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All results from a given calculation for C6H6O (2,4-Cyclohexadienone)

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-306.463647
Energy at 298.15K 
HF Energy-305.534208
Nuclear repulsion energy268.354845
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 MP2/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3254 3069 4.49      
2 A' 3248 3063 17.35      
3 A' 3224 3040 10.78      
4 A' 3218 3035 3.31      
5 A' 3083 2908 1.75      
6 A' 1751 1651 120.04      
7 A' 1709 1611 33.20      
8 A' 1648 1554 4.35      
9 A' 1480 1396 2.37      
10 A' 1474 1390 24.62      
11 A' 1431 1349 10.12      
12 A' 1379 1300 10.82      
13 A' 1291 1217 18.04      
14 A' 1222 1153 2.68      
15 A' 1195 1126 12.95      
16 A' 1029 970 12.56      
17 A' 979 923 3.38      
18 A' 959 904 1.57      
19 A' 764 721 6.93      
20 A' 581 548 0.56      
21 A' 496 467 7.92      
22 A' 454 428 10.20      
23 A" 3123 2945 1.13      
24 A" 1220 1151 3.36      
25 A" 975 919 1.45      
26 A" 947 893 0.33      
27 A" 932 879 0.36      
28 A" 795 749 7.09      
29 A" 713 673 62.50      
30 A" 530 500 6.18      
31 A" 403 380 0.00      
32 A" 252 238 0.02      
33 A" 44i 41i 6.01      

Unscaled Zero Point Vibrational Energy (zpe) 22857.2 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 21554.4 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 MP2/6-31G*
ABC
0.17248 0.08939 0.05951

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.078 0.000
C2 1.274 0.344 0.000
C3 1.303 -1.010 0.000
C4 0.089 -1.817 0.000
C5 -1.126 -1.234 0.000
C6 -1.286 0.254 0.000
O7 -0.046 2.310 0.000
H8 2.182 0.942 0.000
H9 2.262 -1.526 0.000
H10 0.186 -2.899 0.000
H11 -2.031 -1.838 0.000
H12 -1.877 0.575 0.870
H13 -1.877 0.575 -0.870

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C11.47012.46162.89642.57161.52751.23222.18613.44913.98173.55412.12862.1286
C21.47011.35512.46452.87242.56162.36711.08692.11523.42123.96063.27653.2765
C32.46161.35511.45702.43932.88133.58332.14091.08862.19453.43513.65793.6579
C42.89642.46451.45701.34822.48614.12853.46242.19161.08662.12043.21623.2162
C52.57162.87242.43931.34821.49643.70433.95933.40042.12011.08822.14302.1430
C61.52752.56162.88132.48611.49642.40063.53553.96933.47992.22121.09931.0993
O71.23222.36713.58334.12853.70432.40062.61404.47605.21384.59852.66762.6676
H82.18611.08692.14093.46243.95933.53552.61402.46914.32875.04754.16684.1668
H93.44912.11521.08862.19163.40043.96934.47602.46912.48904.30394.72204.7220
H103.98173.42122.19451.08662.12013.47995.21384.32872.48902.45734.13304.1330
H113.55413.96063.43512.12041.08822.22124.59855.04754.30392.45732.57042.5704
H122.12863.27653.65793.21622.14301.09932.66764.16684.72204.13302.57041.7397
H132.12863.27653.65793.21622.14301.09932.66764.16684.72204.13302.57041.7397

picture of 2,4-Cyclohexadienone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 121.168 C1 C2 H8 116.715
C1 C6 C5 116.512 C1 C6 H12 107.135
C1 C6 H13 107.135 C2 C1 C6 117.409
C2 C1 O7 122.070 C2 C3 C4 122.381
C2 C3 H9 119.498 C3 C2 H8 122.117
C3 C4 C5 120.766 C3 C4 H10 118.522
C4 C3 H9 118.121 C4 C5 C6 121.764
C4 C5 H11 120.613 C5 C4 H10 120.712
C5 C6 H12 110.361 C5 C6 H13 110.361
C6 C1 O7 120.521 C6 C5 H11 117.624
H12 C6 H13 104.610
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability