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

using model chemistry: MP4/TZVP

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/TZVP
 hartrees
Energy at 0K-306.739837
Energy at 298.15K 
HF Energy-305.633433
Nuclear repulsion energy267.759306
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/TZVP
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 3207 3088        
2 A1 3171 3054        
3 A1 3023 2910        
4 A1 1693 1630        
5 A1 1637 1576        
6 A1 1454 1400        
7 A1 1413 1360        
8 A1 1194 1149        
9 A1 948 913        
10 A1 881 849        
11 A1 760 732        
12 A1 495 476        
13 A2 1175 1131        
14 A2 850 819        
15 A2 689 664        
16 A2 247 238        
17 B1 3048 2935        
18 B1 953 918        
19 B1 882 849        
20 B1 639 615        
21 B1 450 433        
22 B1 94 91        
23 B1 389i 375i        
24 B2 3205 3086        
25 B2 3170 3053        
26 B2 1636 1576        
27 B2 1418 1365        
28 B2 1389 1337        
29 B2 1275 1228        
30 B2 1142 1100        
31 B2 993 957        
32 B2 565 544        
33 B2 444 427        

Unscaled Zero Point Vibrational Energy (zpe) 21876.0 cm-1
Scaled (by 0.9629) Zero Point Vibrational Energy (zpe) 21064.4 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/TZVP
ABC
0.17375 0.08822 0.05914

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.115
C2 0.000 0.000 -1.831
C3 0.000 1.259 0.332
C4 0.000 -1.259 0.332
C5 0.000 1.259 -1.015
C6 0.000 -1.259 -1.015
O7 0.000 0.000 2.350
H8 0.000 2.181 0.905
H9 0.000 -2.181 0.905
H10 0.000 2.200 -1.561
H11 0.000 -2.200 -1.561
H12 0.873 0.000 -2.498
H13 -0.873 0.000 -2.498

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.94541.48291.48292.47432.47431.23532.19142.19143.46393.46393.71703.7170
C22.94542.50242.50241.50051.50054.18063.49883.49882.21682.21681.09931.0993
C31.48292.50242.51871.34682.85632.37891.08563.48812.11343.94333.21833.2183
C41.48292.50242.51872.85631.34682.37893.48811.08563.94332.11343.21833.2183
C52.47431.50051.34682.85632.51903.59302.12993.94031.08753.50252.13282.1328
C62.47431.50052.85631.34682.51903.59303.94032.12993.50251.08752.13282.1328
O71.23534.18062.37892.37893.59303.59302.61652.61654.48714.48714.92624.9262
H82.19143.49881.08563.48812.12993.94032.61654.36272.46565.02764.13554.1355
H92.19143.49883.48811.08563.94032.12992.61654.36275.02762.46564.13554.1355
H103.46392.21682.11343.94331.08753.50254.48712.46565.02764.40062.54622.5462
H113.46392.21683.94332.11343.50251.08754.48715.02762.46564.40062.54622.5462
H123.71701.09933.21833.21832.13282.13284.92624.13554.13552.54622.54621.7468
H133.71701.09933.21833.21832.13282.13284.92624.13554.13552.54622.54621.7468

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 121.876 C1 C3 H8 116.262
C1 C4 C6 121.876 C1 C4 H9 116.262
C2 C5 C3 122.919 C2 C5 H10 116.969
C2 C6 C4 122.919 C2 C6 H11 116.969
C3 C1 C4 116.260 C3 C1 O7 121.870
C3 C5 H10 120.112 C4 C1 O7 121.870
C4 C6 H11 120.112 C5 C2 C6 114.150
C5 C2 H12 109.273 C5 C2 H13 109.273
C5 C3 H8 121.863 C6 C2 H12 109.273
C6 C2 H13 109.273 C6 C4 H9 121.863
H12 C2 H13 105.218
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability