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All results from a given calculation for C5H8O (Cyclopentanone)

using model chemistry: B2PLYP/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B2PLYP/6-311G**
 hartrees
Energy at 0K-270.366094
Energy at 298.15K-270.375747
HF Energy-270.061898
Nuclear repulsion energy235.295907
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/6-311G**
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 3131 3131 6.65      
2 A 3118 3118 21.79      
3 A 3057 3057 25.59      
4 A 3053 3053 1.35      
5 A 1810 1810 207.67      
6 A 1524 1524 1.59      
7 A 1467 1467 0.01      
8 A 1357 1357 0.19      
9 A 1318 1318 1.86      
10 A 1233 1233 0.06      
11 A 1185 1185 0.34      
12 A 1046 1046 0.76      
13 A 971 971 0.20      
14 A 908 908 0.41      
15 A 820 820 1.12      
16 A 714 714 1.23      
17 A 566 566 4.64      
18 A 240 240 0.13      
19 B 3132 3132 30.68      
20 B 3122 3122 30.46      
21 B 3063 3063 40.47      
22 B 3052 3052 8.21      
23 B 1510 1510 5.25      
24 B 1467 1467 19.49      
25 B 1354 1354 1.96      
26 B 1311 1311 7.41      
27 B 1264 1264 3.30      
28 B 1175 1175 6.70      
29 B 1161 1161 66.14      
30 B 979 979 12.34      
31 B 932 932 0.56      
32 B 853 853 10.34      
33 B 587 587 2.41      
34 B 473 473 4.68      
35 B 452 452 3.85      
36 B 101 101 4.54      

Unscaled Zero Point Vibrational Energy (zpe) 26751.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 26751.4 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 B2PLYP/6-311G**
ABC
0.22107 0.11150 0.08014

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 2.133
C2 0.000 0.000 0.925
C3 0.000 1.241 0.028
C4 0.000 -1.241 0.028
C5 0.307 0.708 -1.377
C6 -0.307 -0.708 -1.377
H7 -1.008 1.671 0.073
H8 1.008 -1.671 0.073
H9 0.692 1.992 0.409
H10 -0.692 -1.992 0.409
H11 -0.088 1.339 -2.174
H12 0.088 -1.339 -2.174
H13 1.390 0.637 -1.519
H14 -1.390 -0.637 -1.519

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.20772.44392.44393.59423.59422.83692.83692.72432.72434.51154.51153.95943.9594
C21.20771.53161.53162.42862.42862.12892.12892.17162.17163.37763.37762.88342.8834
C32.44391.53162.48221.53392.42241.09633.08151.09063.32872.20583.39342.16582.8024
C42.44391.53162.48222.42241.53393.08151.09633.32871.09063.39342.20582.80242.1658
C53.59422.42861.53392.42241.54382.18192.87292.23363.38871.09082.20801.09462.1707
C63.59422.42862.42241.53391.54382.87292.18193.38872.23362.20801.09082.17071.0946
H72.83692.12891.09633.08152.18192.87293.90201.76253.69192.45093.91323.05862.8299
H82.83692.12893.08151.09632.87292.18193.90203.69191.76253.91322.45092.82993.0586
H92.72432.17161.09063.32872.23363.38871.76253.69194.21872.77634.25902.45793.8691
H102.72432.17163.32871.09063.38872.23363.69191.76254.21874.25902.77633.86912.4579
H114.51153.37762.20583.39341.09082.20802.45093.91322.77634.25902.68471.76302.4561
H124.51153.37763.39342.20582.20801.09083.91322.45094.25902.77632.68472.45611.7630
H133.95942.88342.16582.80241.09462.17073.05862.82992.45793.86911.76302.45613.0589
H143.95942.88342.80242.16582.17071.09462.82993.05863.86912.45792.45611.76303.0589

picture of Cyclopentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 125.874 O1 C2 C4 125.874
C2 C3 C5 104.785 C2 C3 H7 107.043
C2 C3 H9 110.697 C2 C4 C6 104.785
C2 C4 H8 107.043 C2 C4 H10 110.697
C3 C2 C4 108.253 C3 C5 C6 103.825
C3 C5 H11 113.285 C3 C5 H13 109.838
C4 C6 C5 103.825 C4 C6 H12 113.285
C4 C6 H14 109.838 C5 C3 H7 111.012
C5 C3 H9 115.616 C5 C6 H12 112.746
C5 C6 H14 109.548 C6 C4 H8 111.012
C6 C4 H10 115.616 C6 C5 H11 112.746
C6 C5 H13 109.548 H7 C3 H9 107.400
H8 C4 H10 107.400 H11 C5 H13 107.554
H12 C6 H14 107.554
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.288      
2 C 0.194      
3 C -0.238      
4 C -0.238      
5 C -0.236      
6 C -0.236      
7 H 0.140      
8 H 0.140      
9 H 0.141      
10 H 0.141      
11 H 0.122      
12 H 0.122      
13 H 0.119      
14 H 0.119      


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 -2.861 2.861
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.541 -0.212 0.000
y -0.212 -35.704 0.000
z 0.000 0.000 -44.626
Traceless
 xyz
x 4.624 -0.212 0.000
y -0.212 4.379 0.000
z 0.000 0.000 -9.003
Polar
3z2-r2-18.007
x2-y20.163
xy-0.212
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.773 0.071 0.000
y 0.071 8.397 0.000
z 0.000 0.000 8.961


<r2> (average value of r2) Å2
<r2> 153.274
(<r2>)1/2 12.380