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

using model chemistry: MP2=FULL/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-271.340881
Energy at 298.15K 
HF Energy-270.126072
Nuclear repulsion energy240.360510
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/6-311+G(3df,2p)
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 3188 3005 17.93      
2 A1 3098 2921 1.65      
3 A1 3076 2899 19.09      
4 A1 1769 1668 90.41      
5 A1 1521 1434 6.05      
6 A1 1476 1392 20.81      
7 A1 1427 1345 10.46      
8 A1 1363 1285 3.60      
9 A1 1134 1069 1.35      
10 A1 1041 981 2.07      
11 A1 799 753 2.91      
12 A1 415 391 0.37      
13 A1 198 187 0.97      
14 A2 3192 3009 0.00      
15 A2 3110 2932 0.00      
16 A2 1516 1429 0.00      
17 A2 1271 1198 0.00      
18 A2 1009 951 0.00      
19 A2 714 673 0.00      
20 A2 233 219 0.00      
21 A2 14 13 0.00      
22 B1 3192 3009 28.63      
23 B1 3120 2941 10.16      
24 B1 1516 1429 15.57      
25 B1 1318 1242 0.54      
26 B1 1146 1080 0.18      
27 B1 824 777 8.11      
28 B1 468 441 0.00      
29 B1 214 202 0.29      
30 B1 70 66 0.30      
31 B2 3188 3005 11.81      
32 B2 3098 2920 37.13      
33 B2 3067 2891 11.50      
34 B2 1522 1434 11.73      
35 B2 1463 1379 2.64      
36 B2 1426 1344 0.12      
37 B2 1406 1325 40.09      
38 B2 1158 1092 46.56      
39 B2 1029 970 14.15      
40 B2 992 935 14.28      
41 B2 629 593 4.03      
42 B2 314 296 11.06      

Unscaled Zero Point Vibrational Energy (zpe) 31359.1 cm-1
Scaled (by 0.9427) Zero Point Vibrational Energy (zpe) 29562.2 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/6-311+G(3df,2p)
ABC
0.29941 0.06619 0.05643

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.280
C2 0.000 0.000 0.065
C3 0.000 1.283 -0.733
C4 0.000 -1.283 -0.733
C5 0.000 2.525 0.133
C6 0.000 -2.525 0.133
H7 0.869 1.259 -1.395
H8 -0.869 1.259 -1.395
H9 -0.869 -1.259 -1.395
H10 0.869 -1.259 -1.395
H11 0.000 3.422 -0.479
H12 -0.875 2.545 0.777
H13 0.875 2.545 0.777
H14 0.000 -3.422 -0.479
H15 0.875 -2.545 0.777
H16 -0.875 -2.545 0.777

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.21482.38672.38672.77262.77263.08113.08113.08113.08113.84772.73762.73763.84772.73762.7376
C21.21481.51051.51052.52542.52542.11452.11452.11452.11453.46512.78362.78363.46512.78362.7836
C32.38671.51052.56521.51433.90441.09241.09242.76642.76642.15442.15372.15374.71154.20654.2065
C42.38671.51052.56523.90441.51432.76642.76641.09241.09244.71154.20654.20652.15442.15372.1537
C52.77262.52541.51433.90445.04902.16602.16604.17214.17211.08681.08621.08625.97805.18445.1844
C62.77262.52543.90441.51435.04904.17214.17212.16602.16605.97805.18445.18441.08681.08621.0862
H73.08112.11451.09242.76642.16604.17211.73763.05952.51822.50423.06752.52384.84834.38024.7145
H83.08112.11451.09242.76642.16604.17211.73762.51823.05952.50422.52383.06754.84834.71454.3802
H93.08112.11452.76641.09244.17212.16603.05952.51821.73764.84834.38024.71452.50423.06752.5238
H103.08112.11452.76641.09244.17212.16602.51823.05951.73764.84834.71454.38022.50422.52383.0675
H113.84773.46512.15444.71151.08685.97802.50422.50424.84834.84831.76441.76446.84416.16016.1601
H122.73762.78362.15374.20651.08625.18443.06752.52384.38024.71451.76441.74986.16015.38205.0897
H132.73762.78362.15374.20651.08625.18442.52383.06754.71454.38021.76441.74986.16015.08975.3820
H143.84773.46514.71152.15445.97801.08684.84834.84832.50422.50426.84416.16016.16011.76441.7644
H152.73762.78364.20652.15375.18441.08624.38024.71453.06752.52386.16015.38205.08971.76441.7498
H162.73762.78364.20652.15375.18441.08624.71454.38022.52383.06756.16015.08975.38201.76441.7498

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 121.887 O1 C2 C4 121.887
C2 C3 C5 113.211 C2 C3 H7 107.564
C2 C3 H8 107.564 C2 C4 C6 113.211
C2 C4 H9 107.564 C2 C4 H10 107.564
C3 C2 C4 116.227 C3 C5 H11 110.774
C3 C5 H12 110.750 C3 C5 H13 110.750
C4 C6 H14 110.774 C4 C6 H15 110.750
C4 C6 H16 110.750 C5 C3 H7 111.364
C5 C3 H8 111.364 C6 C4 H9 111.364
C6 C4 H10 111.364 H7 C3 H8 105.366
H9 C4 H10 105.366 H11 C5 H12 108.575
H11 C5 H13 108.575 H12 C5 H13 107.310
H14 C6 H15 108.575 H14 C6 H16 108.575
H15 C6 H16 107.310
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability