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

using model chemistry: MP2/aug-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 MP2/aug-cc-pVDZ
 hartrees
Energy at 0K-306.577750
Energy at 298.15K-306.584255
HF Energy-305.575862
Nuclear repulsion energy266.782788
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/aug-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 3226 3094 0.00      
2 A1 3191 3061 4.88      
3 A1 3029 2905 7.01      
4 A1 1698 1628 149.97      
5 A1 1646 1579 61.66      
6 A1 1419 1361 18.49      
7 A1 1395 1338 1.84      
8 A1 1177 1129 5.31      
9 A1 950 911 3.64      
10 A1 895 858 10.99      
11 A1 778 747 2.15      
12 A1 492 472 1.78      
13 A2 1193 1144 0.00      
14 A2 974 934 0.00      
15 A2 736 705 0.00      
16 A2 350 336 0.00      
17 B1 3063 2937 3.04      
18 B1 984 943 1.17      
19 B1 932 894 28.01      
20 B1 826 792 29.45      
21 B1 560 537 22.60      
22 B1 292 280 2.30      
23 B1 116 111 1.07      
24 B2 3225 3093 12.38      
25 B2 3191 3060 11.00      
26 B2 1643 1576 4.03      
27 B2 1428 1369 41.05      
28 B2 1372 1316 1.57      
29 B2 1273 1221 18.90      
30 B2 1128 1081 4.23      
31 B2 1001 960 4.92      
32 B2 568 544 0.88      
33 B2 444 426 13.10      

Unscaled Zero Point Vibrational Energy (zpe) 22598.0 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 21671.5 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 MP2/aug-cc-pVDZ
ABC
0.17309 0.08752 0.05876

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.116
C2 0.000 0.000 -1.836
C3 0.000 1.261 0.337
C4 0.000 -1.261 0.337
C5 0.000 1.260 -1.022
C6 0.000 -1.260 -1.022
O7 0.000 0.000 2.358
H8 0.000 2.192 0.912
H9 0.000 -2.192 0.912
H10 0.000 2.212 -1.566
H11 0.000 -2.212 -1.566
H12 0.876 0.000 -2.513
H13 -0.876 0.000 -2.513

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.95201.48231.48232.48182.48181.24202.20182.20183.47673.47673.73363.7336
C22.95202.51262.51261.50041.50044.19403.51523.51522.22802.22801.10761.1076
C31.48232.51262.52241.35912.86452.38211.09413.50102.12783.96043.23783.2378
C41.48232.51262.52242.86451.35912.38213.50101.09413.96042.12783.23783.2378
C52.48181.50041.35912.86452.52073.60732.14663.95731.09623.51452.14022.1402
C62.48181.50042.86451.35912.52073.60733.95732.14663.51451.09622.14022.1402
O71.24204.19402.38212.38213.60733.60732.62632.62634.50494.50494.94944.9494
H82.20183.51521.09413.50102.14663.95732.62634.38462.47855.05344.15994.1599
H92.20183.51523.50101.09413.95732.14662.62634.38465.05342.47854.15994.1599
H103.47672.22802.12783.96041.09623.51454.50492.47855.05344.42332.56042.5604
H113.47672.22803.96042.12783.51451.09624.50495.05342.47854.42332.56042.5604
H123.73361.10763.23783.23782.14022.14024.94944.15994.15992.56042.56041.7529
H133.73361.10763.23783.23782.14022.14024.94944.15994.15992.56042.56041.7529

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 121.661 C1 C3 H8 116.621
C1 C4 C6 121.661 C1 C4 H9 116.621
C2 C5 C3 122.894 C2 C5 H10 117.350
C2 C6 C4 122.894 C2 C6 H11 117.350
C3 C1 C4 116.605 C3 C1 O7 121.697
C3 C5 H10 119.756 C4 C1 O7 121.697
C4 C6 H11 119.756 C5 C2 C6 114.285
C5 C2 H12 109.374 C5 C2 H13 109.374
C5 C3 H8 121.719 C6 C2 H12 109.374
C6 C2 H13 109.374 C6 C4 H9 121.719
H12 C2 H13 104.614
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability