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

using model chemistry: B1B95/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-307.325728
Energy at 298.15K-307.332303
HF Energy-307.325728
Nuclear repulsion energy269.569319
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 B1B95/6-31+G**
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 3237 3097 0.17      
2 A1 3199 3061 7.19      
3 A1 3033 2902 6.42      
4 A1 1779 1702 366.33      
5 A1 1727 1652 6.77      
6 A1 1427 1365 15.97      
7 A1 1417 1356 11.85      
8 A1 1194 1142 7.64      
9 A1 963 921 5.56      
10 A1 900 861 12.29      
11 A1 787 753 1.50      
12 A1 501 479 3.04      
13 A2 1200 1148 0.00      
14 A2 1016 972 0.00      
15 A2 751 718 0.00      
16 A2 359 344 0.00      
17 B1 3055 2922 2.85      
18 B1 1028 984 0.67      
19 B1 941 901 32.70      
20 B1 849 812 35.89      
21 B1 570 545 25.72      
22 B1 308 294 3.48      
23 B1 121 116 0.82      
24 B2 3236 3095 13.50      
25 B2 3199 3060 14.06      
26 B2 1693 1620 2.40      
27 B2 1440 1378 37.58      
28 B2 1389 1329 2.71      
29 B2 1285 1229 25.93      
30 B2 1144 1095 7.05      
31 B2 1008 964 6.04      
32 B2 571 546 0.85      
33 B2 450 431 14.75      

Unscaled Zero Point Vibrational Energy (zpe) 22888.8 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 21895.5 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 B1B95/6-31+G**
ABC
0.17599 0.08957 0.06000

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.107
C2 0.000 0.000 -1.814
C3 0.000 1.251 0.331
C4 0.000 -1.251 0.331
C5 0.000 1.250 -1.008
C6 0.000 -1.250 -1.008
O7 0.000 0.000 2.331
H8 0.000 2.171 0.905
H9 0.000 -2.171 0.905
H10 0.000 2.190 -1.553
H11 0.000 -2.190 -1.553
H12 0.866 0.000 -2.491
H13 -0.866 0.000 -2.491

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.92071.47251.47252.45632.45631.22422.18022.18023.44513.44513.70053.7005
C22.92072.48322.48321.48791.48794.14493.47923.47922.20512.20511.09911.0991
C31.47252.48322.50291.33842.83732.35941.08393.47012.10453.92303.20603.2060
C41.47252.48322.50292.83731.33842.35943.47011.08393.92302.10453.20603.2060
C52.45631.48791.33842.83732.50083.56492.12243.91951.08613.48302.12462.1246
C62.45631.48792.83731.33842.50083.56493.91952.12243.48301.08612.12462.1246
O71.22424.14492.35942.35943.56493.56492.59732.59734.45864.45864.89914.8991
H82.18023.47921.08393.47012.12243.91952.59734.34172.45795.00554.12244.1224
H92.18023.47923.47011.08393.91952.12242.59734.34175.00552.45794.12244.1224
H103.44512.20512.10453.92301.08613.48304.45862.45795.00554.37932.53462.5346
H113.44512.20513.92302.10453.48301.08614.45865.00552.45794.37932.53462.5346
H123.70051.09913.20603.20602.12462.12464.89914.12244.12242.53462.53461.7316
H133.70051.09913.20603.20602.12462.12464.89914.12244.12242.53462.53461.7316

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 121.753 C1 C3 H8 116.220
C1 C4 C6 121.753 C1 C4 H9 116.220
C2 C5 C3 122.867 C2 C5 H10 117.034
C2 C6 C4 122.867 C2 C6 H11 117.034
C3 C1 C4 116.403 C3 C1 O7 121.799
C3 C5 H10 120.099 C4 C1 O7 121.799
C4 C6 H11 120.099 C5 C2 C6 114.359
C5 C2 H12 109.504 C5 C2 H13 109.504
C5 C3 H8 122.027 C6 C2 H12 109.504
C6 C2 H13 109.504 C6 C4 H9 122.027
H12 C2 H13 103.952
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.174      
2 C -0.659      
3 C 0.115      
4 C 0.115      
5 C 0.025      
6 C 0.025      
7 O -0.483      
8 H 0.163      
9 H 0.163      
10 H 0.161      
11 H 0.161      
12 H 0.193      
13 H 0.193      


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 -4.945 4.945
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.418 0.000 0.000
y 0.000 -36.199 0.000
z 0.000 0.000 -45.943
Traceless
 xyz
x -1.347 0.000 0.000
y 0.000 7.981 0.000
z 0.000 0.000 -6.635
Polar
3z2-r2-13.269
x2-y2-6.219
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.294 0.000 0.000
y 0.000 9.864 0.000
z 0.000 0.000 14.896


<r2> (average value of r2) Å2
<r2> 186.927
(<r2>)1/2 13.672