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

using model chemistry: MP4/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-306.615210
Energy at 298.15K-306.621673
HF Energy-305.560348
Nuclear repulsion energy265.910997
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/cc-pVDZ
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 3206 3100        
2 A1 3170 3065        
3 A1 3021 2921        
4 A1 1719 1662        
5 A1 1661 1606        
6 A1 1431 1383        
7 A1 1395 1349        
8 A1 1171 1132        
9 A1 945 914        
10 A1 888 858        
11 A1 764 739        
12 A1 490 474        
13 A2 1193 1154        
14 A2 981 949        
15 A2 740 715        
16 A2 345 333        
17 B1 3054 2953        
18 B1 988 955        
19 B1 947 916        
20 B1 827 800        
21 B1 564 545        
22 B1 279 270        
23 B1 121 117        
24 B2 3205 3099        
25 B2 3169 3064        
26 B2 1649 1595        
27 B2 1420 1373        
28 B2 1374 1328        
29 B2 1258 1216        
30 B2 1125 1088        
31 B2 995 962        
32 B2 562 543        
33 B2 438 423        

Unscaled Zero Point Vibrational Energy (zpe) 22545.7 cm-1
Scaled (by 0.9669) Zero Point Vibrational Energy (zpe) 21799.5 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/cc-pVDZ
ABC
0.17200 0.08682 0.05832

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.129
C2 0.000 0.000 -1.846
C3 0.000 1.265 0.336
C4 0.000 -1.265 0.336
C5 0.000 1.265 -1.024
C6 0.000 -1.265 -1.024
O7 0.000 0.000 2.365
H8 0.000 2.199 0.913
H9 0.000 -2.199 0.913
H10 0.000 2.218 -1.572
H11 0.000 -2.218 -1.572
H12 0.880 0.000 -2.524
H13 -0.880 0.000 -2.524

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.97411.49281.49282.49632.49631.23692.20942.20943.49503.49503.75713.7571
C22.97412.52172.52171.50811.50814.21103.52803.52802.23492.23491.11131.1113
C31.49282.52172.53001.35972.87182.39151.09803.51172.13303.97163.24873.2487
C41.49282.52172.53002.87181.35972.39153.51171.09803.97162.13303.24873.2487
C52.49631.50811.35972.87182.52913.61742.15073.96831.10013.52562.15052.1505
C62.49631.50812.87181.35972.52913.61743.96832.15073.52561.10012.15052.1505
O71.23694.21102.39152.39153.61743.61742.63502.63504.51954.51954.96804.9680
H82.20943.52801.09803.51172.15073.96832.63504.39782.48585.06844.17444.1744
H92.20943.52803.51171.09803.96832.15072.63504.39785.06842.48584.17444.1744
H103.49502.23492.13303.97161.10013.52564.51952.48585.06844.43632.56922.5692
H113.49502.23493.97162.13303.52561.10014.51955.06842.48584.43632.56922.5692
H123.75711.11133.24873.24872.15052.15054.96804.17444.17442.56922.56921.7605
H133.75711.11133.24873.24872.15052.15054.96804.17444.17442.56922.56921.7605

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 122.053 C1 C3 H8 116.197
C1 C4 C6 122.053 C1 C4 H9 116.197
C2 C5 C3 123.038 C2 C5 H10 117.074
C2 C6 C4 123.038 C2 C6 H11 117.074
C3 C1 C4 115.856 C3 C1 O7 122.072
C3 C5 H10 119.889 C4 C1 O7 122.072
C4 C6 H11 119.889 C5 C2 C6 113.963
C5 C2 H12 109.429 C5 C2 H13 109.429
C5 C3 H8 121.750 C6 C2 H12 109.429
C6 C2 H13 109.429 C6 C4 H9 121.750
H12 C2 H13 104.755
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability