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All results from a given calculation for C4H6O (Cyclobutanone)

using model chemistry: B3LYP/STO-3G

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/STO-3G
 hartrees
Energy at 0K-228.298914
Energy at 298.15K-228.305544
Nuclear repulsion energy163.646116
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/STO-3G
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' 3483 3108 1.02      
2 A' 3452 3081 0.11      
3 A' 3364 3002 0.85      
4 A' 3336 2977 1.97      
5 A' 1920 1714 49.57      
6 A' 1660 1482 0.09      
7 A' 1625 1450 0.42      
8 A' 1376 1228 0.18      
9 A' 1308 1167 0.14      
10 A' 1148 1024 1.02      
11 A' 1050 937 0.14      
12 A' 898 801 0.41      
13 A' 800 714 4.54      
14 A' 704 628 0.00      
15 A' 407 363 0.01      
16 A' 84 75 1.47      
17 A" 3452 3081 0.00      
18 A" 3332 2974 1.00      
19 A" 1616 1442 4.75      
20 A" 1401 1250 2.89      
21 A" 1324 1181 0.00      
22 A" 1310 1169 0.60      
23 A" 1111 991 71.07      
24 A" 1059 945 0.00      
25 A" 1042 930 3.99      
26 A" 747 667 0.00      
27 A" 462 413 4.43      

Unscaled Zero Point Vibrational Energy (zpe) 21734.1 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 19395.5 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/STO-3G
ABC
0.34940 0.15138 0.11249

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 -1.941 0.000
C2 -0.000 -0.700 0.000
C3 -0.000 0.405 1.131
C4 -0.000 0.405 -1.131
C5 0.000 1.501 0.000
H6 0.898 2.139 0.000
H7 -0.896 2.140 0.000
H8 -0.898 0.396 1.772
H9 -0.898 0.396 -1.772
H10 0.898 0.395 1.773
H11 0.898 0.395 -1.773

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
O11.24152.60482.60483.44184.17784.17833.06753.06753.06743.0674
C21.24151.58131.58132.20032.97742.97762.26902.26902.26912.2691
C32.60481.58132.26231.57462.25642.25641.10383.03931.10383.0396
C42.60481.58132.26231.57462.25642.25643.03931.10383.03961.1038
C53.44182.20031.57461.57461.10121.10122.27372.27372.27372.2737
H64.17782.97742.25642.25641.10121.79403.06693.06692.48652.4865
H74.17832.97762.25642.25641.10121.79402.48652.48653.06683.0668
H83.06752.26901.10383.03932.27373.06692.48653.54471.79643.9743
H93.06752.26903.03931.10382.27373.06692.48653.54473.97431.7964
H103.06742.26911.10383.03962.27372.48653.06681.79643.97433.5455
H113.06742.26913.03961.10382.27372.48653.06683.97431.79643.5455

picture of Cyclobutanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 134.329 O1 C2 C4 134.329
C2 C3 C5 88.409 C2 C3 H8 114.176
C2 C3 H10 114.182 C2 C4 C5 88.409
C2 C4 H9 114.176 C2 C4 H11 114.182
C3 C2 C4 91.342 C3 C5 C4 91.840
C3 C5 H6 113.800 C3 C5 H7 113.800
C4 C5 H6 113.800 C4 C5 H7 113.800
C5 C3 H8 115.057 C5 C3 H10 115.058
C5 C4 H9 115.057 C5 C4 H11 115.058
H6 C5 H7 109.086 H8 C3 H10 108.933
H9 C4 H11 108.933
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.174      
2 C 0.161      
3 C -0.160      
4 C -0.160      
5 C -0.138      
6 H 0.074      
7 H 0.074      
8 H 0.081      
9 H 0.081      
10 H 0.081      
11 H 0.081      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.000 1.676 0.000 1.676
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.521 0.000 0.000
y 0.000 -31.947 0.000
z 0.000 0.000 -27.153
Traceless
 xyz
x 3.030 0.000 0.000
y 0.000 -5.110 0.000
z 0.000 0.000 2.080
Polar
3z2-r24.160
x2-y25.426
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.639 0.000 0.000
y 0.000 4.089 0.000
z 0.000 0.000 3.438


<r2> (average value of r2) Å2
<r2> 108.929
(<r2>)1/2 10.437