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

using model chemistry: MP2/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/Def2TZVPP
 hartrees
Energy at 0K-306.825627
Energy at 298.15K-306.832190
HF Energy-305.655861
Nuclear repulsion energy269.288444
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 MP2/Def2TZVPP
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 3233 3076 0.00      
2 A1 3199 3044 3.45      
3 A1 3045 2898 4.88      
4 A1 1719 1636 166.12      
5 A1 1671 1590 25.52      
6 A1 1435 1366 17.89      
7 A1 1418 1349 4.61      
8 A1 1192 1134 5.67      
9 A1 962 916 4.36      
10 A1 899 856 10.71      
11 A1 782 744 2.28      
12 A1 498 474 1.79      
13 A2 1209 1151 0.00      
14 A2 1005 956 0.00      
15 A2 751 715 0.00      
16 A2 358 341 0.00      
17 B1 3074 2925 2.16      
18 B1 1013 963 1.11      
19 B1 950 904 25.91      
20 B1 842 801 31.75      
21 B1 571 543 22.13      
22 B1 302 288 2.49      
23 B1 118 112 0.93      
24 B2 3232 3075 9.41      
25 B2 3199 3043 8.98      
26 B2 1654 1574 3.63      
27 B2 1437 1368 39.48      
28 B2 1386 1318 0.97      
29 B2 1285 1222 22.12      
30 B2 1142 1087 5.83      
31 B2 1009 960 5.29      
32 B2 572 545 0.90      
33 B2 449 427 13.27      

Unscaled Zero Point Vibrational Energy (zpe) 22804.2 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 21698.2 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 MP2/Def2TZVPP
ABC
0.17612 0.08917 0.05983

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

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 -1.823
C3 0.000 1.252 0.330
C4 0.000 -1.252 0.330
C5 0.000 1.251 -1.012
C6 0.000 -1.251 -1.012
O7 0.000 0.000 2.338
H8 0.000 2.170 0.902
H9 0.000 -2.170 0.902
H10 0.000 2.187 -1.558
H11 0.000 -2.187 -1.558
H12 0.869 0.000 -2.489
H13 -0.869 0.000 -2.489

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.94041.47901.47902.46902.46901.22102.18112.18113.45523.45523.70963.7096
C22.94042.49102.49101.49131.49134.16143.48393.48392.20342.20341.09451.0945
C31.47902.49102.50441.34162.84002.36651.08183.47012.10663.92353.20503.2050
C41.47902.49102.50442.84001.34162.36653.47011.08183.92352.10663.20503.2050
C52.46901.49131.34162.84002.50193.57562.12293.92011.08403.48142.12212.1221
C62.46901.49132.84001.34162.50193.57563.92012.12293.48141.08402.12212.1221
O71.22104.16142.36652.36653.57563.57562.60262.60264.46784.46784.90504.9050
H82.18113.48391.08183.47012.12293.92012.60264.34092.45955.00404.11904.1190
H92.18113.48393.47011.08183.92012.12292.60264.34095.00402.45954.11904.1190
H103.45522.20342.10663.92351.08403.48144.46782.45955.00404.37472.53122.5312
H113.45522.20343.92352.10663.48141.08404.46785.00402.45954.37472.53122.5312
H123.70961.09453.20503.20502.12212.12214.90504.11904.11902.53122.53121.7370
H133.70961.09453.20503.20502.12212.12214.90504.11904.11902.53122.53121.7370

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 122.097 C1 C3 H8 115.939
C1 C4 C6 122.097 C1 C4 H9 115.939
C2 C5 C3 123.034 C2 C5 H10 116.772
C2 C6 C4 123.034 C2 C6 H11 116.772
C3 C1 C4 115.700 C3 C1 O7 122.150
C3 C5 H10 120.194 C4 C1 O7 122.150
C4 C6 H11 120.194 C5 C2 C6 114.039
C5 C2 H12 109.346 C5 C2 H13 109.346
C5 C3 H8 121.965 C6 C2 H12 109.346
C6 C2 H13 109.346 C6 C4 H9 121.965
H12 C2 H13 105.028
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability