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

using model chemistry: HF/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/CEP-121G*
 hartrees
Energy at 0K-48.978859
Energy at 298.15K 
HF Energy-48.978859
Nuclear repulsion energy133.787384
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 HF/CEP-121G*
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 3263 2948 76.52      
2 A1 3198 2889 9.05      
3 A1 3187 2879 40.37      
4 A1 1956 1767 194.08      
5 A1 1629 1471 8.17      
6 A1 1606 1451 9.36      
7 A1 1552 1402 7.71      
8 A1 1490 1346 1.37      
9 A1 1201 1085 3.58      
10 A1 1078 973 2.66      
11 A1 837 756 0.01      
12 A1 425 384 0.69      
13 A1 204 184 0.62      
14 A2 3281 2964 0.00      
15 A2 3206 2897 0.00      
16 A2 1622 1466 0.00      
17 A2 1370 1237 0.00      
18 A2 1086 981 0.00      
19 A2 766 692 0.00      
20 A2 236 213 0.00      
21 A2 40i 36i 0.00      
22 B1 3282 2965 107.34      
23 B1 3221 2909 42.27      
24 B1 1623 1466 10.09      
25 B1 1419 1282 2.07      
26 B1 1245 1125 0.05      
27 B1 879 794 6.12      
28 B1 498 450 1.11      
29 B1 220 198 0.43      
30 B1 60 54 0.43      
31 B2 3262 2947 21.23      
32 B2 3195 2887 71.13      
33 B2 3177 2870 28.46      
34 B2 1630 1473 8.95      
35 B2 1595 1441 1.16      
36 B2 1557 1406 6.78      
37 B2 1527 1379 14.00      
38 B2 1227 1109 63.89      
39 B2 1096 990 11.21      
40 B2 1014 916 13.89      
41 B2 665 601 12.42      
42 B2 325 294 13.28      

Unscaled Zero Point Vibrational Energy (zpe) 32933.5 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 29752.2 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 HF/CEP-121G*
ABC
0.30041 0.06429 0.05508

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.287
C2 0.000 0.000 0.087
C3 0.000 1.298 -0.723
C4 0.000 -1.298 -0.723
C5 0.000 2.564 0.139
C6 0.000 -2.564 0.139
H7 0.868 1.279 -1.381
H8 -0.868 1.279 -1.381
H9 -0.868 -1.279 -1.381
H10 0.868 -1.279 -1.381
H11 0.000 3.448 -0.495
H12 -0.876 2.601 0.779
H13 0.876 2.601 0.779
H14 0.000 -3.448 -0.495
H15 0.876 -2.601 0.779
H16 -0.876 -2.601 0.779

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.19962.39182.39182.80952.80953.08293.08293.08293.08293.88092.79122.79123.88092.79122.7912
C21.19961.52941.52942.56502.56502.13152.13152.13152.13153.49672.83042.83043.49672.83042.8304
C32.39181.52942.59511.53223.95691.08961.08962.79712.79712.16252.17262.17264.75104.26854.2685
C42.39181.52942.59513.95691.53222.79712.79711.08961.08964.75104.26854.26852.16252.17262.1726
C52.80952.56501.53223.95695.12882.17192.17194.22294.22291.08731.08501.08506.04575.27815.2781
C62.80952.56503.95691.53225.12884.22294.22292.17192.17196.04575.27815.27811.08731.08501.0850
H73.08292.13151.08962.79712.17194.22291.73623.09102.55732.49913.07462.53234.88684.44034.7704
H83.08292.13151.08962.79712.17194.22291.73622.55733.09102.49912.53233.07464.88684.77044.4403
H93.08292.13152.79711.08964.22292.17193.09102.55731.73624.88684.44034.77042.49913.07462.5323
H103.08292.13152.79711.08964.22292.17192.55733.09101.73624.88684.77044.44032.49912.53233.0746
H113.88093.49672.16254.75101.08736.04572.49912.49914.88684.88681.76211.76216.89606.24346.2434
H122.79122.83042.17264.26851.08505.27813.07462.53234.44034.77041.76211.75146.24345.48925.2023
H132.79122.83042.17264.26851.08505.27812.53233.07464.77044.44031.76211.75146.24345.20235.4892
H143.88093.49674.75102.16256.04571.08734.88684.88682.49912.49916.89606.24346.24341.76211.7621
H152.79122.83044.26852.17265.27811.08504.44034.77043.07462.53236.24345.48925.20231.76211.7514
H162.79122.83044.26852.17265.27811.08504.77044.44032.53233.07466.24345.20235.48921.76211.7514

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 121.964 O1 C2 C4 121.964
C2 C3 C5 113.812 C2 C3 H7 107.765
C2 C3 H8 107.765 C2 C4 C6 113.812
C2 C4 H9 107.765 C2 C4 H10 107.765
C3 C2 C4 116.072 C3 C5 H11 110.132
C3 C5 H12 111.068 C3 C5 H13 111.068
C4 C6 H14 110.132 C4 C6 H15 111.068
C4 C6 H16 111.068 C5 C3 H7 110.739
C5 C3 H8 110.739 C6 C4 H9 110.739
C6 C4 H10 110.739 H7 C3 H8 105.632
H9 C4 H10 105.632 H11 C5 H12 108.420
H11 C5 H13 108.420 H12 C5 H13 107.633
H14 C6 H15 108.420 H14 C6 H16 108.420
H15 C6 H16 107.633
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.397      
2 C 0.364      
3 C -0.335      
4 C -0.335      
5 C -0.493      
6 C -0.493      
7 H 0.170      
8 H 0.170      
9 H 0.170      
10 H 0.170      
11 H 0.168      
12 H 0.168      
13 H 0.168      
14 H 0.168      
15 H 0.168      
16 H 0.168      


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 -3.028 3.028
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.995 0.000 0.000
y 0.000 -37.212 0.000
z 0.000 0.000 -42.064
Traceless
 xyz
x 2.643 0.000 0.000
y 0.000 2.318 0.000
z 0.000 0.000 -4.960
Polar
3z2-r2-9.921
x2-y20.217
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.054 0.000 0.000
y 0.000 9.300 0.000
z 0.000 0.000 8.515


<r2> (average value of r2) Å2
<r2> 178.585
(<r2>)1/2 13.364