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All results from a given calculation for C5H8O (Cyclopentanone)

using model chemistry: MP3/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP3/cc-pVTZ
 hartrees
Energy at 0K-270.057101
Energy at 298.15K-270.066808
HF Energy-268.959899
Nuclear repulsion energy236.246360
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 MP3/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 3171 2996 4.15      
2 A 3157 2982 19.83      
3 A 3092 2921 20.50      
4 A 3088 2917 0.58      
5 A 1904 1798 217.03      
6 A 1532 1447 1.35      
7 A 1477 1395 0.10      
8 A 1364 1289 0.10      
9 A 1332 1258 1.12      
10 A 1244 1175 0.02      
11 A 1199 1133 0.61      
12 A 1054 996 0.54      
13 A 979 925 0.07      
14 A 920 869 0.44      
15 A 836 790 1.16      
16 A 726 686 0.75      
17 A 571 540 4.75      
18 A 245 231 0.08      
19 B 3172 2996 19.89      
20 B 3161 2986 27.14      
21 B 3096 2925 35.92      
22 B 3089 2918 5.76      
23 B 1517 1433 4.78      
24 B 1477 1395 18.08      
25 B 1364 1289 2.68      
26 B 1326 1253 9.70      
27 B 1277 1207 3.10      
28 B 1197 1131 57.45      
29 B 1185 1120 4.33      
30 B 986 931 9.34      
31 B 936 884 0.42      
32 B 864 816 7.69      
33 B 587 555 2.07      
34 B 482 455 7.47      
35 B 458 432 3.05      
36 B 96 90 4.56      

Unscaled Zero Point Vibrational Energy (zpe) 27078.9 cm-1
Scaled (by 0.9447) Zero Point Vibrational Energy (zpe) 25581.5 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 MP3/cc-pVTZ
ABC
0.22222 0.11261 0.08092

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 2.120
C2 0.000 0.000 0.921
C3 0.000 1.239 0.030
C4 0.000 -1.239 0.030
C5 0.314 0.703 -1.371
C6 -0.314 -0.703 -1.371
H7 -1.006 1.661 0.067
H8 1.006 -1.661 0.067
H9 0.688 1.988 0.409
H10 -0.688 -1.988 0.409
H11 -0.068 1.335 -2.168
H12 0.068 -1.335 -2.168
H13 1.394 0.619 -1.502
H14 -1.394 -0.619 -1.502

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.19882.42972.42973.57493.57492.82572.82572.71212.71214.49134.49133.92963.9296
C21.19881.52611.52612.41812.41812.12152.12152.16552.16553.36583.36582.86282.8628
C32.42971.52612.47711.53202.41451.09183.06971.08593.32112.20053.38482.16112.7816
C42.42971.52612.47712.41451.53203.06971.09183.32111.08593.38482.20052.78162.1611
C53.57492.41811.53202.41451.54002.17482.85282.22693.37851.08632.20221.09062.1636
C63.57492.41812.41451.53201.54002.85282.17483.37852.22692.20221.08632.16361.0906
H72.82572.12151.09183.06972.17482.85283.88441.75853.67942.44603.88953.05052.7952
H82.82572.12153.06971.09182.85282.17483.88443.67941.75853.88952.44602.79523.0505
H92.71212.16551.08593.32112.22693.37851.75853.67944.20792.76324.25062.45403.8446
H102.71212.16553.32111.08593.37852.22693.67941.75854.20794.25062.76323.84462.4540
H114.49133.36582.20053.38481.08632.20222.44603.88952.76324.25062.67371.75832.4537
H124.49133.36583.38482.20052.20221.08633.88952.44604.25062.76322.67372.45371.7583
H133.92962.86282.16112.78161.09062.16363.05052.79522.45403.84461.75832.45373.0498
H143.92962.86282.78162.16112.16361.09062.79523.05053.84462.45402.45371.75833.0498

picture of Cyclopentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 125.749 O1 C2 C4 125.749
C2 C3 C5 104.503 C2 C3 H7 107.104
C2 C3 H9 110.883 C2 C4 C6 104.503
C2 C4 H8 107.104 C2 C4 H10 110.883
C3 C2 C4 108.503 C3 C5 C6 103.622
C3 C5 H11 113.270 C3 C5 H13 109.838
C4 C6 C5 103.622 C4 C6 H12 113.270
C4 C6 H14 109.838 C5 C3 H7 110.852
C5 C3 H9 115.505 C5 C6 H12 112.826
C5 C6 H14 109.480 C6 C4 H8 110.852
C6 C4 H10 115.505 C6 C5 H11 112.826
C6 C5 H13 109.480 H7 C3 H9 107.706
H8 C4 H10 107.706 H11 C5 H13 107.744
H12 C6 H14 107.744
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability