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All results from a given calculation for C4H6O (Cyclobutanone)

using model chemistry: B3LYP/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-231.315634
Energy at 298.15K-231.322328
Nuclear repulsion energy167.570131
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/cc-pVTZ
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' 3129 3024 26.67      
2 A' 3095 2991 4.63      
3 A' 3080 2977 24.52      
4 A' 3055 2953 8.05      
5 A' 1866 1804 310.06      
6 A' 1500 1450 0.97      
7 A' 1445 1397 1.07      
8 A' 1238 1197 4.67      
9 A' 1222 1181 0.17      
10 A' 1098 1062 0.12      
11 A' 965 933 2.42      
12 A' 837 809 3.29      
13 A' 740 715 3.41      
14 A' 673 651 0.88      
15 A' 402 389 1.26      
16 A' 41 40 3.91      
17 A" 3101 2997 1.10      
18 A" 3051 2949 16.00      
19 A" 1429 1382 19.19      
20 A" 1273 1230 6.81      
21 A" 1226 1185 0.19      
22 A" 1187 1148 1.45      
23 A" 1079 1043 87.04      
24 A" 946 915 0.08      
25 A" 916 886 0.33      
26 A" 626 605 0.02      
27 A" 459 443 3.09      

Unscaled Zero Point Vibrational Energy (zpe) 19840.5 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 19177.8 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 B3LYP/cc-pVTZ
ABC
0.36217 0.16049 0.11877

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.071 1.872 0.000
C2 0.000 0.678 0.000
C3 0.042 -0.382 1.108
C4 0.042 -0.382 -1.108
C5 -0.025 -1.475 0.000
H6 -0.956 -2.036 0.000
H7 0.805 -2.178 0.000
H8 0.972 -0.357 1.677
H9 0.972 -0.357 -1.677
H10 -0.791 -0.336 1.810
H11 -0.791 -0.336 -1.810

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
O11.19572.51402.51403.34714.00694.14282.97752.97752.94382.9438
C21.19571.53401.53402.15342.87772.96682.19752.19752.21992.2199
C32.51401.53402.21541.55752.22682.24311.09102.93641.09013.0342
C42.51401.53402.21541.55752.22682.24312.93641.09103.03421.0901
C53.34712.15341.55751.55751.08741.08692.24922.24922.27152.2715
H64.00692.87772.22682.22681.08741.76673.05843.05842.48862.4886
H74.14282.96682.24312.24311.08691.76672.48152.48153.03523.0352
H82.97752.19751.09102.93642.24923.05842.48153.35471.76793.9073
H92.97752.19752.93641.09102.24923.05842.48153.35473.90731.7679
H102.94382.21991.09013.03422.27152.48863.03521.76793.90733.6193
H112.94382.21993.03421.09012.27152.48863.03523.90731.76793.6193

picture of Cyclobutanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 133.762 O1 C2 C4 133.762
C2 C3 C5 88.297 C2 C3 H8 112.578
C2 C3 H10 114.493 C2 C4 C5 88.297
C2 C4 H9 112.578 C2 C4 H11 114.493
C3 C2 C4 92.455 C3 C5 C4 90.669
C3 C5 H6 113.497 C3 C5 H7 114.878
C4 C5 H6 113.497 C4 C5 H7 114.878
C5 C3 H8 115.121 C5 C3 H10 117.077
C5 C4 H9 115.121 C5 C4 H11 117.077
H6 C5 H7 108.688 H8 C3 H10 108.302
H9 C4 H11 108.302
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.250     -0.516
2 C 0.213     0.622
3 C -0.213     -0.278
4 C -0.213     -0.278
5 C -0.168     0.104
6 H 0.100     0.003
7 H 0.100     0.002
8 H 0.108     0.085
9 H 0.108     0.085
10 H 0.107     0.085
11 H 0.107     0.085


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.174 -2.875 0.000 2.880
CHELPG        
AIM        
ESP 0.199 -2.944 0.000 2.950


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.559 0.255 0.000
y 0.255 -36.773 0.000
z 0.000 0.000 -29.163
Traceless
 xyz
x 4.409 0.255 0.000
y 0.255 -7.912 0.000
z 0.000 0.000 3.503
Polar
3z2-r27.007
x2-y28.214
xy0.255
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.645 -0.058 0.000
y -0.058 7.831 0.000
z 0.000 0.000 7.345


<r2> (average value of r2) Å2
<r2> 106.331
(<r2>)1/2 10.312