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All results from a given calculation for C5H10O (3-Pentanone)

using model chemistry: MP2=FULL/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2=FULL/6-311G*
 hartrees
Energy at 0K-271.078441
Energy at 298.15K 
HF Energy-270.086547
Nuclear repulsion energy239.253561
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 MP2=FULL/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 A1 3185 3017 25.48      
2 A1 3097 2933 2.27      
3 A1 3078 2915 24.96      
4 A1 1776 1682 69.40      
5 A1 1539 1458 9.45      
6 A1 1505 1425 20.08      
7 A1 1454 1377 14.71      
8 A1 1378 1305 4.64      
9 A1 1143 1083 1.36      
10 A1 1046 991 2.79      
11 A1 803 760 2.31      
12 A1 416 394 0.44      
13 A1 201 190 0.51      
14 A2 3192 3024 0.00      
15 A2 3112 2948 0.00      
16 A2 1535 1454 0.00      
17 A2 1289 1220 0.00      
18 A2 1023 969 0.00      
19 A2 724 686 0.00      
20 A2 226 214 0.00      
21 A2 37i 35i 0.00      
22 B1 3193 3024 38.91      
23 B1 3122 2957 16.94      
24 B1 1535 1454 19.25      
25 B1 1332 1262 0.95      
26 B1 1163 1101 0.33      
27 B1 833 789 9.59      
28 B1 464 440 0.16      
29 B1 210 199 0.18      
30 B1 65 62 0.16      
31 B2 3185 3017 14.36      
32 B2 3097 2933 39.62      
33 B2 3070 2907 8.99      
34 B2 1539 1458 14.10      
35 B2 1492 1413 2.47      
36 B2 1453 1377 2.21      
37 B2 1419 1344 48.78      
38 B2 1166 1104 52.57      
39 B2 1037 982 7.82      
40 B2 997 944 17.73      
41 B2 636 602 3.78      
42 B2 318 302 12.16      

Unscaled Zero Point Vibrational Energy (zpe) 31505.8 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 29839.2 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 MP2=FULL/6-311G*
ABC
0.29718 0.06554 0.05590

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.281
C2 0.000 0.000 0.063
C3 0.000 1.292 -0.738
C4 0.000 -1.292 -0.738
C5 0.000 2.536 0.138
C6 0.000 -2.536 0.138
H7 0.872 1.276 -1.403
H8 -0.872 1.276 -1.403
H9 -0.872 -1.276 -1.403
H10 0.872 -1.276 -1.403
H11 0.000 3.440 -0.474
H12 -0.878 2.554 0.784
H13 0.878 2.554 0.784
H14 0.000 -3.440 -0.474
H15 0.878 -2.554 0.784
H16 -0.878 -2.554 0.784

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.21822.39672.39672.78142.78143.09703.09703.09703.09703.86202.74592.74593.86202.74592.7459
C21.21821.51961.51962.53662.53662.12982.12982.12982.12983.48192.79512.79513.48192.79512.7951
C32.39671.51962.58321.52113.92591.09701.09702.79172.79172.16492.16332.16334.73924.22774.2277
C42.39671.51962.58323.92591.52112.79172.79171.09701.09704.73924.22774.22772.16492.16332.1633
C52.78142.53661.52113.92595.07102.17282.17284.20224.20221.09201.09071.09076.00705.20475.2047
C62.78142.53663.92591.52115.07104.20224.20222.17282.17286.00705.20475.20471.09201.09071.0907
H73.09702.12981.09702.79172.17284.20221.74473.09082.55132.51193.07892.53274.88514.40964.7445
H83.09702.12981.09702.79172.17284.20221.74472.55133.09082.51192.53273.07894.88514.74454.4096
H93.09702.12982.79171.09704.20222.17283.09082.55131.74474.88514.40964.74452.51193.07892.5327
H103.09702.12982.79171.09704.20222.17282.55133.09081.74474.88514.74454.40962.51192.53273.0789
H113.86203.48192.16494.73921.09206.00702.51192.51194.88514.88511.77181.77186.88066.18716.1871
H122.74592.79512.16334.22771.09075.20473.07892.53274.40964.74451.77181.75686.18715.40115.1074
H132.74592.79512.16334.22771.09075.20472.53273.07894.74454.40961.77181.75686.18715.10745.4011
H143.86203.48194.73922.16496.00701.09204.88514.88512.51192.51196.88066.18716.18711.77181.7718
H152.74592.79514.22772.16335.20471.09074.40964.74453.07892.53276.18715.40115.10741.77181.7568
H162.74592.79514.22772.16335.20471.09074.74454.40962.53273.07896.18715.10745.40111.77181.7568

picture of 3-Pentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 121.796 O1 C2 C4 121.796
C2 C3 C5 113.068 C2 C3 H7 107.878
C2 C3 H8 107.878 C2 C4 C6 113.068
C2 C4 H9 107.878 C2 C4 H10 107.878
C3 C2 C4 116.409 C3 C5 H11 110.818
C3 C5 H12 110.772 C3 C5 H13 110.772
C4 C6 H14 110.818 C4 C6 H15 110.772
C4 C6 H16 110.772 C5 C3 H7 111.145
C5 C3 H8 111.145 C6 C4 H9 111.145
C6 C4 H10 111.145 H7 C3 H8 105.356
H9 C4 H10 105.356 H11 C5 H12 108.538
H11 C5 H13 108.538 H12 C5 H13 107.292
H14 C6 H15 108.538 H14 C6 H16 108.538
H15 C6 H16 107.292
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability