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: MP3=FULL/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP3=FULL/6-31G
 hartrees
Energy at 0K-270.533569
Energy at 298.15K 
HF Energy-269.910396
Nuclear repulsion energy236.555579
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/6-31G
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 3136 3136 36.76      
2 A1 3063 3063 1.25      
3 A1 3034 3034 28.73      
4 A1 1766 1766 57.25      
5 A1 1565 1565 11.46      
6 A1 1546 1546 14.69      
7 A1 1490 1490 6.59      
8 A1 1412 1412 5.65      
9 A1 1148 1148 3.14      
10 A1 1052 1052 3.00      
11 A1 803 803 0.46      
12 A1 419 419 0.35      
13 A1 202 202 0.60      
14 A2 3147 3147 0.00      
15 A2 3056 3056 0.00      
16 A2 1561 1561 0.00      
17 A2 1312 1312 0.00      
18 A2 1060 1060 0.00      
19 A2 769 769 0.00      
20 A2 213 213 0.00      
21 A2 46 46 0.00      
22 B1 3147 3147 53.76      
23 B1 3066 3066 25.65      
24 B1 1561 1561 11.77      
25 B1 1341 1341 1.83      
26 B1 1199 1199 0.37      
27 B1 856 856 9.67      
28 B1 478 478 0.01      
29 B1 199 199 0.25      
30 B1 63 63 0.23      
31 B2 3136 3136 15.82      
32 B2 3063 3063 44.30      
33 B2 3027 3027 9.06      
34 B2 1564 1564 8.09      
35 B2 1539 1539 0.34      
36 B2 1489 1489 6.02      
37 B2 1432 1432 28.06      
38 B2 1189 1189 63.86      
39 B2 1076 1076 0.34      
40 B2 982 982 14.98      
41 B2 646 646 6.78      
42 B2 324 324 13.65      

Unscaled Zero Point Vibrational Energy (zpe) 31590.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 31590.0 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/6-31G
ABC
0.29095 0.06401 0.05461

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.298
C2 0.000 0.000 0.052
C3 0.000 1.305 -0.745
C4 0.000 -1.305 -0.745
C5 0.000 2.567 0.141
C6 0.000 -2.567 0.141
H7 0.881 1.297 -1.411
H8 -0.881 1.297 -1.411
H9 -0.881 -1.297 -1.411
H10 0.881 -1.297 -1.411
H11 0.000 3.472 -0.483
H12 -0.886 2.587 0.790
H13 0.886 2.587 0.790
H14 0.000 -3.472 -0.483
H15 0.886 -2.587 0.790
H16 -0.886 -2.587 0.790

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.24532.42402.42402.81522.81523.13013.13013.13013.13013.90192.78092.78093.90192.78092.7809
C21.24531.52941.52942.56842.56842.14502.14502.14502.14503.51302.83192.83193.51302.83192.8319
C32.42401.52942.61041.54193.97221.10451.10452.82712.82712.18262.18702.18704.78444.27634.2763
C42.42401.52942.61043.97221.54192.82712.82711.10451.10454.78444.27634.27632.18262.18702.1870
C52.81522.56841.54193.97225.13372.19072.19074.25654.25651.09961.09821.09826.07105.26915.2691
C62.81522.56843.97221.54195.13374.25654.25652.19072.19076.07105.26915.26911.09961.09821.0982
H73.13012.14501.10452.82712.19074.25651.76153.13592.59442.52343.10322.55114.93794.46424.8012
H83.13012.14501.10452.82712.19074.25651.76152.59443.13592.52342.55113.10324.93794.80124.4642
H93.13012.14502.82711.10454.25652.19073.13592.59441.76154.93794.46424.80122.52343.10322.5511
H103.13012.14502.82711.10454.25652.19072.59443.13591.76154.93794.80124.46422.52342.55113.1032
H113.90193.51302.18264.78441.09966.07102.52342.52344.93794.93791.78571.78576.94406.25396.2539
H122.78092.83192.18704.27631.09825.26913.10322.55114.46424.80121.78571.77236.25395.46835.1732
H132.78092.83192.18704.27631.09825.26912.55113.10324.80124.46421.78571.77236.25395.17325.4683
H143.90193.51304.78442.18266.07101.09964.93794.93792.52342.52346.94406.25396.25391.78571.7857
H152.78092.83194.27632.18705.26911.09824.46424.80123.10322.55116.25395.46835.17321.78571.7723
H162.78092.83194.27632.18705.26911.09824.80124.46422.55113.10326.25395.17325.46831.78571.7723

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 121.420 O1 C2 C4 121.420
C2 C3 C5 113.488 C2 C3 H7 107.963
C2 C3 H8 107.963 C2 C4 C6 113.488
C2 C4 H9 107.963 C2 C4 H10 107.963
C3 C2 C4 117.160 C3 C5 H11 110.313
C3 C5 H12 110.740 C3 C5 H13 110.740
C4 C6 H14 110.313 C4 C6 H15 110.740
C4 C6 H16 110.740 C5 C3 H7 110.659
C5 C3 H8 110.659 C6 C4 H9 110.659
C6 C4 H10 110.659 H7 C3 H8 105.764
H9 C4 H10 105.764 H11 C5 H12 108.687
H11 C5 H13 108.687 H12 C5 H13 107.590
H14 C6 H15 108.687 H14 C6 H16 108.687
H15 C6 H16 107.590
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability