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All results from a given calculation for C4H6O (Cyclobutanone)

using model chemistry: B2PLYP/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 B2PLYP/6-31G*
 hartrees
Energy at 0K-230.963143
Energy at 298.15K 
HF Energy-230.733183
Nuclear repulsion energy169.229308
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 B2PLYP/6-31G*
Rotational Constants (cm-1) from geometry optimized at B2PLYP/6-31G*
ABC
0.32181 0.17428 0.13333

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.170 1.876 0.000
C2 -0.045 0.675 0.000
C3 0.066 -0.382 1.110
C4 0.066 -0.382 -1.110
C5 0.066 -1.476 0.000
H6 0.982 -2.069 0.000
H7 -0.788 -2.156 0.000
H8 -0.819 -0.439 1.751
H9 -0.819 -0.439 -1.751
H10 0.944 -0.256 1.751
H11 0.944 -0.256 -1.751

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
O11.20752.52702.52703.36024.10904.07862.97452.97452.97432.9743
C21.20751.53681.53682.15382.92912.92642.21522.21522.21522.2152
C32.52701.53682.22081.55892.21742.26001.09402.99561.09402.9954
C42.52701.53682.22081.55892.21742.26002.99561.09402.99541.0940
C53.36022.15381.55891.55891.09091.09092.21902.21902.30782.3078
H64.10902.92912.21742.21741.09091.77152.99392.99392.52072.5207
H74.07862.92642.26002.26001.09091.77152.45202.45203.11023.1102
H82.97452.21521.09402.99562.21902.99392.45203.50181.77263.9247
H92.97452.21522.99561.09402.21902.99392.45203.50183.92471.7726
H102.97432.21521.09402.99542.30782.52073.11021.77263.92473.5014
H112.97432.21522.99541.09402.30782.52073.11023.92471.77263.5014

picture of Cyclobutanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 133.737 O1 C2 C4 133.737
C2 C3 C5 88.166 C2 C3 H8 113.641
C2 C3 H10 113.643 C2 C4 C5 88.166
C2 C4 H9 113.641 C2 C4 H11 113.643
C3 C2 C4 92.526 C3 C5 C4 90.840
C3 C5 H6 112.411 C3 C5 H7 115.925
C4 C5 H6 112.411 C4 C5 H7 115.925
C5 C3 H8 112.343 C5 C3 H10 119.868
C5 C4 H9 112.343 C5 C4 H11 119.868
H6 C5 H7 108.575 H8 C3 H10 108.221
H9 C4 H11 108.221
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.467      
2 C 0.455      
3 C -0.361      
4 C -0.361      
5 C -0.339      
6 H 0.173      
7 H 0.185      
8 H 0.184      
9 H 0.184      
10 H 0.173      
11 H 0.173      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


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> 100.994
(<r2>)1/2 10.050