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

using model chemistry: HF/STO-3G

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/STO-3G
 hartrees
Energy at 0K-301.700499
Energy at 298.15K-301.707177
HF Energy-301.700499
Nuclear repulsion energy267.460604
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/STO-3G
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 3732 3047 4.00      
2 A1 3699 3021 40.09      
3 A1 3573 2917 0.23      
4 A1 2096 1711 70.49      
5 A1 2033 1660 3.74      
6 A1 1799 1469 0.42      
7 A1 1652 1349 0.97      
8 A1 1382 1128 1.36      
9 A1 1075 878 0.26      
10 A1 1019 832 0.89      
11 A1 855 698 0.85      
12 A1 546 446 0.51      
13 A2 1433 1170 0.00      
14 A2 1220 996 0.00      
15 A2 869 710 0.00      
16 A2 435 355 0.00      
17 B1 3668 2995 0.03      
18 B1 1231 1005 0.23      
19 B1 1149 938 3.39      
20 B1 953 778 26.22      
21 B1 661 540 5.17      
22 B1 337 275 1.14      
23 B1 107 87 0.57      
24 B2 3730 3046 0.31      
25 B2 3697 3019 0.47      
26 B2 2036 1662 0.28      
27 B2 1671 1364 1.39      
28 B2 1628 1329 14.05      
29 B2 1440 1176 41.58      
30 B2 1318 1076 6.46      
31 B2 1156 944 1.89      
32 B2 657 536 0.00      
33 B2 484 395 10.95      

Unscaled Zero Point Vibrational Energy (zpe) 26669.5 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 21775.7 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/STO-3G
ABC
0.17105 0.08836 0.05889

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.127
C2 0.000 0.000 -1.837
C3 0.000 1.273 0.315
C4 0.000 -1.273 0.315
C5 0.000 1.268 -0.999
C6 0.000 -1.268 -0.999
O7 0.000 0.000 2.354
H8 0.000 2.199 0.877
H9 0.000 -2.199 0.877
H10 0.000 2.199 -1.557
H11 0.000 -2.199 -1.557
H12 0.872 0.000 -2.495
H13 -0.872 0.000 -2.495

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.96451.51061.51062.47572.47571.22652.21292.21293.46973.46973.72593.7259
C22.96452.50062.50061.52031.52034.19103.49313.49312.21692.21691.09251.0925
C31.51062.50062.54701.31372.86112.40401.08273.51752.08763.94463.20593.2059
C41.51062.50062.54702.86111.31372.40403.51751.08273.94462.08763.20593.2059
C52.47571.52031.31372.86112.53653.58462.09403.94201.08513.51192.14662.1466
C62.47571.52032.86111.31372.53653.58463.94202.09403.51191.08512.14662.1466
O71.22654.19102.40402.40403.58463.58462.64862.64864.48624.48624.92674.9267
H82.21293.49311.08273.51752.09403.94202.64864.39752.43355.02624.11904.1190
H92.21293.49313.51751.08273.94202.09402.64864.39755.02622.43354.11904.1190
H103.46972.21692.08763.94461.08513.51194.48622.43355.02624.39822.54522.5452
H113.46972.21693.94462.08763.51191.08514.48625.02622.43354.39822.54522.5452
H123.72591.09253.20593.20592.14662.14664.92674.11904.11902.54522.54521.7446
H133.72591.09253.20593.20592.14662.14664.92674.11904.11902.54522.54521.7446

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 122.312 C1 C3 H8 116.172
C1 C4 C6 122.312 C1 C4 H9 116.172
C2 C5 C3 123.692 C2 C5 H10 115.613
C2 C6 C4 123.692 C2 C6 H11 115.613
C3 C1 C4 114.920 C3 C1 O7 122.540
C3 C5 H10 120.694 C4 C1 O7 122.540
C4 C6 H11 120.694 C5 C2 C6 113.070
C5 C2 H12 109.391 C5 C2 H13 109.391
C5 C3 H8 121.515 C6 C2 H12 109.391
C6 C2 H13 109.391 C6 C4 H9 121.515
H12 C2 H13 105.961
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.188      
2 C -0.117      
3 C -0.093      
4 C -0.093      
5 C -0.042      
6 C -0.042      
7 O -0.226      
8 H 0.071      
9 H 0.071      
10 H 0.067      
11 H 0.067      
12 H 0.075      
13 H 0.075      


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 -2.755 2.755
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.047 0.000 0.000
y 0.000 -35.684 0.000
z 0.000 0.000 -41.640
Traceless
 xyz
x 0.615 0.000 0.000
y 0.000 4.159 0.000
z 0.000 0.000 -4.774
Polar
3z2-r2-9.549
x2-y2-2.363
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.731 0.000 0.000
y 0.000 4.807 0.000
z 0.000 0.000 9.262


<r2> (average value of r2) Å2
<r2> 187.841
(<r2>)1/2 13.706