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

using model chemistry: HF/6-31G**

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/6-31G**
 hartrees
Energy at 0K-305.552152
Energy at 298.15K-305.559142
HF Energy-305.552152
Nuclear repulsion energy270.479876
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/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 A1 3376 3047 0.21      
2 A1 3336 3011 10.07      
3 A1 3164 2856 21.58      
4 A1 1988 1794 470.65      
5 A1 1872 1689 0.00      
6 A1 1578 1424 5.59      
7 A1 1536 1386 4.21      
8 A1 1290 1164 8.20      
9 A1 1042 940 3.86      
10 A1 935 844 4.89      
11 A1 821 741 2.03      
12 A1 538 485 3.61      
13 A2 1324 1195 0.00      
14 A2 1126 1016 0.00      
15 A2 824 744 0.00      
16 A2 396 358 0.00      
17 B1 3186 2875 18.20      
18 B1 1147 1035 0.96      
19 B1 1050 947 34.06      
20 B1 933 842 57.93      
21 B1 636 574 14.95      
22 B1 342 309 3.21      
23 B1 135 122 2.07      
24 B2 3374 3046 19.11      
25 B2 3335 3011 17.49      
26 B2 1836 1657 1.33      
27 B2 1551 1400 32.87      
28 B2 1512 1365 5.94      
29 B2 1381 1247 41.48      
30 B2 1236 1116 9.63      
31 B2 1058 955 5.35      
32 B2 618 557 0.11      
33 B2 491 443 20.05      

Unscaled Zero Point Vibrational Energy (zpe) 24481.7 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 22097.2 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/6-31G**
ABC
0.17471 0.09079 0.06039

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.110
C2 0.000 0.000 -1.814
C3 0.000 1.259 0.328
C4 0.000 -1.259 0.328
C5 0.000 1.255 -0.995
C6 0.000 -1.255 -0.995
O7 0.000 0.000 2.308
H8 0.000 2.170 0.898
H9 0.000 -2.170 0.898
H10 0.000 2.186 -1.537
H11 0.000 -2.186 -1.537
H12 0.865 0.000 -2.477
H13 -0.865 0.000 -2.477

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.92361.48171.48172.45052.45051.19852.18052.18053.43303.43303.68943.6894
C22.92362.48482.48481.49881.49884.12213.47393.47392.20362.20361.08991.0899
C31.48172.48482.51801.32332.84112.34621.07503.47642.08323.91783.19413.1941
C41.48172.48482.51802.84111.32332.34623.47641.07503.91782.08323.19413.1941
C52.45051.49881.32332.84112.51043.53352.10313.91401.07743.48382.12602.1260
C62.45051.49882.84111.32332.51043.53353.91402.10313.48381.07742.12602.1260
O71.19854.12212.34622.34623.53353.53352.58782.58784.42334.42334.86254.8625
H82.18053.47391.07503.47642.10313.91402.58784.34062.43594.99114.10514.1051
H92.18053.47393.47641.07503.91402.10312.58784.34064.99112.43594.10514.1051
H103.43302.20362.08323.91781.07743.48384.42332.43594.99114.37222.53192.5319
H113.43302.20363.91782.08323.48381.07744.42334.99112.43594.37222.53192.5319
H123.68941.08993.19413.19412.12602.12604.86254.10514.10512.53192.53191.7305
H133.68941.08993.19413.19412.12602.12604.86254.10514.10512.53192.53191.7305

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 121.660 C1 C3 H8 116.137
C1 C4 C6 121.660 C1 C4 H9 116.137
C2 C5 C3 123.290 C2 C5 H10 116.654
C2 C6 C4 123.290 C2 C6 H11 116.654
C3 C1 C4 116.350 C3 C1 O7 121.825
C3 C5 H10 120.056 C4 C1 O7 121.825
C4 C6 H11 120.056 C5 C2 C6 113.750
C5 C2 H12 109.410 C5 C2 H13 109.410
C5 C3 H8 122.203 C6 C2 H12 109.410
C6 C2 H13 109.410 C6 C4 H9 122.203
H12 C2 H13 105.091
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.494      
2 C -0.268      
3 C -0.191      
4 C -0.191      
5 C -0.120      
6 C -0.120      
7 O -0.567      
8 H 0.170      
9 H 0.170      
10 H 0.157      
11 H 0.157      
12 H 0.155      
13 H 0.155      


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 -4.726 4.726
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.153 0.000 0.000
y 0.000 -36.075 0.000
z 0.000 0.000 -46.099
Traceless
 xyz
x -1.067 0.000 0.000
y 0.000 8.052 0.000
z 0.000 0.000 -6.985
Polar
3z2-r2-13.971
x2-y2-6.079
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.276 0.000 0.000
y 0.000 8.077 0.000
z 0.000 0.000 13.241


<r2> (average value of r2) Å2
<r2> 185.820
(<r2>)1/2 13.632