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All results from a given calculation for C4H6O (Cyclobutanone)

using model chemistry: PBEPBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/6-31G*
 hartrees
Energy at 0K-230.940315
Energy at 298.15K-230.946880
Nuclear repulsion energy166.281237
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 PBEPBE/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3089 3045 22.92      
2 A' 3052 3008 5.29      
3 A' 3034 2991 23.93      
4 A' 3004 2962 7.38      
5 A' 1834 1808 248.94      
6 A' 1475 1454 0.74      
7 A' 1421 1401 1.93      
8 A' 1208 1191 5.88      
9 A' 1194 1177 0.36      
10 A' 1066 1051 0.60      
11 A' 964 950 2.21      
12 A' 826 814 1.51      
13 A' 725 714 5.51      
14 A' 657 647 1.48      
15 A' 387 382 0.33      
16 A' 43 43 3.71      
17 A" 3057 3014 2.01      
18 A" 3000 2957 12.86      
19 A" 1404 1384 16.39      
20 A" 1239 1221 8.34      
21 A" 1198 1181 0.72      
22 A" 1154 1138 1.99      
23 A" 1056 1041 94.29      
24 A" 927 914 0.87      
25 A" 922 909 0.44      
26 A" 607 599 0.00      
27 A" 443 437 1.77      

Unscaled Zero Point Vibrational Energy (zpe) 19493.1 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 19214.4 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 PBEPBE/6-31G*
ABC
0.35720 0.15792 0.11721

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.280 1.871 0.000
C2 -0.062 0.678 0.000
C3 0.099 -0.381 1.112
C4 0.099 -0.381 -1.112
C5 0.099 -1.476 0.000
H6 -0.814 -2.091 0.000
H7 0.972 -2.145 0.000
H8 1.054 -0.276 1.657
H9 1.054 -0.276 -1.657
H10 -0.716 -0.407 1.856
H11 -0.716 -0.407 -1.856

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
O11.21292.53972.53973.36823.99824.20653.02193.02192.97012.9701
C21.21291.54361.54362.15972.86953.00622.21352.21352.24672.2467
C32.53971.54362.22341.56042.23482.26071.10492.93061.10363.0775
C42.53971.54362.22341.56042.23482.26072.93061.10493.07751.1036
C53.36822.15971.56041.56041.10091.10042.25792.25792.29162.2916
H63.99822.86952.23482.23481.10091.78743.08733.08732.50852.5085
H74.20653.00622.26072.26071.10041.78742.49912.49913.05233.0523
H83.02192.21351.10492.93062.25793.08732.49913.31381.78573.9356
H93.02192.21352.93061.10492.25793.08732.49913.31383.93561.7857
H102.97012.24671.10363.07752.29162.50853.05231.78573.93563.7118
H112.97012.24673.07751.10362.29162.50853.05233.93561.78573.7118

picture of Cyclobutanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 133.904 O1 C2 C4 133.904
C2 C3 C5 88.179 C2 C3 H8 112.333
C2 C3 H10 115.135 C2 C4 C5 88.179
C2 C4 H9 112.333 C2 C4 H11 115.135
C3 C2 C4 92.143 C3 C5 C4 90.869
C3 C5 H6 113.092 C3 C5 H7 115.252
C4 C5 H6 113.092 C4 C5 H7 115.252
C5 C3 H8 114.730 C5 C3 H10 117.661
C5 C4 H9 114.730 C5 C4 H11 117.661
H6 C5 H7 108.579 H8 C3 H10 107.911
H9 C4 H11 107.911
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.387      
2 C 0.393      
3 C -0.380      
4 C -0.380      
5 C -0.326      
6 H 0.169      
7 H 0.164      
8 H 0.188      
9 H 0.188      
10 H 0.186      
11 H 0.186      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.497 -2.624 0.000 2.670
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.159 1.026 0.000
y 1.026 -35.459 0.000
z 0.000 0.000 -28.352
Traceless
 xyz
x 3.747 1.026 0.000
y 1.026 -7.203 0.000
z 0.000 0.000 3.457
Polar
3z2-r26.913
x2-y27.300
xy1.026
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.166 -0.308 0.000
y -0.308 7.047 0.000
z 0.000 0.000 6.587


<r2> (average value of r2) Å2
<r2> 107.065
(<r2>)1/2 10.347