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: PBEPBEultrafine/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBEultrafine/6-311+G(3df,2p)
 hartrees
Energy at 0K-271.517731
Energy at 298.15K 
HF Energy-271.517731
Nuclear repulsion energy238.127156
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 PBEPBEultrafine/6-311+G(3df,2p)
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 3050 3050 25.51      
2 A1 2980 2980 2.36      
3 A1 2950 2950 23.75      
4 A1 1725 1725 120.96      
5 A1 1448 1448 6.59      
6 A1 1406 1406 22.47      
7 A1 1362 1362 9.77      
8 A1 1296 1296 8.88      
9 A1 1082 1082 1.72      
10 A1 998 998 1.84      
11 A1 760 760 3.61      
12 A1 398 398 0.52      
13 A1 187 187 1.03      
14 A2 3053 3053 0.00      
15 A2 2966 2966 0.00      
16 A2 1439 1439 0.00      
17 A2 1215 1215 0.00      
18 A2 961 961 0.00      
19 A2 679 679 0.00      
20 A2 185 185 0.00      
21 A2 29 29 0.00      
22 B1 3053 3053 37.30      
23 B1 2977 2977 13.37      
24 B1 1439 1439 16.17      
25 B1 1259 1259 0.42      
26 B1 1094 1094 0.22      
27 B1 793 793 9.80      
28 B1 450 450 0.13      
29 B1 162 162 0.25      
30 B1 68 68 0.29      
31 B2 3050 3050 11.62      
32 B2 2980 2980 44.83      
33 B2 2941 2941 16.90      
34 B2 1448 1448 11.74      
35 B2 1391 1391 3.10      
36 B2 1361 1361 4.18      
37 B2 1326 1326 35.47      
38 B2 1102 1102 52.82      
39 B2 971 971 16.60      
40 B2 948 948 24.87      
41 B2 601 601 1.45      
42 B2 294 294 11.61      

Unscaled Zero Point Vibrational Energy (zpe) 29937.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 29937.8 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 PBEPBEultrafine/6-311+G(3df,2p)
ABC
0.29561 0.06464 0.05520

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.295
C2 0.000 0.000 0.076
C3 0.000 1.294 -0.730
C4 0.000 -1.294 -0.730
C5 0.000 2.556 0.123
C6 0.000 -2.556 0.123
H7 0.874 1.266 -1.405
H8 -0.874 1.266 -1.405
H9 -0.874 -1.266 -1.405
H10 0.874 -1.266 -1.405
H11 0.000 3.454 -0.509
H12 -0.882 2.591 0.775
H13 0.882 2.591 0.775
H14 0.000 -3.454 -0.509
H15 0.882 -2.591 0.775
H16 -0.882 -2.591 0.775

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.21962.40312.40312.81232.81233.10713.10713.10713.10713.89702.78632.78633.89702.78632.7863
C21.21961.52391.52392.55682.55682.13452.13452.13452.13453.50342.82502.82503.50342.82502.8250
C32.40311.52392.58701.52393.94321.10411.10412.78692.78692.17212.17392.17394.75294.25824.2582
C42.40311.52392.58703.94321.52392.78692.78691.10411.10414.75294.25824.25822.17212.17392.1739
C52.81232.55681.52393.94325.11262.18242.18244.20754.20751.09801.09741.09746.04375.26295.2629
C62.81232.55683.94321.52395.11264.20754.20752.18242.18246.04375.26295.26291.09801.09741.0974
H73.10712.13451.10412.78692.18244.20751.74713.07552.53102.52113.09662.55064.88284.42964.7650
H83.10712.13451.10412.78692.18244.20751.74712.53103.07552.52112.55063.09664.88284.76504.4296
H93.10712.13452.78691.10414.20752.18243.07552.53101.74714.88284.42964.76502.52113.09662.5506
H103.10712.13452.78691.10414.20752.18242.53103.07551.74714.88284.76504.42962.52112.55063.0966
H113.89703.50342.17214.75291.09806.04372.52112.52114.88284.88281.78071.78076.90856.24276.2427
H122.78632.82502.17394.25821.09745.26293.09662.55064.42964.76501.78071.76486.24275.47435.1821
H132.78632.82502.17394.25821.09745.26292.55063.09664.76504.42961.78071.76486.24275.18215.4743
H143.89703.50344.75292.17216.04371.09804.88284.88282.52112.52116.90856.24276.24271.78071.7807
H152.78632.82504.25822.17395.26291.09744.42964.76503.09662.55066.24275.47435.18211.78071.7648
H162.78632.82504.25822.17395.26291.09744.76504.42962.55063.09666.24275.18215.47431.78071.7648

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 121.920 O1 C2 C4 121.920
C2 C3 C5 114.041 C2 C3 H7 107.551
C2 C3 H8 107.551 C2 C4 C6 114.041
C2 C4 H9 107.551 C2 C4 H10 107.551
C3 C2 C4 116.161 C3 C5 H11 110.828
C3 C5 H12 111.010 C3 C5 H13 111.010
C4 C6 H14 110.828 C4 C6 H15 111.010
C4 C6 H16 111.010 C5 C3 H7 111.287
C5 C3 H8 111.287 C6 C4 H9 111.287
C6 C4 H10 111.287 H7 C3 H8 104.597
H9 C4 H10 104.597 H11 C5 H12 108.407
H11 C5 H13 108.407 H12 C5 H13 107.045
H14 C6 H15 108.407 H14 C6 H16 108.407
H15 C6 H16 107.045
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.704      
2 C 0.222      
3 C -0.089      
4 C -0.089      
5 C -0.304      
6 C -0.304      
7 H 0.133      
8 H 0.133      
9 H 0.133      
10 H 0.133      
11 H 0.112      
12 H 0.128      
13 H 0.128      
14 H 0.112      
15 H 0.128      
16 H 0.128      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.716 2.716
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.551 0.000 0.000
y 0.000 -37.318 0.000
z 0.000 0.000 -41.804
Traceless
 xyz
x 2.010 0.000 0.000
y 0.000 2.359 0.000
z 0.000 0.000 -4.369
Polar
3z2-r2-8.738
x2-y2-0.233
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.133 0.000 0.000
y 0.000 12.235 0.000
z 0.000 0.000 10.184


<r2> (average value of r2) Å2
<r2> 216.919
(<r2>)1/2 14.728