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

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-271.743548
Energy at 298.15K 
HF Energy-271.743548
Nuclear repulsion energy239.201241
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 B3PW91/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3126 3010 38.14      
2 A1 3055 2941 2.38      
3 A1 3032 2919 31.47      
4 A1 1812 1744 125.43      
5 A1 1512 1456 9.35      
6 A1 1472 1418 21.21      
7 A1 1424 1371 14.70      
8 A1 1359 1309 6.31      
9 A1 1123 1081 1.94      
10 A1 1031 992 2.44      
11 A1 789 759 2.14      
12 A1 408 393 0.55      
13 A1 193 185 0.57      
14 A2 3133 3016 0.00      
15 A2 3048 2935 0.00      
16 A2 1505 1449 0.00      
17 A2 1269 1221 0.00      
18 A2 1007 969 0.00      
19 A2 709 682 0.00      
20 A2 200 193 0.00      
21 A2 5 4 0.00      
22 B1 3134 3017 54.42      
23 B1 3060 2946 22.50      
24 B1 1505 1449 19.05      
25 B1 1319 1269 0.54      
26 B1 1142 1100 0.15      
27 B1 826 795 11.98      
28 B1 468 450 0.18      
29 B1 176 170 0.20      
30 B1 68 66 0.20      
31 B2 3126 3009 15.72      
32 B2 3055 2941 50.94      
33 B2 3022 2909 14.50      
34 B2 1512 1456 13.56      
35 B2 1458 1404 3.75      
36 B2 1423 1370 1.62      
37 B2 1395 1343 43.70      
38 B2 1144 1101 59.81      
39 B2 1013 975 11.41      
40 B2 978 942 21.81      
41 B2 627 604 3.05      
42 B2 306 295 13.11      

Unscaled Zero Point Vibrational Energy (zpe) 30984.8 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 29829.1 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 B3PW91/6-311G*
ABC
0.29921 0.06516 0.05569

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.281
C2 0.000 0.000 0.071
C3 0.000 1.291 -0.730
C4 0.000 -1.291 -0.730
C5 0.000 2.544 0.130
C6 0.000 -2.544 0.130
H7 0.870 1.273 -1.401
H8 -0.870 1.273 -1.401
H9 -0.870 -1.273 -1.401
H10 0.870 -1.273 -1.401
H11 0.000 3.444 -0.491
H12 -0.878 2.576 0.778
H13 0.878 2.576 0.778
H14 0.000 -3.444 -0.491
H15 0.878 -2.576 0.778
H16 -0.878 -2.576 0.778

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.20902.38952.38952.79222.79223.09283.09283.09283.09283.87272.76772.76773.87272.76772.7677
C21.20901.51991.51992.54482.54482.13162.13162.13162.13163.48932.81202.81203.48932.81202.8120
C32.38951.51992.58271.51953.93071.09841.09842.78942.78942.16542.16722.16724.74094.24314.2431
C42.38951.51992.58273.93071.51952.78942.78941.09841.09844.74094.24314.24312.16542.16722.1672
C52.79222.54481.51953.93075.08822.17152.17154.20334.20331.09321.09211.09216.01985.23535.2353
C62.79222.54483.93071.51955.08824.20334.20332.17152.17156.01985.23535.23531.09321.09211.0921
H73.09282.13161.09842.78942.17154.20331.73923.08302.54562.50913.08252.53914.88134.42304.7558
H83.09282.13161.09842.78942.17154.20331.73922.54563.08302.50912.53913.08254.88134.75584.4230
H93.09282.13162.78941.09844.20332.17153.08302.54561.73924.88134.42304.75582.50913.08252.5391
H103.09282.13162.78941.09844.20332.17152.54563.08301.73924.88134.75584.42302.50912.53913.0825
H113.87273.48932.16544.74091.09326.01982.50912.50914.88134.88131.77081.77086.88726.21456.2145
H122.76772.81202.16724.24311.09215.23533.08252.53914.42304.75581.77081.75636.21455.44345.1523
H132.76772.81202.16724.24311.09215.23532.53913.08254.75584.42301.77081.75636.21455.15235.4434
H143.87273.48934.74092.16546.01981.09324.88134.88132.50912.50916.88726.21456.21451.77081.7708
H152.76772.81204.24312.16725.23531.09214.42304.75583.08252.53916.21455.44345.15231.77081.7563
H162.76772.81204.24312.16725.23531.09214.75584.42302.53913.08256.21455.15235.44341.77081.7563

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 121.826 O1 C2 C4 121.826
C2 C3 C5 113.706 C2 C3 H7 107.919
C2 C3 H8 107.919 C2 C4 C6 113.706
C2 C4 H9 107.919 C2 C4 H10 107.919
C3 C2 C4 116.348 C3 C5 H11 110.900
C3 C5 H12 111.116 C3 C5 H13 111.116
C4 C6 H14 110.900 C4 C6 H15 111.116
C4 C6 H16 111.116 C5 C3 H7 111.071
C5 C3 H8 111.071 C6 C4 H9 111.071
C6 C4 H10 111.071 H7 C3 H8 104.692
H9 C4 H10 104.692 H11 C5 H12 108.256
H11 C5 H13 108.256 H12 C5 H13 107.048
H14 C6 H15 108.256 H14 C6 H16 108.256
H15 C6 H16 107.048
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.310      
2 C 0.340      
3 C -0.529      
4 C -0.529      
5 C -0.646      
6 C -0.646      
7 H 0.238      
8 H 0.238      
9 H 0.238      
10 H 0.238      
11 H 0.219      
12 H 0.233      
13 H 0.233      
14 H 0.219      
15 H 0.233      
16 H 0.233      


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 -2.658 2.658
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.941 0.000 0.000
y 0.000 -37.090 0.000
z 0.000 0.000 -41.123
Traceless
 xyz
x 2.165 0.000 0.000
y 0.000 1.942 0.000
z 0.000 0.000 -4.108
Polar
3z2-r2-8.215
x2-y20.149
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.041 0.000 0.000
y 0.000 10.050 0.000
z 0.000 0.000 8.734


<r2> (average value of r2) Å2
<r2> 215.006
(<r2>)1/2 14.663