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

using model chemistry: HF/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-305.572973
Energy at 298.15K-305.579983
HF Energy-305.572973
Nuclear repulsion energy270.869396
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(2df,p)
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 3355 3038 0.34      
2 A1 3315 3002 10.29      
3 A1 3148 2850 21.40      
4 A1 1972 1786 459.65      
5 A1 1862 1686 0.18      
6 A1 1570 1421 5.35      
7 A1 1526 1381 4.09      
8 A1 1281 1160 7.73      
9 A1 1037 939 3.73      
10 A1 929 841 4.86      
11 A1 814 737 2.28      
12 A1 535 484 3.24      
13 A2 1318 1193 0.00      
14 A2 1129 1022 0.00      
15 A2 831 752 0.00      
16 A2 397 359 0.00      
17 B1 3167 2868 16.48      
18 B1 1155 1046 0.24      
19 B1 1056 957 34.25      
20 B1 954 863 38.73      
21 B1 639 579 14.27      
22 B1 349 316 2.70      
23 B1 136 123 1.98      
24 B2 3353 3036 20.15      
25 B2 3314 3001 16.01      
26 B2 1826 1653 1.71      
27 B2 1535 1390 30.14      
28 B2 1504 1361 5.95      
29 B2 1370 1241 39.73      
30 B2 1225 1109 9.88      
31 B2 1050 951 4.69      
32 B2 613 555 0.14      
33 B2 488 442 18.99      

Unscaled Zero Point Vibrational Energy (zpe) 24375.1 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 22071.6 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(2df,p)
ABC
0.17495 0.09113 0.06057

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

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 -1.811
C3 0.000 1.258 0.327
C4 0.000 -1.258 0.327
C5 0.000 1.254 -0.993
C6 0.000 -1.254 -0.993
O7 0.000 0.000 2.302
H8 0.000 2.168 0.899
H9 0.000 -2.168 0.899
H10 0.000 2.184 -1.538
H11 0.000 -2.184 -1.538
H12 0.865 0.000 -2.475
H13 -0.865 0.000 -2.475

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.92101.48191.48192.44852.44851.19222.17862.17863.43203.43203.68773.6877
C22.92102.48092.48091.49761.49764.11323.47083.47082.20092.20091.09021.0902
C31.48192.48092.51641.32002.83822.34181.07493.47402.08183.91473.19103.1910
C41.48192.48092.51642.83821.32002.34183.47401.07493.91472.08183.19103.1910
C52.44851.49761.32002.83822.50873.52572.10113.91081.07743.48112.12552.1255
C62.44851.49762.83821.32002.50873.52573.91082.10113.48111.07742.12552.1255
O71.19224.11322.34182.34183.52573.52572.58282.58284.41744.41744.85484.8548
H82.17863.47081.07493.47402.10113.91082.58284.33682.43674.98794.10294.1029
H92.17863.47083.47401.07493.91082.10112.58284.33684.98792.43674.10294.1029
H103.43202.20092.08183.91471.07743.48114.41742.43674.98794.36772.52902.5290
H113.43202.20093.91472.08183.48111.07744.41744.98792.43674.36772.52902.5290
H123.68771.09023.19103.19102.12552.12554.85484.10294.10292.52902.52901.7295
H133.68771.09023.19103.19102.12552.12554.85484.10294.10292.52902.52901.7295

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 121.721 C1 C3 H8 115.969
C1 C4 C6 121.721 C1 C4 H9 115.969
C2 C5 C3 123.281 C2 C5 H10 116.512
C2 C6 C4 123.281 C2 C6 H11 116.512
C3 C1 C4 116.223 C3 C1 O7 121.889
C3 C5 H10 120.207 C4 C1 O7 121.889
C4 C6 H11 120.207 C5 C2 C6 113.773
C5 C2 H12 109.433 C5 C2 H13 109.433
C5 C3 H8 122.310 C6 C2 H12 109.433
C6 C2 H13 109.433 C6 C4 H9 122.310
H12 C2 H13 104.964
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.474      
2 C -0.296      
3 C -0.215      
4 C -0.215      
5 C -0.122      
6 C -0.122      
7 O -0.466      
8 H 0.164      
9 H 0.164      
10 H 0.157      
11 H 0.157      
12 H 0.159      
13 H 0.159      


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 -4.566 4.566
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.721 0.000 0.000
y 0.000 -36.014 0.000
z 0.000 0.000 -45.545
Traceless
 xyz
x -0.941 0.000 0.000
y 0.000 7.619 0.000
z 0.000 0.000 -6.678
Polar
3z2-r2-13.355
x2-y2-5.707
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.881 0.000 0.000
y 0.000 8.468 0.000
z 0.000 0.000 13.159


<r2> (average value of r2) Å2
<r2> 185.162
(<r2>)1/2 13.607