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

using model chemistry: MP3=FULL/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP3=FULL/3-21G*
 hartrees
Energy at 0K-269.150093
Energy at 298.15K 
HF Energy-268.528656
Nuclear repulsion energy237.395165
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 MP3=FULL/3-21G*
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 3153 3153 26.26      
2 A1 3087 3087 1.77      
3 A1 3068 3068 17.91      
4 A1 1774 1774 34.64      
5 A1 1591 1591 6.85      
6 A1 1559 1559 19.13      
7 A1 1498 1498 7.81      
8 A1 1404 1404 6.63      
9 A1 1145 1145 3.87      
10 A1 1020 1020 1.48      
11 A1 785 785 0.94      
12 A1 422 422 0.32      
13 A1 202 202 0.33      
14 A2 3160 3160 0.00      
15 A2 3090 3090 0.00      
16 A2 1592 1592 0.00      
17 A2 1329 1329 0.00      
18 A2 1076 1076 0.00      
19 A2 763 763 0.00      
20 A2 208 208 0.00      
21 A2 62 62 0.00      
22 B1 3161 3161 42.26      
23 B1 3099 3099 13.66      
24 B1 1593 1593 12.43      
25 B1 1365 1365 1.38      
26 B1 1199 1199 0.54      
27 B1 860 860 11.07      
28 B1 492 492 0.22      
29 B1 182 182 0.14      
30 B1 68 68 0.14      
31 B2 3153 3153 13.42      
32 B2 3087 3087 30.68      
33 B2 3061 3061 7.01      
34 B2 1590 1590 7.68      
35 B2 1552 1552 1.48      
36 B2 1498 1498 8.82      
37 B2 1412 1412 25.53      
38 B2 1162 1162 76.48      
39 B2 1065 1065 3.11      
40 B2 953 953 14.00      
41 B2 646 646 3.49      
42 B2 330 330 16.31      

Unscaled Zero Point Vibrational Energy (zpe) 31758.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 31758.9 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 MP3=FULL/3-21G*
ABC
0.29003 0.06494 0.05525

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.285
C2 0.000 0.000 0.048
C3 0.000 1.302 -0.760
C4 0.000 -1.302 -0.760
C5 0.000 2.546 0.157
C6 0.000 -2.546 0.157
H7 0.883 1.301 -1.416
H8 -0.883 1.301 -1.416
H9 -0.883 -1.301 -1.416
H10 0.883 -1.301 -1.416
H11 0.000 3.465 -0.439
H12 -0.884 2.539 0.802
H13 0.884 2.539 0.802
H14 0.000 -3.465 -0.439
H15 0.884 -2.539 0.802
H16 -0.884 -2.539 0.802

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.23632.42442.42442.78442.78443.12483.12483.12483.12483.87002.73192.73193.87002.73192.7319
C21.23631.53301.53302.54842.54842.14832.14832.14832.14833.49892.79252.79253.49892.79252.7925
C32.42441.53302.60471.54553.95631.09961.09962.82572.82572.18612.18012.18014.77794.24044.2404
C42.42441.53302.60473.95631.54552.82572.82571.09961.09964.77794.24044.24042.18612.18012.1801
C52.78442.54841.54553.95635.09212.19212.19214.24874.24871.09551.09441.09446.04035.20185.2018
C62.78442.54843.95631.54555.09214.24874.24872.19212.19216.04035.20185.20181.09551.09441.0944
H73.12482.14831.09962.82572.19214.24871.76563.14382.60132.53313.09462.54034.94394.43444.7736
H83.12482.14831.09962.82572.19214.24871.76562.60133.14382.53312.54033.09464.94394.77364.4344
H93.12482.14832.82571.09964.24872.19213.14382.60131.76564.94394.43444.77362.53313.09462.5403
H103.12482.14832.82571.09964.24872.19212.60133.14381.76564.94394.77364.43442.53312.54033.0946
H113.87003.49892.18614.77791.09556.04032.53312.53314.94394.94391.78321.78326.92956.19456.1945
H122.73192.79252.18014.24041.09445.20183.09462.54034.43444.77361.78321.76896.19455.37785.0786
H132.73192.79252.18014.24041.09445.20182.54033.09464.77364.43441.78321.76896.19455.07865.3778
H143.87003.49894.77792.18616.04031.09554.94394.94392.53312.53316.92956.19456.19451.78321.7832
H152.73192.79254.24042.18015.20181.09444.43444.77363.09462.54036.19455.37785.07861.78321.7689
H162.73192.79254.24042.18015.20181.09444.77364.43442.54033.09466.19455.07865.37781.78321.7689

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 121.835 O1 C2 C4 121.835
C2 C3 C5 111.745 C2 C3 H7 108.251
C2 C3 H8 108.251 C2 C4 C6 111.745
C2 C4 H9 108.251 C2 C4 H10 108.251
C3 C2 C4 116.330 C3 C5 H11 110.576
C3 C5 H12 110.167 C3 C5 H13 110.167
C4 C6 H14 110.576 C4 C6 H15 110.167
C4 C6 H16 110.167 C5 C3 H7 110.810
C5 C3 H8 110.810 C6 C4 H9 110.810
C6 C4 H10 110.810 H7 C3 H8 106.795
H9 C4 H10 106.795 H11 C5 H12 109.025
H11 C5 H13 109.025 H12 C5 H13 107.822
H14 C6 H15 109.025 H14 C6 H16 109.025
H15 C6 H16 107.822
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability