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/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-271.351077
Energy at 298.15K 
HF Energy-270.132688
Nuclear repulsion energy240.629208
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/aug-cc-pVTZ
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 3172 3018 18.07      
2 A1 3093 2943 1.62      
3 A1 3073 2923 19.64      
4 A1 1762 1676 88.80      
5 A1 1524 1450 5.48      
6 A1 1475 1403 19.75      
7 A1 1427 1358 11.68      
8 A1 1367 1301 3.94      
9 A1 1136 1081 1.43      
10 A1 1042 991 2.18      
11 A1 802 763 2.95      
12 A1 415 395 0.35      
13 A1 195 186 0.94      
14 A2 3175 3021 0.00      
15 A2 3099 2948 0.00      
16 A2 1522 1448 0.00      
17 A2 1283 1221 0.00      
18 A2 1016 967 0.00      
19 A2 705 671 0.00      
20 A2 216 206 0.00      
21 A2 30i 29i 0.00      
22 B1 3176 3021 28.74      
23 B1 3109 2958 9.96      
24 B1 1523 1449 14.86      
25 B1 1328 1263 0.64      
26 B1 1153 1097 0.22      
27 B1 821 781 8.07      
28 B1 462 440 0.00      
29 B1 201 192 0.34      
30 B1 66 63 0.30      
31 B2 3172 3017 11.02      
32 B2 3093 2942 37.92      
33 B2 3064 2915 11.67      
34 B2 1524 1450 11.45      
35 B2 1458 1387 2.70      
36 B2 1427 1357 0.07      
37 B2 1406 1338 39.45      
38 B2 1160 1104 46.69      
39 B2 1028 978 14.47      
40 B2 991 943 14.01      
41 B2 624 594 4.15      
42 B2 309 294 11.39      

Unscaled Zero Point Vibrational Energy (zpe) 31281.8 cm-1
Scaled (by 0.9514) Zero Point Vibrational Energy (zpe) 29761.5 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/aug-cc-pVTZ
ABC
0.29988 0.06635 0.05656

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.283
C2 0.000 0.000 0.067
C3 0.000 1.278 -0.730
C4 0.000 -1.278 -0.730
C5 0.000 2.523 0.129
C6 0.000 -2.523 0.129
H7 0.869 1.253 -1.390
H8 -0.869 1.253 -1.390
H9 -0.869 -1.253 -1.390
H10 0.869 -1.253 -1.390
H11 0.000 3.416 -0.490
H12 -0.875 2.544 0.771
H13 0.875 2.544 0.771
H14 0.000 -3.416 -0.490
H15 0.875 -2.544 0.771
H16 -0.875 -2.544 0.771

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.21572.38422.38422.77452.77453.07713.07713.07713.07713.84902.73902.73903.84902.73902.7390
C21.21571.50651.50652.52382.52382.10892.10892.10892.10893.46152.78142.78143.46152.78142.7814
C32.38421.50652.55701.51183.89721.09141.09142.75652.75652.15132.14972.14974.70114.19934.1993
C42.38421.50652.55703.89721.51182.75652.75651.09141.09144.70114.19934.19932.15132.14972.1497
C52.77452.52381.51183.89725.04602.16202.16204.16154.16151.08661.08591.08595.97165.18255.1825
C62.77452.52383.89721.51185.04604.16154.16152.16202.16205.97165.18255.18251.08661.08591.0859
H73.07712.10891.09142.75652.16204.16151.73723.04912.50582.49913.06272.51784.83404.36944.7045
H83.07712.10891.09142.75652.16204.16151.73722.50583.04912.49912.51783.06274.83404.70454.3694
H93.07712.10892.75651.09144.16152.16203.04912.50581.73724.83404.36944.70452.49913.06272.5178
H103.07712.10892.75651.09144.16152.16202.50583.04911.73724.83404.70454.36942.49912.51783.0627
H113.84903.46152.15134.70111.08665.97162.49912.49914.83404.83401.76541.76546.83296.15546.1554
H122.73902.78142.14974.19931.08595.18253.06272.51784.36944.70451.76541.75046.15545.38165.0890
H132.73902.78142.14974.19931.08595.18252.51783.06274.70454.36941.76541.75046.15545.08905.3816
H143.84903.46154.70112.15135.97161.08664.83404.83402.49912.49916.83296.15546.15541.76541.7654
H152.73902.78144.19932.14975.18251.08594.36944.70453.06272.51786.15545.38165.08901.76541.7504
H162.73902.78144.19932.14975.18251.08594.70454.36942.51783.06276.15545.08905.38161.76541.7504

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 121.932 O1 C2 C4 121.932
C2 C3 C5 113.474 C2 C3 H7 107.465
C2 C3 H8 107.465 C2 C4 C6 113.474
C2 C4 H9 107.465 C2 C4 H10 107.465
C3 C2 C4 116.136 C3 C5 H11 110.712
C3 C5 H12 110.624 C3 C5 H13 110.624
C4 C6 H14 110.712 C4 C6 H15 110.624
C4 C6 H16 110.624 C5 C3 H7 111.274
C5 C3 H8 111.274 C6 C4 H9 111.274
C6 C4 H10 111.274 H7 C3 H8 105.470
H9 C4 H10 105.470 H11 C5 H12 108.694
H11 C5 H13 108.694 H12 C5 H13 107.398
H14 C6 H15 108.694 H14 C6 H16 108.694
H15 C6 H16 107.398
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability