return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C5H8O (Cyclopentanone)

using model chemistry: B97D3/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B97D3/6-311+G(3df,2p)
 hartrees
Energy at 0K-270.495702
Energy at 298.15K-270.505200
HF Energy-270.495702
Nuclear repulsion energy234.891645
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 B97D3/6-311+G(3df,2p)
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 3050 3011 6.78      
2 A 3036 2996 28.85      
3 A 2976 2938 28.65      
4 A 2969 2930 2.23      
5 A 1760 1738 254.99      
6 A 1480 1461 1.40      
7 A 1420 1401 0.23      
8 A 1309 1292 0.48      
9 A 1274 1257 1.38      
10 A 1193 1178 0.23      
11 A 1142 1127 0.37      
12 A 1014 1000 0.73      
13 A 940 928 0.13      
14 A 877 866 0.33      
15 A 789 778 2.67      
16 A 690 681 1.94      
17 A 555 548 5.51      
18 A 228 225 0.15      
19 B 3051 3011 28.69      
20 B 3041 3001 37.95      
21 B 2983 2944 46.45      
22 B 2969 2930 7.85      
23 B 1469 1450 4.03      
24 B 1419 1401 19.32      
25 B 1311 1294 2.64      
26 B 1266 1250 4.02      
27 B 1224 1208 1.62      
28 B 1139 1124 1.36      
29 B 1111 1097 74.47      
30 B 951 939 9.61      
31 B 905 893 0.58      
32 B 823 813 12.30      
33 B 576 568 2.25      
34 B 463 457 4.21      
35 B 441 435 2.27      
36 B 97 96 4.93      

Unscaled Zero Point Vibrational Energy (zpe) 25970.1 cm-1
Scaled (by 0.987) Zero Point Vibrational Energy (zpe) 25632.5 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 B97D3/6-311+G(3df,2p)
ABC
0.22060 0.11104 0.07980

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311+G(3df,2p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 2.138
C2 0.000 0.000 0.928
C3 0.000 1.242 0.028
C4 0.000 -1.242 0.028
C5 0.303 0.711 -1.381
C6 -0.303 -0.711 -1.381
H7 -1.011 1.671 0.079
H8 1.011 -1.671 0.079
H9 0.690 1.999 0.408
H10 -0.690 -1.999 0.408
H11 -0.102 1.342 -2.176
H12 0.102 -1.342 -2.176
H13 1.388 0.649 -1.530
H14 -1.388 -0.649 -1.530

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.20992.44802.44803.60233.60232.83762.83762.73232.73234.51934.51933.97493.9749
C21.20991.53331.53332.43442.43442.12932.12932.17802.17803.38353.38352.89632.8963
C32.44801.53332.48301.53532.42671.09923.08321.09293.33512.20913.39772.16882.8158
C42.44801.53332.48302.42671.53533.08321.09923.33511.09293.39772.20912.81582.1688
C53.60232.43441.53532.42671.54592.18562.88192.23773.39571.09322.21111.09702.1754
C63.60232.43442.42671.53531.54592.88192.18563.39572.23772.21111.09322.17541.0970
H72.83762.12931.09923.08322.18562.88193.90551.76293.69882.45393.92453.06352.8486
H82.83762.12933.08321.09922.88192.18563.90553.69881.76293.92452.45392.84863.0635
H92.73232.17801.09293.33512.23773.39571.76293.69884.22992.78164.26482.46253.8843
H102.73232.17803.33511.09293.39572.23773.69881.76294.22994.26482.78163.88432.4625
H114.51933.38352.20913.39771.09322.21112.45393.92452.78164.26482.69151.76542.4572
H124.51933.38353.39772.20912.21111.09323.92452.45394.26482.78162.69152.45721.7654
H133.97492.89632.16882.81581.09702.17543.06352.84862.46253.88431.76542.45723.0647
H143.97492.89632.81582.16882.17541.09702.84863.06353.88432.46252.45721.76543.0647

picture of Cyclopentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 125.986 O1 C2 C4 125.986
C2 C3 C5 105.134 C2 C3 H7 107.149
C2 C3 H9 110.723 C2 C4 C6 105.134
C2 C4 H8 107.149 C2 C4 H10 110.723
C3 C2 C4 108.027 C3 C5 C6 103.983
C3 C5 H11 113.300 C3 C5 H13 109.802
C4 C6 C5 103.983 C4 C6 H12 113.300
C4 C6 H14 109.802 C5 C3 H7 111.028
C5 C3 H9 115.382 C5 C6 H12 112.658
C5 C6 H14 109.669 C6 C4 H8 111.028
C6 C4 H10 115.382 C6 C5 H11 112.658
C6 C5 H13 109.669 H7 C3 H9 107.173
H8 C4 H10 107.173 H11 C5 H13 107.399
H12 C6 H14 107.399
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.725      
2 C 0.347      
3 C -0.102      
4 C -0.102      
5 C -0.224      
6 C -0.224      
7 H 0.149      
8 H 0.149      
9 H 0.119      
10 H 0.119      
11 H 0.109      
12 H 0.109      
13 H 0.138      
14 H 0.138      


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 -3.156 3.156
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.404 -0.195 0.000
y -0.195 -35.371 0.000
z 0.000 0.000 -45.200
Traceless
 xyz
x 4.881 -0.195 0.000
y -0.195 4.931 0.000
z 0.000 0.000 -9.812
Polar
3z2-r2-19.624
x2-y2-0.034
xy-0.195
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.630 0.101 0.000
y 0.101 9.778 0.000
z 0.000 0.000 10.451


<r2> (average value of r2) Å2
<r2> 153.810
(<r2>)1/2 12.402