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

using model chemistry: MP4/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP4/6-311G**
 hartrees
Energy at 0K-306.716983
Energy at 298.15K-306.723327
HF Energy-305.607345
Nuclear repulsion energy266.933836
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 MP4/6-311G**
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 3193 3096        
2 A1 3155 3060        
3 A1 3013 2922        
4 A1 1705 1653        
5 A1 1649 1599        
6 A1 1453 1409        
7 A1 1400 1357        
8 A1 1179 1144        
9 A1 946 917        
10 A1 882 855        
11 A1 760 737        
12 A1 491 476        
13 A2 1195 1158        
14 A2 958 929        
15 A2 732 709        
16 A2 335 325        
17 B1 3039 2947        
18 B1 973 944        
19 B1 940 912        
20 B1 795 771        
21 B1 547 530        
22 B1 232 225        
23 B1 111 108        
24 B2 3192 3095        
25 B2 3155 3059        
26 B2 1635 1586        
27 B2 1413 1371        
28 B2 1380 1338        
29 B2 1264 1226        
30 B2 1131 1096        
31 B2 992 962        
32 B2 563 546        
33 B2 439 426        

Unscaled Zero Point Vibrational Energy (zpe) 22421.6 cm-1
Scaled (by 0.9697) Zero Point Vibrational Energy (zpe) 21742.2 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 MP4/6-311G**
ABC
0.17270 0.08763 0.05876

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.123
C2 0.000 0.000 -1.838
C3 0.000 1.263 0.334
C4 0.000 -1.263 0.334
C5 0.000 1.263 -1.019
C6 0.000 -1.263 -1.019
O7 0.000 0.000 2.355
H8 0.000 2.188 0.909
H9 0.000 -2.188 0.909
H10 0.000 2.208 -1.565
H11 0.000 -2.208 -1.565
H12 0.876 0.000 -2.508
H13 -0.876 0.000 -2.508

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.96071.48931.48932.48652.48651.23212.19812.19813.47873.47873.73543.7354
C22.96072.51222.51221.50561.50564.19283.51193.51192.22492.22491.10301.1030
C31.48932.51222.52611.35252.86562.38341.08923.49852.12113.95663.23113.2311
C41.48932.51222.52612.86561.35252.38343.49851.08923.95662.12113.23113.2311
C52.48651.50561.35252.86562.52663.60252.13833.95311.09153.51412.14052.1405
C62.48651.50562.86561.35252.52663.60253.95312.13833.51411.09152.14052.1405
O71.23214.19282.38342.38343.60253.60252.62222.62224.49934.49934.94164.9416
H82.19813.51191.08923.49852.13833.95312.62224.37552.47475.04454.15144.1514
H92.19813.51193.49851.08923.95312.13832.62224.37555.04452.47474.15144.1514
H103.47872.22492.12113.95661.09153.51414.49932.47475.04454.41622.55582.5558
H113.47872.22493.95662.12113.51411.09154.49935.04452.47474.41622.55582.5558
H123.73541.10303.23113.23112.14052.14054.94164.15144.15142.55582.55581.7516
H133.73541.10303.23113.23112.14052.14054.94164.15144.15142.55582.55581.7516

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 122.004 C1 C3 H8 116.102
C1 C4 C6 122.004 C1 C4 H9 116.102
C2 C5 C3 122.950 C2 C5 H10 116.997
C2 C6 C4 122.950 C2 C6 H11 116.997
C3 C1 C4 116.010 C3 C1 O7 121.995
C3 C5 H10 120.053 C4 C1 O7 121.995
C4 C6 H11 120.053 C5 C2 C6 114.083
C5 C2 H12 109.313 C5 C2 H13 109.313
C5 C3 H8 121.894 C6 C2 H12 109.313
C6 C2 H13 109.313 C6 C4 H9 121.894
H12 C2 H13 105.122
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability