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

using model chemistry: MP2/CEP-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 MP2/CEP-31G
 hartrees
Energy at 0K-49.350170
Energy at 298.15K 
HF Energy-48.829843
Nuclear repulsion energy130.392818
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/CEP-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 3146 3040 64.21      
2 A1 3045 2942 0.05      
3 A1 3034 2932 59.81      
4 A1 1595 1542 27.64      
5 A1 1527 1476 10.29      
6 A1 1498 1448 20.53      
7 A1 1454 1405 10.00      
8 A1 1383 1336 5.10      
9 A1 1123 1086 2.24      
10 A1 1029 994 4.58      
11 A1 778 752 1.41      
12 A1 401 388 0.20      
13 A1 191 184 0.67      
14 A2 3157 3051 0.00      
15 A2 3086 2982 0.00      
16 A2 1521 1470 0.00      
17 A2 1282 1239 0.00      
18 A2 1042 1007 0.00      
19 A2 758 732 0.00      
20 A2 205 198 0.00      
21 A2 34i 33i 0.00      
22 B1 3158 3051 112.83      
23 B1 3096 2991 43.04      
24 B1 1521 1470 13.82      
25 B1 1312 1268 2.10      
26 B1 1174 1135 0.86      
27 B1 835 807 13.18      
28 B1 455 440 0.02      
29 B1 199 192 0.33      
30 B1 61 59 0.36      
31 B2 3145 3039 30.11      
32 B2 3044 2941 68.53      
33 B2 3027 2925 15.82      
34 B2 1527 1476 7.85      
35 B2 1492 1442 1.50      
36 B2 1456 1407 4.82      
37 B2 1407 1360 24.23      
38 B2 1161 1122 52.86      
39 B2 1054 1019 0.54      
40 B2 964 931 15.38      
41 B2 612 592 5.02      
42 B2 304 294 10.70      

Unscaled Zero Point Vibrational Energy (zpe) 31111.7 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 30063.3 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/CEP-31G
ABC
0.27823 0.06203 0.05277

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.345
C2 0.000 0.000 0.061
C3 0.000 1.327 -0.753
C4 0.000 -1.327 -0.753
C5 0.000 2.609 0.147
C6 0.000 -2.609 0.147
H7 0.892 1.313 -1.421
H8 -0.892 1.313 -1.421
H9 -0.892 -1.313 -1.421
H10 0.892 -1.313 -1.421
H11 0.000 3.519 -0.491
H12 -0.895 2.628 0.801
H13 0.895 2.628 0.801
H14 0.000 -3.519 -0.491
H15 0.895 -2.628 0.801
H16 -0.895 -2.628 0.801

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.28462.48312.48312.87102.87103.19003.19003.19003.19003.96902.82902.82903.96902.82902.8290
C21.28461.55671.55672.61012.61012.17192.17192.17192.17193.56172.87322.87323.56172.87322.8732
C32.48311.55672.65361.56644.03711.11451.11452.86552.86552.20772.21622.21624.85274.34264.3426
C42.48311.55672.65364.03711.56642.86552.86551.11451.11454.85274.34264.34262.20772.21622.2162
C52.87102.61011.56644.03715.21742.22112.22114.31694.31691.11101.10901.10906.16065.35285.3528
C62.87102.61014.03711.56645.21744.31694.31692.22112.22116.16065.35285.35281.11101.10901.1090
H73.19002.17191.11452.86552.22114.31691.78403.17492.62632.55483.14052.58265.00104.52474.8648
H83.19002.17191.11452.86552.22114.31691.78402.62633.17492.55482.58263.14055.00104.86484.5247
H93.19002.17192.86551.11454.31692.22113.17492.62631.78405.00104.52474.86482.55483.14052.5826
H103.19002.17192.86551.11454.31692.22112.62633.17491.78405.00104.86484.52472.55482.58263.1405
H113.96903.56172.20774.85271.11106.16062.55482.55485.00105.00101.80651.80657.03766.34456.3445
H122.82902.87322.21624.34261.10905.35283.14052.58264.52474.86481.80651.78996.34455.55235.2559
H132.82902.87322.21624.34261.10905.35282.58263.14054.86484.52471.80651.78996.34455.25595.5523
H143.96903.56174.85272.20776.16061.11105.00105.00102.55482.55487.03766.34456.34451.80651.8065
H152.82902.87324.34262.21625.35281.10904.52474.86483.14052.58266.34455.55235.25591.80651.7899
H162.82902.87324.34262.21625.35281.10904.86484.52472.58263.14056.34455.25595.55231.80651.7899

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 121.539 O1 C2 C4 121.539
C2 C3 C5 113.388 C2 C3 H7 107.644
C2 C3 H8 107.644 C2 C4 C6 113.388
C2 C4 H9 107.644 C2 C4 H10 107.644
C3 C2 C4 116.923 C3 C5 H11 109.929
C3 C5 H12 110.697 C3 C5 H13 110.697
C4 C6 H14 109.929 C4 C6 H15 110.697
C4 C6 H16 110.697 C5 C3 H7 110.760
C5 C3 H8 110.760 C6 C4 H9 110.760
C6 C4 H10 110.760 H7 C3 H8 106.326
H9 C4 H10 106.326 H11 C5 H12 108.928
H11 C5 H13 108.928 H12 C5 H13 107.601
H14 C6 H15 108.928 H14 C6 H16 108.928
H15 C6 H16 107.601
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability