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All results from a given calculation for C4H6O (Cyclobutanone)

using model chemistry: B1B95/CEP-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 B1B95/CEP-31G
 hartrees
Energy at 0K-42.032867
Energy at 298.15K-42.039631
Nuclear repulsion energy89.101940
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/CEP-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' 3198 3062 64.92      
2 A' 3161 3027 4.61      
3 A' 3126 2993 27.64      
4 A' 3102 2970 14.61      
5 A' 1790 1714 267.48      
6 A' 1504 1440 3.34      
7 A' 1456 1394 1.47      
8 A' 1266 1212 13.53      
9 A' 1215 1163 0.75      
10 A' 1073 1027 2.36      
11 A' 995 952 2.43      
12 A' 866 829 0.15      
13 A' 750 718 14.97      
14 A' 675 647 5.38      
15 A' 406 389 0.07      
16 A' 62 59 5.67      
17 A" 3172 3037 2.38      
18 A" 3098 2967 18.46      
19 A" 1444 1382 41.01      
20 A" 1301 1246 2.62      
21 A" 1225 1173 1.22      
22 A" 1213 1161 0.10      
23 A" 1137 1088 109.00      
24 A" 971 930 0.53      
25 A" 961 920 0.23      
26 A" 667 639 0.15      
27 A" 456 437 4.74      

Unscaled Zero Point Vibrational Energy (zpe) 20144.0 cm-1
Scaled (by 0.9575) Zero Point Vibrational Energy (zpe) 19287.9 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/CEP-31G
ABC
0.35368 0.15544 0.11555

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.315 1.886 0.000
C2 -0.067 0.672 0.000
C3 0.111 -0.381 1.119
C4 0.111 -0.381 -1.119
C5 0.111 -1.487 0.000
H6 -0.800 -2.101 0.000
H7 0.985 -2.152 0.000
H8 1.067 -0.271 1.655
H9 1.067 -0.271 -1.655
H10 -0.701 -0.413 1.860
H11 -0.701 -0.413 -1.860

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
O11.23912.56402.56403.39934.01574.24143.04983.04982.98202.9820
C21.23911.54701.54702.16582.86753.01292.21692.21692.24452.2445
C32.56401.54702.23811.57292.24452.26921.10142.93621.09983.0879
C42.56401.54702.23811.57292.24452.26922.93621.10143.08791.0998
C53.39932.16581.57291.57291.09851.09772.26502.26502.29622.2962
H64.01572.86752.24452.24451.09851.78523.09363.09362.51352.5135
H74.24143.01292.26922.26921.09771.78522.50632.50633.05363.0536
H83.04982.21691.10142.93622.26503.09362.50633.31001.78553.9371
H93.04982.21692.93621.10142.26503.09362.50633.31003.93711.7855
H102.98202.24451.09983.08792.29622.51353.05361.78553.93713.7200
H112.98202.24453.08791.09982.29622.51353.05363.93711.78553.7200

picture of Cyclobutanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 133.635 O1 C2 C4 133.635
C2 C3 C5 87.922 C2 C3 H8 112.579
C2 C3 H10 114.941 C2 C4 C5 87.922
C2 C4 H9 112.579 C2 C4 H11 114.941
C3 C2 C4 92.668 C3 C5 C4 90.707
C3 C5 H6 113.121 C3 C5 H7 115.193
C4 C5 H6 113.121 C4 C5 H7 115.193
C5 C3 H8 114.611 C5 C3 H10 117.335
C5 C4 H9 114.611 C5 C4 H11 117.335
H6 C5 H7 108.747 H8 C3 H10 108.418
H9 C4 H11 108.418
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.023      
2 C -0.277      
3 C -0.218      
4 C -0.218      
5 C -0.302      
6 H 0.154      
7 H 0.169      
8 H 0.174      
9 H 0.174      
10 H 0.184      
11 H 0.184      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.700 -3.355 0.000 3.427
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.079 1.519 0.000
y 1.519 -37.465 0.000
z 0.000 0.000 -28.260
Traceless
 xyz
x 4.784 1.519 0.000
y 1.519 -9.296 0.000
z 0.000 0.000 4.512
Polar
3z2-r29.025
x2-y29.387
xy1.519
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.602 -0.413 0.000
y -0.413 7.137 0.000
z 0.000 0.000 6.274


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000