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All results from a given calculation for C4H6O (Cyclobutanone)

using model chemistry: HF/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 HF/6-311G**
 hartrees
Energy at 0K-229.854389
Energy at 298.15K-229.861398
Nuclear repulsion energy168.743548
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 HF/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' 3268 2969 56.21      
2 A' 3241 2944 4.22      
3 A' 3215 2920 23.94      
4 A' 3197 2904 18.52      
5 A' 2068 1878 411.12      
6 A' 1621 1473 0.52      
7 A' 1569 1426 0.77      
8 A' 1371 1246 1.37      
9 A' 1325 1203 0.32      
10 A' 1206 1096 0.50      
11 A' 1030 936 1.33      
12 A' 916 832 0.84      
13 A' 789 717 2.88      
14 A' 730 663 4.01      
15 A' 447 406 3.75      
16 A' 56 51 4.69      
17 A" 3249 2952 3.50      
18 A" 3194 2902 27.10      
19 A" 1558 1416 20.20      
20 A" 1399 1271 9.60      
21 A" 1334 1212 2.51      
22 A" 1307 1188 1.78      
23 A" 1197 1087 82.57      
24 A" 1029 935 0.21      
25 A" 985 895 0.04      
26 A" 692 629 0.00      
27 A" 501 455 8.42      

Unscaled Zero Point Vibrational Energy (zpe) 21246.0 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 19302.0 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 HF/6-311G**
ABC
0.36469 0.16323 0.12074

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.284 1.830 0.000
C2 -0.067 0.675 0.000
C3 0.101 -0.368 1.103
C4 0.101 -0.368 -1.103
C5 0.101 -1.463 0.000
H6 -0.797 -2.067 0.000
H7 0.962 -2.119 0.000
H8 1.046 -0.257 1.626
H9 1.046 -0.257 -1.626
H10 -0.700 -0.395 1.832
H11 -0.700 -0.395 -1.832

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
O11.17542.48902.48903.31533.93064.14072.96082.96082.91192.9119
C21.17541.52701.52702.14432.83732.97712.17942.17942.21372.2137
C32.48901.52702.20571.55412.21612.24111.08542.88951.08383.0423
C42.48901.52702.20571.55412.21612.24112.88951.08543.04231.0838
C53.31532.14431.55411.55411.08281.08192.23372.23372.26682.2668
H63.93062.83732.21612.21611.08281.75973.05243.05242.48212.4821
H74.14072.97712.24112.24111.08191.75972.47322.47323.01483.0148
H82.96082.17941.08542.88952.23373.05242.47323.25121.76383.8759
H92.96082.17942.88951.08542.23373.05242.47323.25123.87591.7638
H102.91192.21371.08383.04232.26682.48213.01481.76383.87593.6637
H112.91192.21373.04231.08382.26682.48213.01483.87591.76383.6637

picture of Cyclobutanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 133.743 O1 C2 C4 133.743
C2 C3 C5 88.199 C2 C3 H8 111.969
C2 C3 H10 114.915 C2 C4 C5 88.199
C2 C4 H9 111.969 C2 C4 H11 114.915
C3 C2 C4 92.479 C3 C5 C4 90.408
C3 C5 H6 113.151 C3 C5 H7 115.290
C4 C5 H6 113.151 C4 C5 H7 115.290
C5 C3 H8 114.446 C5 C3 H10 117.363
C5 C4 H9 114.446 C5 C4 H11 117.363
H6 C5 H7 108.759 H8 C3 H10 108.804
H9 C4 H11 108.804
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.379      
2 C 0.297      
3 C -0.232      
4 C -0.232      
5 C -0.231      
6 H 0.118      
7 H 0.114      
8 H 0.137      
9 H 0.137      
10 H 0.135      
11 H 0.135      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.593 -3.087 0.000 3.143
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.608 1.284 0.000
y 1.284 -37.166 0.000
z 0.000 0.000 -28.978
Traceless
 xyz
x 4.464 1.284 0.000
y 1.284 -8.373 0.000
z 0.000 0.000 3.909
Polar
3z2-r27.817
x2-y28.558
xy1.284
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.105 -0.271 0.000
y -0.271 6.854 0.000
z 0.000 0.000 6.357


<r2> (average value of r2) Å2
<r2> 105.096
(<r2>)1/2 10.252