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: PBEPBE/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/6-311G**
 hartrees
Energy at 0K-271.498486
Energy at 298.15K 
HF Energy-271.498486
Nuclear repulsion energy237.862530
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 PBEPBE/6-311G**
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 3059 3031 29.71      
2 A1 2986 2959 3.52      
3 A1 2956 2929 26.54      
4 A1 1733 1717 109.98      
5 A1 1451 1438 6.68      
6 A1 1409 1396 18.74      
7 A1 1363 1351 12.65      
8 A1 1296 1284 10.03      
9 A1 1084 1074 1.23      
10 A1 998 989 2.15      
11 A1 762 755 2.80      
12 A1 398 394 0.54      
13 A1 188 186 0.56      
14 A2 3061 3033 0.00      
15 A2 2974 2947 0.00      
16 A2 1441 1428 0.00      
17 A2 1216 1205 0.00      
18 A2 964 955 0.00      
19 A2 683 677 0.00      
20 A2 180 178 0.00      
21 A2 8i 8i 0.00      
22 B1 3062 3034 44.00      
23 B1 2985 2957 18.64      
24 B1 1441 1428 17.34      
25 B1 1260 1248 0.63      
26 B1 1096 1086 0.36      
27 B1 797 789 11.07      
28 B1 451 447 0.48      
29 B1 151 150 0.23      
30 B1 65 64 0.21      
31 B2 3059 3031 14.07      
32 B2 2986 2959 44.24      
33 B2 2947 2920 14.54      
34 B2 1451 1438 13.09      
35 B2 1394 1382 3.17      
36 B2 1363 1350 4.76      
37 B2 1330 1318 40.85      
38 B2 1104 1094 59.10      
39 B2 973 964 15.92      
40 B2 951 942 22.94      
41 B2 605 599 1.48      
42 B2 298 296 12.99      

Unscaled Zero Point Vibrational Energy (zpe) 29979.9 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 29707.1 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 PBEPBE/6-311G**
ABC
0.29508 0.06458 0.05515

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.289
C2 0.000 0.000 0.068
C3 0.000 1.299 -0.735
C4 0.000 -1.299 -0.735
C5 0.000 2.555 0.132
C6 0.000 -2.555 0.132
H7 0.876 1.277 -1.410
H8 -0.876 1.277 -1.410
H9 -0.876 -1.277 -1.410
H10 0.876 -1.277 -1.410
H11 0.000 3.463 -0.490
H12 -0.884 2.580 0.785
H13 0.884 2.580 0.785
H14 0.000 -3.463 -0.490
H15 0.884 -2.580 0.785
H16 -0.884 -2.580 0.785

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.22112.40542.40542.80552.80553.11233.11233.11233.11233.89322.77392.77393.89322.77392.7739
C21.22111.52731.52732.55622.55622.14112.14112.14112.14113.50732.82022.82023.50732.82022.8202
C32.40541.52732.59751.52673.95051.10591.10592.80322.80322.17752.17592.17594.76764.25924.2592
C42.40541.52732.59753.95051.52672.80322.80321.10591.10594.76764.25924.25922.17752.17592.1759
C52.80552.55621.52673.95055.11082.18602.18604.22294.22291.10001.09931.09936.05005.25215.2521
C62.80552.55623.95051.52675.11084.22294.22292.18602.18606.05005.25215.25211.10001.09931.0993
H73.11232.14111.10592.80322.18604.22291.75143.09702.55422.52763.10062.55304.90684.43854.7745
H83.11232.14111.10592.80322.18604.22291.75142.55423.09702.52762.55303.10064.90684.77454.4385
H93.11232.14112.80321.10594.22292.18603.09702.55421.75144.90684.43854.77452.52763.10062.5530
H103.11232.14112.80321.10594.22292.18602.55423.09701.75144.90684.77454.43852.52762.55303.1006
H113.89323.50732.17754.76761.10006.05002.52762.52764.90684.90681.78491.78496.92506.23906.2390
H122.77392.82022.17594.25921.09935.25213.10062.55304.43854.77451.78491.76776.23905.45525.1609
H132.77392.82022.17594.25921.09935.25212.55303.10064.77454.43851.78491.76776.23905.16095.4552
H143.89323.50734.76762.17756.05001.10004.90684.90682.52762.52766.92506.23906.23901.78491.7849
H152.77392.82024.25922.17595.25211.09934.43854.77453.10062.55306.23905.45525.16091.78491.7677
H162.77392.82024.25922.17595.25211.09934.77454.43852.55303.10066.23905.16095.45521.78491.7677

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 121.745 O1 C2 C4 121.745
C2 C3 C5 113.655 C2 C3 H7 107.729
C2 C3 H8 107.729 C2 C4 C6 113.655
C2 C4 H9 107.729 C2 C4 H10 107.729
C3 C2 C4 116.510 C3 C5 H11 110.954
C3 C5 H12 110.866 C3 C5 H13 110.866
C4 C6 H14 110.954 C4 C6 H15 110.866
C4 C6 H16 110.866 C5 C3 H7 111.269
C5 C3 H8 111.269 C6 C4 H9 111.269
C6 C4 H10 111.269 H7 C3 H8 104.714
H9 C4 H10 104.714 H11 C5 H12 108.501
H11 C5 H13 108.501 H12 C5 H13 107.023
H14 C6 H15 108.501 H14 C6 H16 108.501
H15 C6 H16 107.023
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.271      
2 C 0.188      
3 C -0.301      
4 C -0.301      
5 C -0.323      
6 C -0.323      
7 H 0.143      
8 H 0.143      
9 H 0.143      
10 H 0.143      
11 H 0.117      
12 H 0.131      
13 H 0.131      
14 H 0.117      
15 H 0.131      
16 H 0.131      


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 -2.530 2.530
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.384 0.000 0.000
y 0.000 -37.325 0.000
z 0.000 0.000 -41.244
Traceless
 xyz
x 1.901 0.000 0.000
y 0.000 1.989 0.000
z 0.000 0.000 -3.890
Polar
3z2-r2-7.779
x2-y2-0.059
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.390 0.000 0.000
y 0.000 10.902 0.000
z 0.000 0.000 9.168


<r2> (average value of r2) Å2
<r2> 216.999
(<r2>)1/2 14.731