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

using model chemistry: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-306.532198
Energy at 298.15K-306.538483
HF Energy-305.557245
Nuclear repulsion energy268.177126
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 MP2/6-31+G**
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 3274 3080 0.00      
2 A1 3240 3048 5.23      
3 A1 3083 2900 6.09      
4 A1 1730 1627 142.97      
5 A1 1673 1574 62.42      
6 A1 1479 1391 18.31      
7 A1 1438 1352 1.08      
8 A1 1212 1140 6.34      
9 A1 972 914 3.91      
10 A1 906 852 10.08      
11 A1 788 741 2.54      
12 A1 503 473 1.81      
13 A2 1203 1131 0.00      
14 A2 968 910 0.00      
15 A2 734 690 0.00      
16 A2 331 312 0.00      
17 B1 3117 2932 3.26      
18 B1 988 930 14.23      
19 B1 947 891 12.34      
20 B1 752 708 58.50      
21 B1 536 505 13.13      
22 B1 193 181 2.07      
23 B1 93 88 1.43      
24 B2 3274 3079 12.76      
25 B2 3240 3048 12.82      
26 B2 1671 1572 3.06      
27 B2 1457 1370 38.47      
28 B2 1412 1328 1.43      
29 B2 1308 1230 24.14      
30 B2 1162 1093 7.06      
31 B2 1017 957 5.60      
32 B2 580 546 1.16      
33 B2 450 423 13.77      

Unscaled Zero Point Vibrational Energy (zpe) 22864.1 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 21505.9 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 MP2/6-31+G**
ABC
0.17483 0.08841 0.05934

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.107
C2 0.000 0.000 -1.827
C3 0.000 1.256 0.334
C4 0.000 -1.256 0.334
C5 0.000 1.255 -1.016
C6 0.000 -1.255 -1.016
O7 0.000 0.000 2.349
H8 0.000 2.176 0.905
H9 0.000 -2.176 0.905
H10 0.000 2.196 -1.556
H11 0.000 -2.196 -1.556
H12 0.869 0.000 -2.497
H13 -0.869 0.000 -2.497

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.93411.47451.47452.46552.46551.24262.18542.18543.45103.45103.70703.7070
C22.93412.49972.49971.49451.49454.17663.49313.49312.21232.21231.09691.0969
C31.47452.49972.51161.34962.85042.37451.08303.47912.11063.93493.21673.2167
C41.47452.49972.51162.85041.34962.37453.47911.08303.93492.11063.21673.2167
C52.46551.49451.34962.85042.50973.59122.13023.93191.08483.49252.12702.1270
C62.46551.49452.85041.34962.50973.59123.93192.13023.49251.08482.12702.1270
O71.24264.17662.37452.37453.59123.59122.61172.61174.48004.48004.92364.9236
H82.18543.49311.08303.47912.13023.93192.61174.35222.46095.01674.13094.1309
H92.18543.49313.47911.08303.93192.13022.61174.35225.01672.46094.13094.1309
H103.45102.21232.11063.93491.08483.49254.48002.46095.01674.39122.54192.5419
H113.45102.21233.93492.11063.49251.08484.48005.01672.46094.39122.54192.5419
H123.70701.09693.21673.21672.12702.12704.92364.13094.13092.54192.54191.7374
H133.70701.09693.21673.21672.12702.12704.92364.13094.13092.54192.54191.7374

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 121.561 C1 C3 H8 116.578
C1 C4 C6 121.561 C1 C4 H9 116.578
C2 C5 C3 122.940 C2 C5 H10 117.237
C2 C6 C4 122.940 C2 C6 H11 117.237
C3 C1 C4 116.794 C3 C1 O7 121.603
C3 C5 H10 119.822 C4 C1 O7 121.603
C4 C6 H11 119.822 C5 C2 C6 114.202
C5 C2 H12 109.367 C5 C2 H13 109.367
C5 C3 H8 121.861 C6 C2 H12 109.367
C6 C2 H13 109.367 C6 C4 H9 121.861
H12 C2 H13 104.742
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability