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

using model chemistry: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-270.951134
Energy at 298.15K 
HF Energy-270.051530
Nuclear repulsion energy238.938018
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 MP2/6-31+G**
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 3225 3034 25.10      
2 A1 3132 2946 1.92      
3 A1 3109 2925 26.37      
4 A1 1755 1650 81.81      
5 A1 1543 1452 6.34      
6 A1 1509 1419 15.98      
7 A1 1459 1372 11.63      
8 A1 1388 1306 4.13      
9 A1 1147 1079 1.11      
10 A1 1049 987 2.48      
11 A1 804 756 1.90      
12 A1 418 393 0.36      
13 A1 198 187 0.79      
14 A2 3234 3042 0.00      
15 A2 3148 2961 0.00      
16 A2 1537 1446 0.00      
17 A2 1289 1212 0.00      
18 A2 1020 959 0.00      
19 A2 733 690 0.00      
20 A2 226 212 0.00      
21 A2 49i 46i 0.00      
22 B1 3235 3043 37.95      
23 B1 3157 2970 16.72      
24 B1 1537 1446 14.34      
25 B1 1327 1248 2.11      
26 B1 1166 1097 0.32      
27 B1 836 786 6.19      
28 B1 463 435 0.01      
29 B1 209 196 0.23      
30 B1 58 55 0.29      
31 B2 3225 3033 13.39      
32 B2 3131 2945 45.97      
33 B2 3101 2917 9.10      
34 B2 1543 1452 10.82      
35 B2 1497 1408 1.71      
36 B2 1458 1372 0.08      
37 B2 1428 1343 34.21      
38 B2 1172 1103 49.94      
39 B2 1044 982 10.30      
40 B2 997 938 14.88      
41 B2 631 593 4.25      
42 B2 312 294 11.07      

Unscaled Zero Point Vibrational Energy (zpe) 31699.3 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 29816.3 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 MP2/6-31+G**
ABC
0.29559 0.06537 0.05571

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.294
C2 0.000 0.000 0.063
C3 0.000 1.291 -0.735
C4 0.000 -1.291 -0.735
C5 0.000 2.541 0.131
C6 0.000 -2.541 0.131
H7 0.871 1.269 -1.397
H8 -0.871 1.269 -1.397
H9 -0.871 -1.269 -1.397
H10 0.871 -1.269 -1.397
H11 0.000 3.435 -0.492
H12 -0.878 2.565 0.774
H13 0.878 2.565 0.774
H14 0.000 -3.435 -0.492
H15 0.878 -2.565 0.774
H16 -0.878 -2.565 0.774

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.23142.40512.40512.79442.79443.10083.10083.10083.10083.87142.76022.76023.87142.76022.7602
C21.23141.51751.51752.54182.54182.12192.12192.12192.12193.47932.80242.80243.47932.80242.8024
C32.40511.51752.58131.52103.92831.09471.09472.78402.78402.15792.16132.16134.73174.23224.2322
C42.40511.51752.58133.92831.52102.78402.78401.09471.09474.73174.23224.23222.15792.16132.1613
C52.79442.54181.52103.92835.08172.17092.17094.19674.19671.08961.08841.08846.00805.22015.2201
C62.79442.54183.92831.52105.08174.19674.19672.17092.17096.00805.22015.22011.08961.08841.0884
H73.10082.12191.09472.78402.17094.19671.74293.07912.53842.50383.07452.52834.86904.40594.7405
H83.10082.12191.09472.78402.17094.19671.74292.53843.07912.50382.52833.07454.86904.74054.4059
H93.10082.12192.78401.09474.19672.17093.07912.53841.74294.86904.40594.74052.50383.07452.5283
H103.10082.12192.78401.09474.19672.17092.53843.07911.74294.86904.74054.40592.50382.52833.0745
H113.87143.47932.15794.73171.08966.00802.50382.50384.86904.86901.76931.76936.86966.19406.1940
H122.76022.80242.16134.23221.08845.22013.07452.52834.40594.74051.76931.75606.19405.42145.1292
H132.76022.80242.16134.23221.08845.22012.52833.07454.74054.40591.76931.75606.19405.12925.4214
H143.87143.47934.73172.15796.00801.08964.86904.86902.50382.50386.86966.19406.19401.76931.7693
H152.76022.80244.23222.16135.22011.08844.40594.74053.07452.52836.19405.42145.12921.76931.7560
H162.76022.80244.23222.16135.22011.08844.74054.40592.52833.07456.19405.12925.42141.76931.7560

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 121.729 O1 C2 C4 121.729
C2 C3 C5 113.551 C2 C3 H7 107.545
C2 C3 H8 107.545 C2 C4 C6 113.551
C2 C4 H9 107.545 C2 C4 H10 107.545
C3 C2 C4 116.541 C3 C5 H11 110.406
C3 C5 H12 110.749 C3 C5 H13 110.749
C4 C6 H14 110.406 C4 C6 H15 110.749
C4 C6 H16 110.749 C5 C3 H7 111.140
C5 C3 H8 111.140 C6 C4 H9 111.140
C6 C4 H10 111.140 H7 C3 H8 105.511
H9 C4 H10 105.511 H11 C5 H12 108.651
H11 C5 H13 108.651 H12 C5 H13 107.548
H14 C6 H15 108.651 H14 C6 H16 108.651
H15 C6 H16 107.548
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability