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

using model chemistry: MP2=FULL/STO-3G

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/STO-3G
 hartrees
Energy at 0K-267.025848
Energy at 298.15K 
HF Energy-266.688439
Nuclear repulsion energy232.949554
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/STO-3G
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 3557 3162 2.96      
2 A1 3396 3018 3.59      
3 A1 3378 3002 1.09      
4 A1 1779 1581 6.35      
5 A1 1735 1543 2.40      
6 A1 1703 1514 0.98      
7 A1 1619 1439 0.32      
8 A1 1510 1342 0.23      
9 A1 1226 1090 0.49      
10 A1 1112 989 0.58      
11 A1 837 744 2.81      
12 A1 407 362 0.01      
13 A1 179 159 0.07      
14 A2 3559 3164 0.00      
15 A2 3503 3114 0.00      
16 A2 1730 1538 0.00      
17 A2 1415 1258 0.00      
18 A2 1136 1009 0.00      
19 A2 822 731 0.00      
20 A2 202 180 0.00      
21 A2 51 45 0.00      
22 B1 3559 3164 5.45      
23 B1 3505 3116 3.87      
24 B1 1730 1538 2.39      
25 B1 1432 1273 0.02      
26 B1 1246 1107 0.02      
27 B1 893 794 7.07      
28 B1 469 417 0.01      
29 B1 179 159 0.04      
30 B1 53 47 0.05      
31 B2 3557 3162 1.48      
32 B2 3394 3017 1.62      
33 B2 3378 3002 5.03      
34 B2 1735 1542 1.01      
35 B2 1703 1514 0.06      
36 B2 1619 1439 3.19      
37 B2 1536 1365 0.98      
38 B2 1237 1099 55.57      
39 B2 1141 1014 9.45      
40 B2 1057 940 20.91      
41 B2 635 564 5.54      
42 B2 282 250 3.08      

Unscaled Zero Point Vibrational Energy (zpe) 34596.4 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 30752.7 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/STO-3G
ABC
0.27619 0.06230 0.05287

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.350
C2 0.000 0.000 0.088
C3 0.000 1.324 -0.766
C4 0.000 -1.324 -0.766
C5 0.000 2.602 0.123
C6 0.000 -2.602 0.123
H7 0.890 1.317 -1.425
H8 -0.890 1.317 -1.425
H9 -0.890 -1.317 -1.425
H10 0.890 -1.317 -1.425
H11 0.000 3.511 -0.503
H12 -0.892 2.625 0.771
H13 0.892 2.625 0.771
H14 0.000 -3.511 -0.503
H15 0.892 -2.625 0.771
H16 -0.892 -2.625 0.771

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.26212.49602.49602.87702.87703.19783.19783.19783.19783.96972.83272.83273.96972.83272.8327
C21.26211.57531.57532.60252.60252.19412.19412.19412.19413.56002.85592.85593.56002.85592.8559
C32.49601.57532.64781.55724.02561.10731.10732.86332.86332.20232.20302.20304.84154.33084.3308
C42.49601.57532.64784.02561.55722.86332.86331.10731.10734.84154.33084.33082.20232.20302.2030
C52.87702.60251.55724.02565.20452.20022.20024.30664.30661.10341.10311.10316.14485.34285.3428
C62.87702.60254.02561.55725.20454.30664.30662.20022.20026.14485.34285.34281.10341.10311.1031
H73.19782.19411.10732.86332.20024.30661.77953.17822.63342.54043.11642.55654.99434.51264.8517
H83.19782.19411.10732.86332.20024.30661.77952.63343.17822.54042.55653.11644.99434.85174.5126
H93.19782.19412.86331.10734.30662.20023.17822.63341.77954.99434.51264.85172.54043.11642.5565
H103.19782.19412.86331.10734.30662.20022.63343.17821.77954.99434.85174.51262.54042.55653.1164
H113.96973.56002.20234.84151.10346.14482.54042.54044.99434.99431.79001.79007.02106.33016.3301
H122.83272.85592.20304.33081.10315.34283.11642.55654.51264.85171.79001.78486.33015.54595.2508
H132.83272.85592.20304.33081.10315.34282.55653.11644.85174.51261.79001.78486.33015.25085.5459
H143.96973.56004.84152.20236.14481.10344.99434.99432.54042.54047.02106.33016.33011.79001.7900
H152.83272.85594.33082.20305.34281.10314.51264.85173.11642.55656.33015.54595.25081.79001.7848
H162.83272.85594.33082.20305.34281.10314.85174.51262.55653.11646.33015.25085.54591.79001.7848

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 122.820 O1 C2 C4 122.820
C2 C3 C5 112.362 C2 C3 H7 108.490
C2 C3 H8 108.490 C2 C4 C6 112.362
C2 C4 H9 108.490 C2 C4 H10 108.490
C3 C2 C4 114.360 C3 C5 H11 110.581
C3 C5 H12 110.648 C3 C5 H13 110.648
C4 C6 H14 110.581 C4 C6 H15 110.648
C4 C6 H16 110.648 C5 C3 H7 110.192
C5 C3 H8 110.192 C6 C4 H9 110.192
C6 C4 H10 110.192 H7 C3 H8 106.942
H9 C4 H10 106.942 H11 C5 H12 108.439
H11 C5 H13 108.439 H12 C5 H13 107.999
H14 C6 H15 108.439 H14 C6 H16 108.439
H15 C6 H16 107.999
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability