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All results from a given calculation for C4H6O (Cyclobutanone)

using model chemistry: mPW1PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/6-311G*
 hartrees
Energy at 0K-231.223014
Energy at 298.15K-231.229791
Nuclear repulsion energy168.018347
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 mPW1PW91/6-311G*
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' 3164 3019 33.72      
2 A' 3132 2989 6.04      
3 A' 3107 2965 25.97      
4 A' 3083 2942 10.14      
5 A' 1914 1826 321.71      
6 A' 1517 1448 2.00      
7 A' 1462 1395 1.74      
8 A' 1254 1197 8.41      
9 A' 1237 1181 0.44      
10 A' 1110 1059 0.48      
11 A' 995 950 2.57      
12 A' 861 822 1.18      
13 A' 746 712 4.78      
14 A' 685 653 2.68      
15 A' 407 389 0.75      
16 A' 65 62 4.01      
17 A" 3137 2994 3.42      
18 A" 3078 2938 18.88      
19 A" 1446 1380 24.52      
20 A" 1285 1227 6.26      
21 A" 1242 1185 1.21      
22 A" 1199 1145 3.10      
23 A" 1102 1052 92.66      
24 A" 965 921 0.30      
25 A" 951 908 0.10      
26 A" 635 606 0.00      
27 A" 466 445 3.40      

Unscaled Zero Point Vibrational Energy (zpe) 20122.2 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 19204.6 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 mPW1PW91/6-311G*
ABC
0.36328 0.16146 0.11982

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.125 1.863 0.000
C2 0.000 0.677 0.000
C3 0.075 -0.382 1.102
C4 0.075 -0.382 -1.102
C5 -0.045 -1.466 0.000
H6 -1.012 -1.968 0.000
H7 0.738 -2.222 0.000
H8 1.038 -0.368 1.618
H9 1.038 -0.368 -1.618
H10 -0.715 -0.329 1.854
H11 -0.715 -0.329 -1.854

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
O11.19262.50882.50883.32943.93234.17532.99102.99102.93102.9310
C21.19261.53001.53002.14282.83182.99162.18802.18802.22722.2272
C32.50881.53002.20371.54992.21582.24521.09342.88601.09173.0600
C42.50881.53002.20371.54992.21582.24522.88601.09343.06001.0917
C53.32942.14281.54991.54991.08981.08912.23562.23562.27562.2756
H63.93232.83182.21582.21581.08981.76883.06333.06332.49242.4924
H74.17532.99162.24522.24521.08911.76882.47982.47983.02223.0222
H82.99102.18801.09342.88602.23563.06332.47983.23691.76923.8901
H92.99102.18802.88601.09342.23563.06332.47983.23693.89011.7692
H102.93102.22721.09173.06002.27562.49243.02221.76923.89013.7081
H112.93102.22723.06001.09172.27562.49243.02223.89011.76923.7081

picture of Cyclobutanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 133.899 O1 C2 C4 133.899
C2 C3 C5 88.170 C2 C3 H8 111.957
C2 C3 H10 115.297 C2 C4 C5 88.170
C2 C4 H9 111.957 C2 C4 H11 115.297
C3 C2 C4 92.137 C3 C5 C4 90.619
C3 C5 H6 112.994 C3 C5 H7 115.484
C4 C5 H6 112.994 C4 C5 H7 115.484
C5 C3 H8 114.403 C5 C3 H10 117.909
C5 C4 H9 114.403 C5 C4 H11 117.909
H6 C5 H7 108.539 H8 C3 H10 108.125
H9 C4 H11 108.125
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.291      
2 C 0.327      
3 C -0.529      
4 C -0.529      
5 C -0.464      
6 H 0.239      
7 H 0.235      
8 H 0.255      
9 H 0.255      
10 H 0.252      
11 H 0.252      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.312 -2.803 0.000 2.820
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.180 0.429 0.000
y 0.429 -36.315 0.000
z 0.000 0.000 -28.776
Traceless
 xyz
x 4.365 0.429 0.000
y 0.429 -7.837 0.000
z 0.000 0.000 3.472
Polar
3z2-r26.944
x2-y28.134
xy0.429
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 105.503
(<r2>)1/2 10.271