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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-231.139204
Energy at 298.15K-231.145656
Nuclear repulsion energy165.476661
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 A1 3015 2991 28.09      
2 A1 2987 2964 7.33      
3 A1 1804 1790 239.82      
4 A1 1471 1460 0.11      
5 A1 1418 1407 1.59      
6 A1 1203 1194 2.26      
7 A1 934 927 1.68      
8 A1 801 795 2.78      
9 A1 646 641 0.35      
10 A2 3032 3009 0.00      
11 A2 1192 1183 0.00      
12 A2 920 913 0.00      
13 A2 605 601 0.00      
14 B1 3065 3042 31.37      
15 B1 3027 3003 8.23      
16 B1 1189 1180 0.04      
17 B1 1062 1054 0.41      
18 B1 724 718 4.36      
19 B1 384 381 0.75      
20 B1 3 3 3.68      
21 B2 2982 2959 20.03      
22 B2 1402 1392 10.64      
23 B2 1234 1224 8.71      
24 B2 1154 1145 1.10      
25 B2 1030 1022 94.24      
26 B2 889 882 1.63      
27 B2 435 431 1.61      

Unscaled Zero Point Vibrational Energy (zpe) 19303.5 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 19154.9 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 BLYP/6-31G**
ABC
0.35451 0.15616 0.11555

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.902
C2 0.000 0.000 0.687
C3 0.000 1.121 -0.390
C4 0.000 -1.121 -0.390
C5 0.000 0.000 -1.493
H6 0.892 0.000 -2.134
H7 -0.892 0.000 -2.134
H8 -0.891 1.769 -0.356
H9 -0.891 -1.769 -0.356
H10 0.891 1.769 -0.356
H11 0.891 -1.769 -0.356

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
O11.21502.55142.55143.39444.13344.13343.00323.00323.00323.0032
C21.21501.55431.55432.17942.95872.95872.23812.23812.23812.2381
C32.55141.55432.24111.57182.25662.25661.10263.02371.10263.0237
C42.55141.55432.24111.57182.25662.25663.02371.10263.02371.1026
C53.39442.17941.57181.57181.09891.09892.28362.28362.28362.2836
H64.13342.95872.25662.25661.09891.78443.07773.07772.50822.5082
H74.13342.95872.25662.25661.09891.78442.50822.50823.07773.0777
H83.00322.23811.10263.02372.28363.07772.50823.53721.78273.9611
H93.00322.23813.02371.10262.28363.07772.50823.53723.96111.7827
H103.00322.23811.10263.02372.28362.50823.07771.78273.96113.5372
H113.00322.23813.02371.10262.28362.50823.07773.96111.78273.5372

picture of Cyclobutanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 133.870 O1 C2 C4 133.870
C2 C3 C5 88.398 C2 C3 H8 113.700
C2 C3 H10 113.700 C2 C4 C5 88.398
C2 C4 H9 113.700 C2 C4 H11 113.700
C3 C2 C4 92.260 C3 C5 C4 90.944
C3 C5 H6 114.166 C3 C5 H7 114.166
C4 C5 H6 114.166 C4 C5 H7 114.166
C5 C3 H8 116.173 C5 C3 H10 116.173
C5 C4 H9 116.173 C5 C4 H11 116.173
H6 C5 H7 108.565 H8 C3 H10 107.882
H9 C4 H11 107.882
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 0.365      
3 C -0.222      
4 C -0.222      
5 C -0.186      
6 H 0.095      
7 H 0.095      
8 H 0.116      
9 H 0.116      
10 H 0.116      
11 H 0.116      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.652 2.652
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.255 0.000 0.000
y 0.000 -28.535 0.000
z 0.000 0.000 -35.775
Traceless
 xyz
x 3.900 0.000 0.000
y 0.000 3.480 0.000
z 0.000 0.000 -7.380
Polar
3z2-r2-14.760
x2-y20.280
xy0.000
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 108.198
(<r2>)1/2 10.402