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

using model chemistry: B3LYP/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 B3LYP/3-21G*
 hartrees
Energy at 0K-305.749844
Energy at 298.15K-305.756566
HF Energy-305.749844
Nuclear repulsion energy267.699223
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/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 3217 3095 0.32      
2 A1 3174 3054 5.46      
3 A1 3007 2893 6.04      
4 A1 1728 1663 110.29      
5 A1 1681 1617 57.64      
6 A1 1491 1434 19.87      
7 A1 1445 1390 1.39      
8 A1 1240 1193 6.76      
9 A1 978 941 5.50      
10 A1 870 837 7.99      
11 A1 761 732 1.38      
12 A1 520 500 2.66      
13 A2 1263 1215 0.00      
14 A2 1059 1019 0.00      
15 A2 773 744 0.00      
16 A2 378 364 0.00      
17 B1 3018 2903 5.70      
18 B1 1072 1031 3.39      
19 B1 972 935 28.08      
20 B1 898 864 35.19      
21 B1 600 577 37.48      
22 B1 336 324 2.50      
23 B1 138 132 0.27      
24 B2 3214 3092 17.36      
25 B2 3173 3052 13.55      
26 B2 1672 1609 4.93      
27 B2 1429 1374 13.98      
28 B2 1383 1331 4.68      
29 B2 1288 1239 27.29      
30 B2 1163 1119 24.58      
31 B2 991 953 12.35      
32 B2 590 568 2.10      
33 B2 444 427 11.87      

Unscaled Zero Point Vibrational Energy (zpe) 22982.4 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 22109.1 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/3-21G*
ABC
0.17499 0.08762 0.05902

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.119
C2 0.000 0.000 -1.837
C3 0.000 1.250 0.325
C4 0.000 -1.250 0.325
C5 0.000 1.260 -1.014
C6 0.000 -1.260 -1.014
O7 0.000 0.000 2.363
H8 0.000 2.169 0.899
H9 0.000 -2.169 0.899
H10 0.000 2.199 -1.561
H11 0.000 -2.199 -1.561
H12 0.877 0.000 -2.506
H13 -0.877 0.000 -2.506

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12 H13
C12.95591.48071.48072.47722.47721.24432.18002.18003.46643.46643.72973.7297
C22.95592.49682.49681.50471.50474.20023.49093.49092.21582.21581.10281.1028
C31.48072.49682.49921.33872.84412.39111.08373.46622.11103.93003.21623.2162
C41.48072.49682.49922.84411.33872.39113.46621.08373.93002.11103.21623.2162
C52.47721.50471.33872.84412.51953.60462.11763.92591.08653.50132.14062.1406
C62.47721.50472.84411.33872.51953.60463.92592.11763.50131.08652.14062.1406
O71.24434.20022.39112.39113.60463.60462.61712.61714.49814.49814.94784.9478
H82.18003.49091.08373.46622.11763.92592.61714.33762.45975.01234.13104.1310
H92.18003.49093.46621.08373.92592.11762.61714.33765.01232.45974.13104.1310
H103.46642.21582.11103.93001.08653.50134.49812.45975.01234.39712.54862.5486
H113.46642.21583.93002.11103.50131.08654.49815.01232.45974.39712.54862.5486
H123.72971.10283.21623.21622.14062.14064.94784.13104.13102.54862.54861.7530
H133.72971.10283.21623.21622.14062.14064.94784.13104.13102.54862.54861.7530

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 122.877 C1 C3 H8 115.580
C1 C4 C6 122.877 C1 C4 H9 115.580
C2 C5 C3 122.720 C2 C5 H10 116.619
C2 C6 C4 122.720 C2 C6 H11 116.619
C3 C1 C4 115.115 C3 C1 O7 122.442
C3 C5 H10 120.661 C4 C1 O7 122.442
C4 C6 H11 120.661 C5 C2 C6 113.690
C5 C2 H12 109.385 C5 C2 H13 109.385
C5 C3 H8 121.543 C6 C2 H12 109.385
C6 C2 H13 109.385 C6 C4 H9 121.543
H12 C2 H13 105.269
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.368      
2 C -0.494      
3 C -0.200      
4 C -0.200      
5 C -0.141      
6 C -0.141      
7 O -0.488      
8 H 0.208      
9 H 0.208      
10 H 0.203      
11 H 0.203      
12 H 0.236      
13 H 0.236      


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 -4.245 4.245
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.412 0.000 0.000
y 0.000 -36.024 0.000
z 0.000 0.000 -44.303
Traceless
 xyz
x -2.248 0.000 0.000
y 0.000 7.333 0.000
z 0.000 0.000 -5.085
Polar
3z2-r2-10.169
x2-y2-6.388
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.551 0.000 0.000
y 0.000 8.310 0.000
z 0.000 0.000 12.857


<r2> (average value of r2) Å2
<r2> 189.039
(<r2>)1/2 13.749