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

using model chemistry: HF/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/CEP-121G*
 hartrees
Energy at 0K-52.105007
Energy at 298.15K-52.111901
HF Energy-52.105007
Nuclear repulsion energy138.015868
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 HF/CEP-121G*
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 3374 3048 0.40      
2 A1 3335 3013 16.77      
3 A1 3181 2874 28.87      
4 A1 1935 1748 535.38      
5 A1 1829 1652 2.01      
6 A1 1589 1436 6.60      
7 A1 1522 1375 2.27      
8 A1 1276 1153 10.60      
9 A1 1029 930 3.77      
10 A1 924 835 4.07      
11 A1 807 729 2.65      
12 A1 527 477 3.69      
13 A2 1320 1192 0.00      
14 A2 1101 994 0.00      
15 A2 811 733 0.00      
16 A2 387 350 0.00      
17 B1 3204 2894 24.35      
18 B1 1120 1012 6.08      
19 B1 1040 939 34.56      
20 B1 915 826 64.66      
21 B1 627 567 19.86      
22 B1 318 287 2.61      
23 B1 130 117 1.75      
24 B2 3372 3046 27.37      
25 B2 3335 3013 20.79      
26 B2 1793 1620 0.38      
27 B2 1541 1392 23.63      
28 B2 1505 1360 14.98      
29 B2 1368 1236 41.91      
30 B2 1222 1104 11.00      
31 B2 1047 946 6.37      
32 B2 608 549 0.19      
33 B2 483 436 18.92      

Unscaled Zero Point Vibrational Energy (zpe) 24286.1 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 21940.1 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 HF/CEP-121G*
ABC
0.17254 0.08976 0.05968

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

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 -1.826
C3 0.000 1.269 0.330
C4 0.000 -1.269 0.330
C5 0.000 1.263 -1.001
C6 0.000 -1.263 -1.001
O7 0.000 0.000 2.321
H8 0.000 2.181 0.900
H9 0.000 -2.181 0.900
H10 0.000 2.195 -1.543
H11 0.000 -2.195 -1.543
H12 0.867 0.000 -2.486
H13 -0.867 0.000 -2.486

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.94231.49281.49282.46542.46541.20472.19212.19213.44893.44893.70563.7056
C22.94232.50092.50091.50811.50814.14703.49153.49152.21352.21351.09021.0902
C31.49282.50092.53711.33062.85952.36141.07673.49692.08973.93793.20773.2077
C41.49282.50092.53712.85951.33062.36143.49691.07673.93792.08973.20773.2077
C52.46541.50811.33062.85952.52513.55412.11183.93401.07913.50032.13352.1335
C62.46541.50812.85951.33062.52513.55413.93402.11183.50031.07912.13352.1335
O71.20474.14702.36142.36143.55413.55412.60342.60344.44464.44464.88494.8849
H82.19213.49151.07673.49692.11183.93402.60344.36292.44375.01294.12064.1206
H92.19213.49153.49691.07673.93402.11182.60344.36295.01292.44374.12064.1206
H103.44892.21352.08973.93791.07913.50034.44462.44375.01294.39092.54192.5419
H113.44892.21353.93792.08973.50031.07914.44465.01292.44374.39092.54192.5419
H123.70561.09023.20773.20772.13352.13354.88494.12064.12062.54192.54191.7349
H133.70561.09023.20773.20772.13352.13354.88494.12064.12062.54192.54191.7349

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 121.556 C1 C3 H8 116.168
C1 C4 C6 121.556 C1 C4 H9 116.168
C2 C5 C3 123.413 C2 C5 H10 116.676
C2 C6 C4 123.413 C2 C6 H11 116.676
C3 C1 C4 116.370 C3 C1 O7 121.815
C3 C5 H10 119.911 C4 C1 O7 121.815
C4 C6 H11 119.911 C5 C2 C6 113.691
C5 C2 H12 109.344 C5 C2 H13 109.344
C5 C3 H8 122.276 C6 C2 H12 109.344
C6 C2 H13 109.344 C6 C4 H9 122.276
H12 C2 H13 105.446
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.404      
2 C -0.358      
3 C -0.336      
4 C -0.336      
5 C -0.153      
6 C -0.153      
7 O -0.392      
8 H 0.247      
9 H 0.247      
10 H 0.230      
11 H 0.230      
12 H 0.185      
13 H 0.185      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -4.894 4.894
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.857 0.000 0.000
y 0.000 -36.297 0.000
z 0.000 0.000 -46.351
Traceless
 xyz
x -1.533 0.000 0.000
y 0.000 8.307 0.000
z 0.000 0.000 -6.774
Polar
3z2-r2-13.548
x2-y2-6.560
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.388 0.000 0.000
y 0.000 8.580 0.000
z 0.000 0.000 13.999


<r2> (average value of r2) Å2
<r2> 150.698
(<r2>)1/2 12.276