return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP2=FULL/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-271.339842
Energy at 298.15K 
HF Energy-270.139237
Nuclear repulsion energy240.319695
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/Def2TZVPP
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 3181 3181 18.03      
2 A1 3093 3093 1.98      
3 A1 3076 3076 19.34      
4 A1 1764 1764 81.94      
5 A1 1514 1514 5.69      
6 A1 1469 1469 17.71      
7 A1 1425 1425 12.19      
8 A1 1358 1358 4.14      
9 A1 1132 1132 1.14      
10 A1 1037 1037 2.05      
11 A1 798 798 2.68      
12 A1 413 413 0.40      
13 A1 197 197 0.74      
14 A2 3185 3185 0.00      
15 A2 3109 3109 0.00      
16 A2 1510 1510 0.00      
17 A2 1275 1275 0.00      
18 A2 1009 1009 0.00      
19 A2 715 715 0.00      
20 A2 217 217 0.00      
21 A2 23i 23i 0.00      
22 B1 3185 3185 29.02      
23 B1 3119 3119 10.36      
24 B1 1510 1510 14.99      
25 B1 1319 1319 0.75      
26 B1 1148 1148 0.21      
27 B1 824 824 7.94      
28 B1 467 467 0.00      
29 B1 197 197 0.28      
30 B1 67 67 0.27      
31 B2 3181 3181 11.61      
32 B2 3093 3093 35.98      
33 B2 3068 3068 10.94      
34 B2 1514 1514 11.60      
35 B2 1456 1456 2.92      
36 B2 1424 1424 0.00      
37 B2 1402 1402 40.58      
38 B2 1157 1157 48.47      
39 B2 1026 1026 14.60      
40 B2 990 990 14.08      
41 B2 629 629 4.10      
42 B2 310 310 11.43      

Unscaled Zero Point Vibrational Energy (zpe) 31267.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 31267.3 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=FULL/Def2TZVPP
ABC
0.29924 0.06615 0.05640

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/Def2TZVPP

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 0.064
C3 0.000 1.283 -0.734
C4 0.000 -1.283 -0.734
C5 0.000 2.526 0.134
C6 0.000 -2.526 0.134
H7 0.868 1.260 -1.394
H8 -0.868 1.260 -1.394
H9 -0.868 -1.260 -1.394
H10 0.868 -1.260 -1.394
H11 0.000 3.422 -0.478
H12 -0.874 2.544 0.776
H13 0.874 2.544 0.776
H14 0.000 -3.422 -0.478
H15 0.874 -2.544 0.776
H16 -0.874 -2.544 0.776

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.21582.38832.38832.77352.77353.08113.08113.08113.08113.84762.73652.73653.84762.73652.7365
C21.21581.51141.51142.52652.52652.11392.11392.11392.11393.46492.78232.78233.46492.78232.7823
C32.38831.51142.56671.51543.90661.09071.09072.76752.76752.15402.15262.15264.71244.20614.2061
C42.38831.51142.56673.90661.51542.76752.76751.09071.09074.71244.20614.20612.15402.15262.1526
C52.77352.52651.51543.90665.05122.16542.16544.17384.17381.08571.08511.08515.97915.18405.1840
C62.77352.52653.90661.51545.05124.17384.17382.16542.16545.97915.18405.18401.08571.08511.0851
H73.08112.11391.09072.76752.16544.17381.73593.06052.52062.50303.06482.52144.84944.37964.7134
H83.08112.11391.09072.76752.16544.17381.73592.52063.06052.50302.52143.06484.84944.71344.3796
H93.08112.11392.76751.09074.17382.16543.06052.52061.73594.84944.37964.71342.50303.06482.5214
H103.08112.11392.76751.09074.17382.16542.52063.06051.73594.84944.71344.37962.50302.52143.0648
H113.84763.46492.15404.71241.08575.97912.50302.50304.84944.84941.76371.76376.84426.15866.1586
H122.73652.78232.15264.20611.08515.18403.06482.52144.37964.71341.76371.74856.15865.37945.0873
H132.73652.78232.15264.20611.08515.18402.52143.06484.71344.37961.76371.74856.15865.08735.3794
H143.84763.46494.71242.15405.97911.08574.84944.84942.50302.50306.84426.15866.15861.76371.7637
H152.73652.78234.20612.15265.18401.08514.37964.71343.06482.52146.15865.37945.08731.76371.7485
H162.73652.78234.20612.15265.18401.08514.71344.37962.52143.06486.15865.08735.37941.76371.7485

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 121.885 O1 C2 C4 121.885
C2 C3 C5 113.175 C2 C3 H7 107.561
C2 C3 H8 107.561 C2 C4 C6 113.175
C2 C4 H9 107.561 C2 C4 H10 107.561
C3 C2 C4 116.230 C3 C5 H11 110.724
C3 C5 H12 110.654 C3 C5 H13 110.654
C4 C6 H14 110.724 C4 C6 H15 110.654
C4 C6 H16 110.654 C5 C3 H7 111.343
C5 C3 H8 111.343 C6 C4 H9 111.343
C6 C4 H10 111.343 H7 C3 H8 105.460
H9 C4 H10 105.460 H11 C5 H12 108.676
H11 C5 H13 108.676 H12 C5 H13 107.359
H14 C6 H15 108.676 H14 C6 H16 108.676
H15 C6 H16 107.359
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability