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

using model chemistry: PBEPBE/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 PBEPBE/6-31G*
 hartrees
Energy at 0K-307.060778
Energy at 298.15K-307.067186
HF Energy-307.060778
Nuclear repulsion energy267.148653
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 PBEPBE/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 3139 3094 0.81      
2 A1 3100 3055 10.37      
3 A1 2930 2888 10.39      
4 A1 1698 1673 214.41      
5 A1 1660 1636 11.56      
6 A1 1403 1383 20.45      
7 A1 1383 1364 1.93      
8 A1 1165 1148 5.18      
9 A1 937 924 5.92      
10 A1 877 865 9.98      
11 A1 762 751 0.76      
12 A1 492 485 2.77      
13 A2 1164 1148 0.00      
14 A2 969 955 0.00      
15 A2 723 713 0.00      
16 A2 345 340 0.00      
17 B1 2943 2901 6.24      
18 B1 986 972 0.00      
19 B1 920 907 17.93      
20 B1 830 818 32.62      
21 B1 555 547 21.92      
22 B1 303 299 3.43      
23 B1 127 126 0.49      
24 B2 3137 3093 20.88      
25 B2 3098 3054 18.68      
26 B2 1624 1601 3.11      
27 B2 1387 1367 30.73      
28 B2 1346 1327 1.28      
29 B2 1243 1225 23.46      
30 B2 1111 1095 9.31      
31 B2 981 967 6.69      
32 B2 560 552 1.27      
33 B2 437 431 13.00      

Unscaled Zero Point Vibrational Energy (zpe) 22167.9 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 21850.9 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 PBEPBE/6-31G*
ABC
0.17368 0.08771 0.05890

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.118
C2 0.000 0.000 -1.829
C3 0.000 1.257 0.333
C4 0.000 -1.257 0.333
C5 0.000 1.260 -1.019
C6 0.000 -1.260 -1.019
O7 0.000 0.000 2.357
H8 0.000 2.186 0.914
H9 0.000 -2.186 0.914
H10 0.000 2.208 -1.573
H11 0.000 -2.208 -1.573
H12 0.872 0.000 -2.519
H13 -0.872 0.000 -2.519

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.94711.48241.48242.48102.48101.23942.19512.19513.48083.48083.74033.7403
C22.94712.50112.50111.49821.49824.18653.50743.50742.22232.22231.11211.1121
C31.48242.50112.51501.35192.85792.38331.09513.49182.12983.95473.23673.2367
C41.48242.50112.51502.85791.35192.38333.49181.09513.95472.12983.23673.2367
C52.48101.49821.35192.85792.52083.60412.14313.95121.09743.51192.14472.1447
C62.48101.49822.85791.35192.52083.60413.95122.14313.51191.09742.14472.1447
O71.23944.18652.38332.38333.60413.60412.61922.61924.50824.50824.95414.9541
H82.19513.50741.09513.49182.14313.95122.61924.37132.48745.04844.16244.1624
H92.19513.50743.49181.09513.95122.14312.61924.37135.04842.48744.16244.1624
H103.48082.22232.12983.95471.09743.51194.50822.48745.04844.41512.55512.5551
H113.48082.22233.95472.12983.51191.09744.50825.04842.48744.41512.55512.5551
H123.74031.11213.23673.23672.14472.14474.95414.16244.16242.55512.55511.7439
H133.74031.11213.23673.23672.14472.14474.95414.16244.16242.55512.55511.7439

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 122.102 C1 C3 H8 115.969
C1 C4 C6 122.102 C1 C4 H9 115.969
C2 C5 C3 122.605 C2 C5 H10 116.938
C2 C6 C4 122.605 C2 C6 H11 116.938
C3 C1 C4 116.043 C3 C1 O7 121.978
C3 C5 H10 120.457 C4 C1 O7 121.978
C4 C6 H11 120.457 C5 C2 C6 114.543
C5 C2 H12 109.607 C5 C2 H13 109.607
C5 C3 H8 121.930 C6 C2 H12 109.607
C6 C2 H13 109.607 C6 C4 H9 121.930
H12 C2 H13 103.272
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.388      
2 C -0.397      
3 C -0.151      
4 C -0.151      
5 C -0.115      
6 C -0.115      
7 O -0.469      
8 H 0.154      
9 H 0.154      
10 H 0.154      
11 H 0.154      
12 H 0.197      
13 H 0.197      


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 -4.403 4.403
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.409 0.000 0.000
y 0.000 -35.802 0.000
z 0.000 0.000 -44.047
Traceless
 xyz
x -1.484 0.000 0.000
y 0.000 6.925 0.000
z 0.000 0.000 -5.441
Polar
3z2-r2-10.882
x2-y2-5.606
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.378 0.000 0.000
y 0.000 9.505 0.000
z 0.000 0.000 13.814


<r2> (average value of r2) Å2
<r2> 189.243
(<r2>)1/2 13.757