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

using model chemistry: QCISD/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD/6-31G
 hartrees
Energy at 0K-270.553342
Energy at 298.15K 
HF Energy-269.908116
Nuclear repulsion energy235.699723
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 QCISD/6-31G
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 3094 2982 38.50      
2 A1 3023 2913 1.06      
3 A1 2996 2887 30.15      
4 A1 1674 1613 50.34      
5 A1 1550 1493 10.43      
6 A1 1530 1474 16.24      
7 A1 1475 1421 6.49      
8 A1 1397 1346 7.22      
9 A1 1134 1093 3.36      
10 A1 1038 1000 3.17      
11 A1 786 757 0.42      
12 A1 415 400 0.32      
13 A1 201 193 0.54      
14 A2 3105 2992 0.00      
15 A2 3018 2909 0.00      
16 A2 1546 1490 0.00      
17 A2 1301 1253 0.00      
18 A2 1051 1013 0.00      
19 A2 763 735 0.00      
20 A2 210 202 0.00      
21 A2 43 42 0.00      
22 B1 3106 2993 55.99      
23 B1 3028 2918 25.90      
24 B1 1547 1490 10.93      
25 B1 1330 1281 1.65      
26 B1 1186 1143 0.26      
27 B1 848 817 9.47      
28 B1 471 454 0.05      
29 B1 195 188 0.27      
30 B1 61 59 0.23      
31 B2 3094 2981 16.16      
32 B2 3022 2912 46.15      
33 B2 2988 2879 7.97      
34 B2 1549 1493 7.66      
35 B2 1524 1469 0.25      
36 B2 1475 1421 5.85      
37 B2 1413 1361 23.08      
38 B2 1174 1131 62.34      
39 B2 1065 1026 0.55      
40 B2 969 933 14.37      
41 B2 632 609 5.62      
42 B2 321 309 13.50      

Unscaled Zero Point Vibrational Energy (zpe) 31172.0 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 30037.3 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 QCISD/6-31G
ABC
0.28739 0.06372 0.05428

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.310
C2 0.000 0.000 0.052
C3 0.000 1.308 -0.749
C4 0.000 -1.308 -0.749
C5 0.000 2.572 0.140
C6 0.000 -2.572 0.140
H7 0.883 1.301 -1.417
H8 -0.883 1.301 -1.417
H9 -0.883 -1.301 -1.417
H10 0.883 -1.301 -1.417
H11 0.000 3.480 -0.486
H12 -0.888 2.593 0.790
H13 0.888 2.593 0.790
H14 0.000 -3.480 -0.486
H15 0.888 -2.593 0.790
H16 -0.888 -2.593 0.790

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.25802.43892.43892.82592.82593.14733.14733.14733.14733.91602.78972.78973.91602.78972.7897
C21.25801.53371.53372.57402.57402.15142.15142.15142.15143.52132.83862.83863.52132.83862.8386
C32.43891.53372.61671.54513.98121.10731.10732.83472.83472.18752.19252.19254.79564.28694.2869
C42.43891.53372.61673.98121.54512.83472.83471.10731.10734.79564.28694.28692.18752.19252.1925
C52.82592.57401.54513.98125.14492.19522.19524.26704.26701.10251.10111.10116.08485.28145.2814
C62.82592.57403.98121.54515.14494.26704.26702.19522.19526.08485.28145.28141.10251.10111.1011
H73.14732.15141.10732.83472.19524.26701.76613.14492.60222.52853.11072.55714.95024.47594.8137
H83.14732.15141.10732.83472.19524.26701.76612.60223.14492.52852.55713.11074.95024.81374.4759
H93.14732.15142.83471.10734.26702.19523.14492.60221.76614.95024.47594.81372.52853.11072.5571
H103.14732.15142.83471.10734.26702.19522.60223.14491.76614.95024.81374.47592.52852.55713.1107
H113.91603.52132.18754.79561.10256.08482.52852.52854.95024.95021.79021.79026.96006.26896.2689
H122.78972.83862.19254.28691.10115.28143.11072.55714.47594.81371.79021.77676.26895.48175.1858
H132.78972.83862.19254.28691.10115.28142.55713.11074.81374.47591.79021.77676.26895.18585.4817
H143.91603.52134.79562.18756.08481.10254.95024.95022.52852.52856.96006.26896.26891.79021.7902
H152.78972.83864.28692.19255.28141.10114.47594.81373.11072.55716.26895.48175.18581.79021.7767
H162.78972.83864.28692.19255.28141.10114.81374.47592.55713.11076.26895.18585.48171.79021.7767

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 121.453 O1 C2 C4 121.453
C2 C3 C5 113.443 C2 C3 H7 108.011
C2 C3 H8 108.011 C2 C4 C6 113.443
C2 C4 H9 108.011 C2 C4 H10 108.011
C3 C2 C4 117.094 C3 C5 H11 110.300
C3 C5 H12 110.782 C3 C5 H13 110.782
C4 C6 H14 110.300 C4 C6 H15 110.782
C4 C6 H16 110.782 C5 C3 H7 110.628
C5 C3 H8 110.628 C6 C4 H9 110.628
C6 C4 H10 110.628 H7 C3 H8 105.784
H9 C4 H10 105.784 H11 C5 H12 108.664
H11 C5 H13 108.664 H12 C5 H13 107.565
H14 C6 H15 108.664 H14 C6 H16 108.664
H15 C6 H16 107.565
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability