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All results from a given calculation for C4H6O (Cyclobutanone)

using model chemistry: HF/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 HF/6-31G
 hartrees
Energy at 0K-229.691990
Energy at 298.15K-229.699092
Nuclear repulsion energy167.916812
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/6-31G
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 3254 2938 22.82      
2 A1 3234 2920 15.19      
3 A1 1983 1791 300.11      
4 A1 1654 1494 1.38      
5 A1 1608 1452 0.07      
6 A1 1407 1270 3.27      
7 A1 1030 930 0.87      
8 A1 927 837 0.09      
9 A1 736 664 6.18      
10 A2 3287 2968 0.00      
11 A2 1348 1217 0.00      
12 A2 1078 973 0.00      
13 A2 763 689 0.00      
14 B1 3310 2989 38.23      
15 B1 3280 2961 2.11      
16 B1 1350 1219 0.07      
17 B1 1248 1127 1.24      
18 B1 824 744 5.51      
19 B1 454 410 3.19      
20 B1 77 69 6.62      
21 B2 3231 2917 17.04      
22 B2 1599 1444 26.72      
23 B2 1438 1299 2.33      
24 B2 1360 1228 0.00      
25 B2 1220 1101 107.86      
26 B2 992 896 0.47      
27 B2 496 447 10.57      

Unscaled Zero Point Vibrational Energy (zpe) 21593.3 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 19496.6 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/6-31G
ABC
0.36511 0.16097 0.11907

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.873
C2 0.000 0.000 0.668
C3 0.000 1.106 -0.379
C4 0.000 -1.106 -0.379
C5 0.000 0.000 -1.476
H6 0.877 0.000 -2.106
H7 -0.877 0.000 -2.106
H8 -0.878 1.738 -0.346
H9 -0.878 -1.738 -0.346
H10 0.878 1.738 -0.346
H11 0.878 -1.738 -0.346

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
O11.20532.50872.50873.34954.07514.07512.95252.95252.95252.9525
C21.20531.52251.52252.14422.90972.90972.19542.19542.19542.1954
C32.50871.52252.21121.55792.23082.23081.08262.97611.08262.9761
C42.50871.52252.21121.55792.23082.23082.97611.08262.97611.0826
C53.34952.14421.55791.55791.08011.08012.25132.25132.25132.2513
H64.07512.90972.23082.23081.08011.75463.03313.03312.47342.4734
H74.07512.90972.23082.23081.08011.75462.47342.47343.03313.0331
H82.95252.19541.08262.97612.25133.03312.47343.47551.75673.8942
H92.95252.19542.97611.08262.25133.03312.47343.47553.89421.7567
H102.95252.19541.08262.97612.25132.47343.03311.75673.89423.4755
H112.95252.19542.97611.08262.25132.47343.03313.89421.75673.4755

picture of Cyclobutanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 133.432 O1 C2 C4 133.432
C2 C3 C5 88.223 C2 C3 H8 113.789
C2 C3 H10 113.789 C2 C4 C5 88.223
C2 C4 H9 113.789 C2 C4 H11 113.789
C3 C2 C4 93.135 C3 C5 C4 90.419
C3 C5 H6 114.265 C3 C5 H7 114.265
C4 C5 H6 114.265 C4 C5 H7 114.265
C5 C3 H8 115.819 C5 C3 H10 115.819
C5 C4 H9 115.819 C5 C4 H11 115.819
H6 C5 H7 108.632 H8 C3 H10 108.442
H9 C4 H11 108.442
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.512 0.023    
2 C 0.444 0.023    
3 C -0.388 -0.005    
4 C -0.388 -0.646    
5 C -0.352 0.731    
6 H 0.180 0.071    
7 H 0.180 0.071    
8 H 0.209 0.071    
9 H 0.209 0.071    
10 H 0.209 -0.206    
11 H 0.209 -0.206    


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 -3.603 3.603
CHELPG -0.001 -3.627 0.000 3.627
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.676 0.000 0.000
y 0.000 -28.734 0.000
z 0.000 0.000 -38.829
Traceless
 xyz
x 5.105 0.000 0.000
y 0.000 5.019 0.000
z 0.000 0.000 -10.124
Polar
3z2-r2-20.249
x2-y20.057
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.725 0.000 0.000
y 0.000 6.702 0.000
z 0.000 0.000 5.798


<r2> (average value of r2) Å2
<r2> 106.307
(<r2>)1/2 10.311