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All results from a given calculation for C4H6O (Cyclobutanone)

using model chemistry: B3LYP/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/6-311+G(3df,2p)
 hartrees
Energy at 0K-231.312779
Energy at 298.15K-231.319460
Nuclear repulsion energy167.580360
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 B3LYP/6-311+G(3df,2p)
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' 3124 3021 24.65      
2 A' 3091 2989 3.60      
3 A' 3074 2973 23.12      
4 A' 3050 2949 8.30      
5 A' 1862 1801 339.00      
6 A' 1500 1451 1.05      
7 A' 1446 1398 1.09      
8 A' 1238 1197 4.11      
9 A' 1222 1182 0.28      
10 A' 1096 1060 0.09      
11 A' 965 933 2.38      
12 A' 837 810 4.13      
13 A' 739 714 3.11      
14 A' 673 651 0.88      
15 A' 406 393 1.52      
16 A' 36 35 4.15      
17 A" 3097 2995 1.16      
18 A" 3046 2946 14.52      
19 A" 1431 1383 21.47      
20 A" 1272 1230 5.80      
21 A" 1226 1185 0.24      
22 A" 1187 1148 1.17      
23 A" 1080 1044 79.00      
24 A" 947 916 0.07      
25 A" 915 885 0.29      
26 A" 626 605 0.03      
27 A" 460 445 3.61      

Unscaled Zero Point Vibrational Energy (zpe) 19822.9 cm-1
Scaled (by 0.967) Zero Point Vibrational Energy (zpe) 19168.7 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 B3LYP/6-311+G(3df,2p)
ABC
0.36194 0.16059 0.11882

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.193 1.862 0.000
C2 -0.043 0.676 0.000
C3 0.068 -0.378 1.108
C4 0.068 -0.378 -1.108
C5 0.068 -1.474 0.000
H6 -0.828 -2.090 0.000
H7 0.939 -2.125 0.000
H8 0.997 -0.293 1.675
H9 0.997 -0.293 -1.675
H10 -0.764 -0.383 1.812
H11 -0.764 -0.383 -1.812

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
O11.19512.51292.51293.34624.00294.14432.97702.97702.94162.9416
C21.19511.53371.53372.15312.87572.96822.19652.19652.21972.2197
C32.51291.53372.21601.55822.22732.24411.09122.93481.09023.0366
C42.51291.53372.21601.55822.22732.24412.93481.09123.03661.0902
C53.34622.15311.55821.55821.08751.08712.24982.24982.27302.2730
H64.00292.87572.22732.22731.08751.76713.06013.06012.49032.4903
H74.14432.96822.24412.24411.08711.76712.48272.48273.03603.0360
H82.97702.19651.09122.93482.24983.06012.48273.34931.76843.9074
H92.97702.19652.93481.09122.24983.06012.48273.34933.90741.7684
H102.94162.21971.09023.03662.27302.49033.03601.76843.90743.6246
H112.94162.21973.03661.09022.27302.49033.03603.90741.76843.6246

picture of Cyclobutanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 133.733 O1 C2 C4 133.733
C2 C3 C5 88.269 C2 C3 H8 112.515
C2 C3 H10 114.494 C2 C4 C5 88.269
C2 C4 H9 112.515 C2 C4 H11 114.494
C3 C2 C4 92.511 C3 C5 C4 90.645
C3 C5 H6 113.475 C3 C5 H7 114.898
C4 C5 H6 113.475 C4 C5 H7 114.898
C5 C3 H8 115.108 C5 C3 H10 117.142
C5 C4 H9 115.108 C5 C4 H11 117.142
H6 C5 H7 108.708 H8 C3 H10 108.325
H9 C4 H11 108.325
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.689      
2 C 0.392      
3 C -0.139      
4 C -0.139      
5 C -0.387      
6 H 0.155      
7 H 0.156      
8 H 0.165      
9 H 0.165      
10 H 0.160      
11 H 0.160      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.383 -3.052 0.000 3.076
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.934 -0.243 0.000
y -0.243 8.420 0.000
z 0.000 0.000 7.839


<r2> (average value of r2) Å2
<r2> 106.430
(<r2>)1/2 10.317