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All results from a given calculation for C4H6O (Cyclobutanone)

using model chemistry: LSDA/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at LSDA/6-31G(2df,p)
 hartrees
Energy at 0K-229.991326
Energy at 298.15K-229.997953
Nuclear repulsion energy168.253355
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 LSDA/6-31G(2df,p)
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' 3093 3044 8.47      
2 A' 3061 3012 0.69      
3 A' 3032 2983 15.97      
4 A' 3004 2955 5.77      
5 A' 1894 1863 259.20      
6 A' 1421 1399 2.15      
7 A' 1361 1340 3.28      
8 A' 1182 1163 7.08      
9 A' 1173 1154 4.62      
10 A' 1048 1032 0.46      
11 A' 992 976 2.91      
12 A' 848 834 1.07      
13 A' 716 704 3.81      
14 A' 666 656 4.30      
15 A' 386 380 0.12      
16 A' 72 71 3.49      
17 A" 3066 3017 2.23      
18 A" 2999 2951 2.94      
19 A" 1340 1319 24.07      
20 A" 1220 1201 14.43      
21 A" 1178 1159 1.20      
22 A" 1120 1102 3.87      
23 A" 1067 1050 81.01      
24 A" 945 929 0.79      
25 A" 899 885 0.04      
26 A" 574 564 0.00      
27 A" 454 446 1.80      

Unscaled Zero Point Vibrational Energy (zpe) 19404.8 cm-1
Scaled (by 0.984) Zero Point Vibrational Energy (zpe) 19094.3 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 LSDA/6-31G(2df,p)
ABC
0.36388 0.16221 0.12084

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.435 1.812 0.000
C2 -0.099 0.664 0.000
C3 0.153 -0.364 1.095
C4 0.153 -0.364 -1.095
C5 0.153 -1.448 0.000
H6 -0.770 -2.046 0.000
H7 1.011 -2.135 0.000
H8 1.139 -0.207 1.567
H9 1.139 -0.207 -1.567
H10 -0.600 -0.415 1.897
H11 -0.600 -0.415 -1.897

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
O11.19662.50582.50583.31313.87284.20383.00153.00152.92992.9299
C21.19661.52231.52232.12702.79173.01092.17842.17842.23872.2387
C32.50581.52232.18911.54092.20932.25201.10412.84231.10153.0850
C42.50581.52232.18911.54092.20932.25202.84231.10413.08501.1015
C53.31312.12701.54091.54091.09991.09872.22872.22872.28742.2874
H63.87282.79172.20932.20931.09991.78283.07923.07922.50742.5074
H74.20383.01092.25202.25201.09871.78282.48792.48793.02503.0250
H83.00152.17841.10412.84232.22873.07922.48793.13351.78213.8810
H93.00152.17842.84231.10412.22873.07922.48793.13353.88101.7821
H102.92992.23871.10153.08502.28742.50743.02501.78213.88103.7933
H112.92992.23873.08501.10152.28742.50743.02503.88101.78213.7933

picture of Cyclobutanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 133.974 O1 C2 C4 133.974
C2 C3 C5 87.953 C2 C3 H8 111.077
C2 C3 H10 116.202 C2 C4 C5 87.953
C2 C4 H9 111.077 C2 C4 H11 116.202
C3 C2 C4 91.945 C3 C5 C4 90.528
C3 C5 H6 112.500 C3 C5 H7 116.106
C4 C5 H6 112.500 C4 C5 H7 116.106
C5 C3 H8 113.819 C5 C3 H10 118.977
C5 C4 H9 113.819 C5 C4 H11 118.977
H6 C5 H7 108.368 H8 C3 H10 107.799
H9 C4 H11 107.799
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.237      
2 C 0.365      
3 C -0.403      
4 C -0.403      
5 C -0.285      
6 H 0.150      
7 H 0.143      
8 H 0.169      
9 H 0.169      
10 H 0.165      
11 H 0.165      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.794 -2.598 0.000 2.717
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.216 1.609 0.000
y 1.609 -35.145 0.000
z 0.000 0.000 -28.268
Traceless
 xyz
x 3.490 1.609 0.000
y 1.609 -6.903 0.000
z 0.000 0.000 3.413
Polar
3z2-r26.826
x2-y26.929
xy1.609
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.492 -0.425 0.000
y -0.425 7.105 0.000
z 0.000 0.000 6.850


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