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All results from a given calculation for C4H6O (Cyclobutanone)

using model chemistry: BLYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/6-31G*
 hartrees
Energy at 0K-231.130676
Energy at 298.15K-231.137156
HF Energy-231.130676
Nuclear repulsion energy165.430382
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 BLYP/6-31G*
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' 3063 3039 33.68      
2 A' 3023 2999 9.09      
3 A' 3016 2991 28.91      
4 A' 2986 2962 7.66      
5 A' 1804 1789 239.51      
6 A' 1486 1474 0.15      
7 A' 1435 1423 1.65      
8 A' 1212 1202 2.31      
9 A' 1196 1186 0.06      
10 A' 1071 1062 0.47      
11 A' 937 930 1.65      
12 A' 804 798 2.60      
13 A' 729 723 4.27      
14 A' 647 641 0.43      
15 A' 386 383 0.76      
16 A' 14 14 3.69      
17 A" 3029 3005 0.10      
18 A" 2982 2958 21.52      
19 A" 1419 1408 11.20      
20 A" 1241 1231 7.75      
21 A" 1198 1189 0.02      
22 A" 1162 1153 0.80      
23 A" 1033 1025 94.48      
24 A" 926 919 0.01      
25 A" 893 886 1.59      
26 A" 616 611 0.00      
27 A" 434 431 1.68      

Unscaled Zero Point Vibrational Energy (zpe) 19370.7 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 19213.8 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 BLYP/6-31G*
ABC
0.35427 0.15610 0.11552

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.050 1.898 0.000
C2 -0.015 0.688 0.000
C3 0.018 -0.388 1.120
C4 0.018 -0.388 -1.120
C5 0.018 -1.493 0.000
H6 0.908 -2.137 0.000
H7 -0.875 -2.135 0.000
H8 -0.859 -0.368 1.788
H9 -0.859 -0.368 -1.788
H10 0.925 -0.342 1.747
H11 0.925 -0.342 -1.747

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
O11.21062.54682.54683.39154.14684.11652.99732.99733.00273.0027
C21.21061.55371.55372.18092.97162.95082.24112.24112.23492.2349
C32.54681.55372.24041.57322.25942.25911.10243.03751.10343.0076
C42.54681.55372.24041.57322.25942.25913.03751.10243.00761.1034
C53.39152.18091.57321.57321.09881.10012.28742.28742.28052.2805
H64.14682.97162.25942.25941.09881.78393.07423.07422.50512.5051
H74.11652.95082.25912.25911.10011.78392.51402.51403.08373.0837
H82.99732.24111.10243.03752.28743.07422.51403.57581.78443.9596
H92.99732.24113.03751.10242.28743.07422.51403.57583.95961.7844
H103.00272.23491.10343.00762.28052.50513.08371.78443.95963.4942
H113.00272.23493.00761.10342.28052.50513.08373.95961.78443.4942

picture of Cyclobutanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 133.862 O1 C2 C4 133.862
C2 C3 C5 88.448 C2 C3 H8 113.998
C2 C3 H10 113.436 C2 C4 C5 88.448
C2 C4 H9 113.998 C2 C4 H11 113.436
C3 C2 C4 92.277 C3 C5 C4 90.802
C3 C5 H6 114.292 C3 C5 H7 114.187
C4 C5 H6 114.292 C4 C5 H7 114.187
C5 C3 H8 116.390 C5 C3 H10 115.745
C5 C4 H9 116.390 C5 C4 H11 115.745
H6 C5 H7 108.434 H8 C3 H10 107.991
H9 C4 H11 107.991
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.389      
2 C 0.394      
3 C -0.317      
4 C -0.317      
5 C -0.259      
6 H 0.133      
7 H 0.134      
8 H 0.155      
9 H 0.155      
10 H 0.155      
11 H 0.155      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.093 -2.641 0.000 2.643
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.205 0.199 0.000
y 0.199 -35.810 0.000
z 0.000 0.000 -28.588
Traceless
 xyz
x 3.994 0.199 0.000
y 0.199 -7.413 0.000
z 0.000 0.000 3.419
Polar
3z2-r26.838
x2-y27.605
xy0.199
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.125 -0.060 0.000
y -0.060 7.105 0.000
z 0.000 0.000 6.603


<r2> (average value of r2) Å2
<r2> 108.249
(<r2>)1/2 10.404