.38062.38063.59743.59742.61702.61704.49464.49464.94214.9421
H82.19273.50741.09023.49032.13803.94442.61704.36662.47465.03674.15164.1516
H92.19273.50743.49031.09023.94442.13802.61704.36665.03672.47464.15164.1516
H103.46762.22022.11903.94791.09243.50474.49462.47465.03674.40732.55242.5524
H113.46762.22023.94792.11903.50471.09244.49465.03672.47464.40732.55242.5524
H123.72801.10453.23013.23012.13952.13954.94214.15164.15162.55242.55241.7460
H133.72801.10453.23013.23012.13952.13954.94214.15164.15162.55242.55241.7460

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 121.774 C1 C3 H8 116.191
C1 C4 C6 121.774 C1 C4 H9 116.191
C2 C5 C3 123.046 C2 C5 H10 116.927
C2 C6 C4 123.046 C2 C6 H11 116.927
C3 C1 C4 116.394 C3 C1 O7 121.803
C3 C5 H10 120.026 C4 C1 O7 121.803
C4 C6 H11 120.026 C5 C2 C6 113.966
C5 C2 H12 109.498 C5 C2 H13 109.498
C5 C3 H8 122.035 C6 C2 H12 109.498
C6 C2 H13 109.498 C6 C4 H9 122.035
H12 C2 H13 104.449
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability