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

using model chemistry: B3PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/3-21G*
 hartrees
Energy at 0K-305.633489
Energy at 298.15K-305.640207
HF Energy-305.633489
Nuclear repulsion energy268.031097
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 B3PW91/3-21G*
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 3226 3095 0.20      
2 A1 3181 3052 4.27      
3 A1 3014 2892 3.94      
4 A1 1739 1668 123.62      
5 A1 1690 1621 49.65      
6 A1 1477 1417 24.41      
7 A1 1441 1383 2.38      
8 A1 1238 1188 6.74      
9 A1 978 938 5.35      
10 A1 882 846 9.71      
11 A1 769 738 0.99      
12 A1 519 498 2.77      
13 A2 1261 1209 0.00      
14 A2 1060 1017 0.00      
15 A2 774 743 0.00      
16 A2 375 360 0.00      
17 B1 3032 2909 3.53      
18 B1 1072 1028 4.18      
19 B1 966 927 35.54      
20 B1 898 862 35.55      
21 B1 598 573 44.98      
22 B1 334 320 2.76      
23 B1 135 130 0.22      
24 B2 3223 3092 13.95      
25 B2 3180 3051 12.16      
26 B2 1680 1611 5.60      
27 B2 1427 1369 16.80      
28 B2 1386 1330 5.56      
29 B2 1291 1238 28.53      
30 B2 1166 1119 20.61      
31 B2 1001 961 13.32      
32 B2 590 566 1.99      
33 B2 444 426 11.92      

Unscaled Zero Point Vibrational Energy (zpe) 23022.5 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 22087.7 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 B3PW91/3-21G*
ABC
0.17578 0.08777 0.05918

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

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 -1.833
C3 0.000 1.247 0.325
C4 0.000 -1.247 0.325
C5 0.000 1.256 -1.014
C6 0.000 -1.256 -1.014
O7 0.000 0.000 2.362
H8 0.000 2.168 0.897
H9 0.000 -2.168 0.897
H10 0.000 2.196 -1.561
H11 0.000 -2.196 -1.561
H12 0.877 0.000 -2.504
H13 -0.877 0.000 -2.504

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.95131.47751.47752.47432.47431.24392.17932.17933.46383.46383.72623.7262
C22.95132.49252.49251.49961.49964.19523.48673.48672.21312.21311.10391.1039
C31.47752.49252.49331.33892.83822.38811.08473.46242.11113.92543.21313.2131
C41.47752.49252.49332.83821.33892.38813.46241.08473.92542.11113.21313.2131
C52.47431.49961.33892.83822.51183.60182.11773.92131.08773.49522.13682.1368
C62.47431.49962.83821.33892.51183.60183.92132.11773.49521.08772.13682.1368
O71.24394.19522.38812.38813.60183.60182.61652.61654.49544.49544.94384.9438
H82.17933.48671.08473.46242.11773.92132.61654.33632.45795.00884.12734.1273
H92.17933.48673.46241.08473.92132.11772.61654.33635.00882.45794.12734.1273
H103.46382.21312.11113.92541.08773.49524.49542.45795.00884.39252.54602.5460
H113.46382.21313.92542.11113.49521.08774.49545.00882.45794.39252.54602.5460
H123.72621.10393.21313.21312.13682.13684.94384.12734.12732.54602.54601.7545
H133.72621.10393.21313.21312.13682.13684.94384.12734.12732.54602.54601.7545

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 122.855 C1 C3 H8 115.701
C1 C4 C6 122.855 C1 C4 H9 115.701
C2 C5 C3 122.729 C2 C5 H10 116.705
C2 C6 C4 122.729 C2 C6 H11 116.705
C3 C1 C4 115.081 C3 C1 O7 122.459
C3 C5 H10 120.566 C4 C1 O7 122.459
C4 C6 H11 120.566 C5 C2 C6 113.751
C5 C2 H12 109.373 C5 C2 H13 109.373
C5 C3 H8 121.444 C6 C2 H12 109.373
C6 C2 H13 109.373 C6 C4 H9 121.444
H12 C2 H13 105.252
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.369      
2 C -0.546      
3 C -0.229      
4 C -0.229      
5 C -0.167      
6 C -0.167      
7 O -0.493      
8 H 0.238      
9 H 0.238      
10 H 0.231      
11 H 0.231      
12 H 0.262      
13 H 0.262      


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 -4.357 4.357
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.533 0.000 0.000
y 0.000 -35.557 0.000
z 0.000 0.000 -43.951
Traceless
 xyz
x -2.778 0.000 0.000
y 0.000 7.684 0.000
z 0.000 0.000 -4.906
Polar
3z2-r2-9.812
x2-y2-6.975
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.567 0.000 0.000
y 0.000 8.298 0.000
z 0.000 0.000 12.864


<r2> (average value of r2) Å2
<r2> 188.486
(<r2>)1/2 13.729