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

using model chemistry: MP2/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/STO-3G
 hartrees
Energy at 0K-267.023447
Energy at 298.15K 
HF Energy-266.688412
Nuclear repulsion energy232.904246
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/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 3556 3101 2.98      
2 A1 3396 2961 3.58      
3 A1 3378 2945 1.09      
4 A1 1780 1552 6.44      
5 A1 1735 1513 2.38      
6 A1 1702 1484 0.96      
7 A1 1619 1411 0.32      
8 A1 1509 1316 0.23      
9 A1 1226 1069 0.49      
10 A1 1112 969 0.58      
11 A1 837 729 2.81      
12 A1 407 355 0.01      
13 A1 179 156 0.07      
14 A2 3559 3103 0.00      
15 A2 3504 3055 0.00      
16 A2 1730 1508 0.00      
17 A2 1415 1234 0.00      
18 A2 1135 990 0.00      
19 A2 822 716 0.00      
20 A2 200 175 0.00      
21 A2 44 39 0.00      
22 B1 3559 3103 5.48      
23 B1 3505 3056 3.87      
24 B1 1730 1509 2.40      
25 B1 1432 1249 0.02      
26 B1 1245 1086 0.02      
27 B1 892 778 7.07      
28 B1 468 408 0.01      
29 B1 177 154 0.04      
30 B1 51 44 0.05      
31 B2 3556 3101 1.47      
32 B2 3395 2960 1.64      
33 B2 3378 2945 5.04      
34 B2 1735 1513 0.99      
35 B2 1703 1485 0.06      
36 B2 1618 1411 3.22      
37 B2 1535 1339 0.97      
38 B2 1236 1078 55.46      
39 B2 1141 994 9.58      
40 B2 1057 921 21.11      
41 B2 635 553 5.55      
42 B2 281 245 3.08      

Unscaled Zero Point Vibrational Energy (zpe) 34585.2 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 30154.9 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/STO-3G
ABC
0.27613 0.06225 0.05284

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.351
C2 0.000 0.000 0.089
C3 0.000 1.324 -0.766
C4 0.000 -1.324 -0.766
C5 0.000 2.603 0.123
C6 0.000 -2.603 0.123
H7 0.890 1.316 -1.425
H8 -0.890 1.316 -1.425
H9 -0.890 -1.316 -1.425
H10 0.890 -1.316 -1.425
H11 0.000 3.512 -0.504
H12 -0.892 2.626 0.771
H13 0.892 2.626 0.771
H14 0.000 -3.512 -0.504
H15 0.892 -2.626 0.771
H16 -0.892 -2.626 0.771

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.26192.49652.49652.87842.87843.19793.19793.19793.19793.97132.83392.83393.97132.83392.8339
C21.26191.57591.57592.60362.60362.19432.19432.19432.19433.56132.85652.85653.56132.85652.8565
C32.49651.57592.64841.55754.02681.10721.10722.86332.86332.20322.20292.20294.84304.33184.3318
C42.49651.57592.64844.02681.55752.86332.86331.10721.10724.84304.33184.33182.20322.20292.2029
C52.87842.60361.55754.02685.20672.20052.20054.30704.30701.10351.10311.10316.14715.34485.3448
C62.87842.60364.02681.55755.20674.30704.30702.20052.20056.14715.34485.34481.10351.10311.1031
H73.19792.19431.10722.86332.20054.30701.77973.17792.63292.54143.11642.55644.99514.51284.8520
H83.19792.19431.10722.86332.20054.30701.77972.63293.17792.54142.55643.11644.99514.85204.5128
H93.19792.19432.86331.10724.30702.20053.17792.63291.77974.99514.51284.85202.54143.11642.5564
H103.19792.19432.86331.10724.30702.20052.63293.17791.77974.99514.85204.51282.54142.55643.1164
H113.97133.56132.20324.84301.10356.14712.54142.54144.99514.99511.79011.79017.02346.33236.3323
H122.83392.85652.20294.33181.10315.34483.11642.55644.51284.85201.79011.78486.33235.54785.2529
H132.83392.85652.20294.33181.10315.34482.55643.11644.85204.51281.79011.78486.33235.25295.5478
H143.97133.56134.84302.20326.14711.10354.99514.99512.54142.54147.02346.33236.33231.79011.7901
H152.83392.85654.33182.20295.34481.10314.51284.85203.11642.55646.33235.54785.25291.79011.7848
H162.83392.85654.33182.20295.34481.10314.85204.51282.55643.11646.33235.25295.54781.79011.7848

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 122.834 O1 C2 C4 122.834
C2 C3 C5 112.382 C2 C3 H7 108.466
C2 C3 H8 108.466 C2 C4 C6 112.382
C2 C4 H9 108.466 C2 C4 H10 108.466
C3 C2 C4 114.333 C3 C5 H11 110.621
C3 C5 H12 110.628 C3 C5 H13 110.628
C4 C6 H14 110.621 C4 C6 H15 110.628
C4 C6 H16 110.628 C5 C3 H7 110.194
C5 C3 H8 110.194 C6 C4 H9 110.194
C6 C4 H10 110.194 H7 C3 H8 106.966
H9 C4 H10 106.966 H11 C5 H12 108.437
H11 C5 H13 108.437 H12 C5 H13 108.003
H14 C6 H15 108.437 H14 C6 H16 108.437
H15 C6 H16 108.003
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability