return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B3LYP/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/Def2TZVPP
 hartrees
Energy at 0K-307.567669
Energy at 298.15K-307.574315
HF Energy-307.567669
Nuclear repulsion energy269.489943
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 B3LYP/Def2TZVPP
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 3188 3069 0.25      
2 A1 3153 3036 8.37      
3 A1 2987 2875 9.52      
4 A1 1728 1663 305.90      
5 A1 1692 1629 24.20      
6 A1 1430 1376 17.08      
7 A1 1422 1369 8.48      
8 A1 1196 1152 7.82      
9 A1 969 933 6.64      
10 A1 884 851 9.75      
11 A1 773 744 2.46      
12 A1 509 490 3.28      
13 A2 1207 1161 0.00      
14 A2 1024 985 0.00      
15 A2 756 728 0.00      
16 A2 367 354 0.00      
17 B1 2992 2880 4.66      
18 B1 1040 1001 0.11      
19 B1 951 915 29.11      
20 B1 867 835 30.28      
21 B1 580 558 23.74      
22 B1 323 311 2.67      
23 B1 127 122 1.01      
24 B2 3187 3068 14.76      
25 B2 3153 3035 12.42      
26 B2 1657 1595 2.60      
27 B2 1422 1368 29.30      
28 B2 1381 1329 0.21      
29 B2 1277 1229 30.03      
30 B2 1145 1102 9.61      
31 B2 995 958 6.32      
32 B2 580 558 1.48      
33 B2 457 440 13.58      

Unscaled Zero Point Vibrational Energy (zpe) 22707.7 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 21858.5 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 B3LYP/Def2TZVPP
ABC
0.17553 0.08957 0.05994

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.116
C2 0.000 0.000 -1.820
C3 0.000 1.255 0.328
C4 0.000 -1.255 0.328
C5 0.000 1.254 -1.007
C6 0.000 -1.254 -1.007
O7 0.000 0.000 2.332
H8 0.000 2.172 0.902
H9 0.000 -2.172 0.902
H10 0.000 2.189 -1.556
H11 0.000 -2.189 -1.556
H12 0.867 0.000 -2.492
H13 -0.867 0.000 -2.492

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.93601.48161.48162.46572.46571.21602.18262.18263.45463.45463.71083.7108
C22.93602.48742.48741.49431.49434.15203.48263.48262.20522.20521.09691.0969
C31.48162.48742.50921.33492.84152.36441.08243.47452.10323.92563.20593.2059
C41.48162.48742.50922.84151.33492.36443.47451.08243.92562.10323.20593.2059
C52.46571.49431.33492.84152.50773.56672.11863.92201.08483.48672.12822.1282
C62.46571.49432.84151.33492.50773.56673.92202.11863.48671.08482.12822.1282
O71.21604.15202.36442.36443.56673.56672.60042.60044.46224.46224.90144.9014
H82.18263.48261.08243.47452.11863.92202.60044.34422.45855.00664.12204.1220
H92.18263.48263.47451.08243.92202.11862.60044.34425.00662.45854.12204.1220
H103.45462.20522.10323.92561.08483.48674.46222.45855.00664.37872.53392.5339
H113.45462.20523.92562.10323.48671.08484.46225.00662.45854.37872.53392.5339
H123.71081.09693.20593.20592.12822.12824.90144.12204.12202.53392.53391.7337
H133.71081.09693.20593.20592.12822.12824.90144.12204.12202.53392.53391.7337

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 122.105 C1 C3 H8 115.816
C1 C4 C6 122.105 C1 C4 H9 115.816
C2 C5 C3 122.991 C2 C5 H10 116.626
C2 C6 C4 122.991 C2 C6 H11 116.626
C3 C1 C4 115.725 C3 C1 O7 122.138
C3 C5 H10 120.383 C4 C1 O7 122.138
C4 C6 H11 120.383 C5 C2 C6 114.083
C5 C2 H12 109.473 C5 C2 H13 109.473
C5 C3 H8 122.079 C6 C2 H12 109.473
C6 C2 H13 109.473 C6 C4 H9 122.079
H12 C2 H13 104.419
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.220      
2 C 0.006      
3 C -0.151      
4 C -0.151      
5 C -0.142      
6 C -0.142      
7 O -0.314      
8 H 0.127      
9 H 0.127      
10 H 0.126      
11 H 0.126      
12 H 0.083      
13 H 0.083      


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 -4.723 4.723
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.360 0.000 0.000
y 0.000 -36.745 0.000
z 0.000 0.000 -46.084
Traceless
 xyz
x -0.945 0.000 0.000
y 0.000 7.477 0.000
z 0.000 0.000 -6.532
Polar
3z2-r2-13.064
x2-y2-5.615
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.360 0.000 0.000
y 0.000 10.236 0.000
z 0.000 0.000 14.672


<r2> (average value of r2) Å2
<r2> 187.196
(<r2>)1/2 13.682