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/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-307.462303
Energy at 298.15K-307.468937
HF Energy-307.462303
Nuclear repulsion energy268.051594
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/cc-pVDZ
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 3195 3099 0.56      
2 A1 3157 3062 8.76      
3 A1 2988 2899 11.73      
4 A1 1755 1703 272.59      
5 A1 1705 1653 5.36      
6 A1 1405 1363 2.37      
7 A1 1395 1353 18.55      
8 A1 1177 1142 6.35      
9 A1 958 929 6.74      
10 A1 888 862 9.43      
11 A1 775 752 1.18      
12 A1 505 489 2.90      
13 A2 1192 1156 0.00      
14 A2 1017 986 0.00      
15 A2 754 731 0.00      
16 A2 364 353 0.00      
17 B1 3001 2911 7.76      
18 B1 1031 1000 0.02      
19 B1 944 916 22.51      
20 B1 866 840 24.46      
21 B1 578 561 18.88      
22 B1 320 310 3.42      
23 B1 132 128 0.63      
24 B2 3193 3097 17.44      
25 B2 3156 3062 13.79      
26 B2 1671 1621 2.95      
27 B2 1415 1373 34.48      
28 B2 1370 1329 2.10      
29 B2 1261 1223 23.17      
30 B2 1131 1097 9.59      
31 B2 995 965 6.59      
32 B2 576 559 1.04      
33 B2 453 439 13.68      

Unscaled Zero Point Vibrational Energy (zpe) 22660.7 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 21980.9 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 B3LYP/cc-pVDZ
ABC
0.17404 0.08855 0.05932

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.117
C2 0.000 0.000 -1.824
C3 0.000 1.257 0.332
C4 0.000 -1.257 0.332
C5 0.000 1.258 -1.013
C6 0.000 -1.258 -1.013
O7 0.000 0.000 2.343
H8 0.000 2.183 0.913
H9 0.000 -2.183 0.913
H10 0.000 2.205 -1.564
H11 0.000 -2.205 -1.564
H12 0.872 0.000 -2.510
H13 -0.872 0.000 -2.510

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.94081.48211.48212.47372.47371.22612.19212.19213.47073.47073.72993.7299
C22.94082.49542.49541.49711.49714.16693.50053.50052.22012.22011.10901.1090
C31.48212.49542.51411.34452.85222.37181.09283.48842.11903.94663.22703.2270
C41.48212.49542.51412.85221.34452.37183.48841.09283.94662.11903.22703.2270
C52.47371.49711.34452.85222.51673.58402.13593.94311.09503.50672.14102.1410
C62.47371.49712.85221.34452.51673.58403.94312.13593.50671.09502.14102.1410
O71.22614.16692.37182.37183.58403.58402.60952.60954.48574.48574.93044.9304
H82.19213.50051.09283.48842.13593.94312.60954.36522.47645.03804.15184.1518
H92.19213.50053.48841.09283.94312.13592.60954.36525.03802.47644.15184.1518
H103.47072.22012.11903.94661.09503.50674.48572.47645.03804.40952.55262.5526
H113.47072.22013.94662.11903.50671.09504.48575.03802.47644.40952.55262.5526
H123.72991.10903.22703.22702.14102.14104.93044.15184.15182.55262.55261.7430
H133.72991.10903.22703.22702.14102.14104.93044.15184.15182.55262.55261.7430

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 122.046 C1 C3 H8 115.891
C1 C4 C6 122.046 C1 C4 H9 115.891
C2 C5 C3 122.749 C2 C5 H10 116.999
C2 C6 C4 122.749 C2 C6 H11 116.999
C3 C1 C4 116.021 C3 C1 O7 121.989
C3 C5 H10 120.252 C4 C1 O7 121.989
C4 C6 H11 120.252 C5 C2 C6 114.388
C5 C2 H12 109.577 C5 C2 H13 109.577
C5 C3 H8 122.063 C6 C2 H12 109.577
C6 C2 H13 109.577 C6 C4 H9 122.063
H12 C2 H13 103.596
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.073      
2 C 0.077      
3 C 0.029      
4 C 0.029      
5 C -0.023      
6 C -0.023      
7 O -0.228      
8 H -0.016      
9 H -0.016      
10 H -0.007      
11 H -0.007      
12 H 0.056      
13 H 0.056      


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 -4.321 4.321
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.766 0.000 0.000
y 0.000 -36.705 0.000
z 0.000 0.000 -44.672
Traceless
 xyz
x -1.078 0.000 0.000
y 0.000 6.514 0.000
z 0.000 0.000 -5.436
Polar
3z2-r2-10.872
x2-y2-5.062
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.656 0.000 0.000
y 0.000 9.577 0.000
z 0.000 0.000 13.834


<r2> (average value of r2) Å2
<r2> 188.515
(<r2>)1/2 13.730