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

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-271.639400
Energy at 298.15K 
HF Energy-271.639400
Nuclear repulsion energy239.919895
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 B1B95/6-31G*
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 3176 3015 27.58      
2 A1 3096 2939 2.89      
3 A1 3068 2912 25.42      
4 A1 1850 1756 112.65      
5 A1 1524 1447 7.87      
6 A1 1491 1415 13.95      
7 A1 1438 1365 11.93      
8 A1 1368 1299 5.72      
9 A1 1132 1074 1.25      
10 A1 1036 983 2.87      
11 A1 797 757 1.86      
12 A1 410 389 0.35      
13 A1 184 174 0.55      
14 A2 3181 3020 0.00      
15 A2 3093 2936 0.00      
16 A2 1517 1440 0.00      
17 A2 1274 1209 0.00      
18 A2 1007 956 0.00      
19 A2 716 680 0.00      
20 A2 177 168 0.00      
21 A2 28i 27i 0.00      
22 B1 3181 3020 39.15      
23 B1 3102 2945 19.61      
24 B1 1517 1440 14.19      
25 B1 1315 1248 0.89      
26 B1 1150 1092 0.10      
27 B1 825 784 12.38      
28 B1 466 443 0.06      
29 B1 142 135 0.30      
30 B1 68 64 0.21      
31 B2 3176 3015 15.24      
32 B2 3096 2939 40.63      
33 B2 3060 2905 11.17      
34 B2 1524 1447 12.00      
35 B2 1478 1403 3.12      
36 B2 1437 1364 0.01      
37 B2 1414 1342 40.06      
38 B2 1154 1096 64.24      
39 B2 1026 974 13.93      
40 B2 991 940 13.03      
41 B2 631 599 4.43      
42 B2 300 285 14.13      

Unscaled Zero Point Vibrational Energy (zpe) 31278.3 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 29692.5 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 B1B95/6-31G*
ABC
0.29982 0.06591 0.05625

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.268
C2 0.000 0.000 0.056
C3 0.000 1.291 -0.737
C4 0.000 -1.291 -0.737
C5 0.000 2.526 0.144
C6 0.000 -2.526 0.144
H7 0.870 1.279 -1.404
H8 -0.870 1.279 -1.404
H9 -0.870 -1.279 -1.404
H10 0.870 -1.279 -1.404
H11 0.000 3.436 -0.460
H12 -0.878 2.540 0.792
H13 0.878 2.540 0.792
H14 0.000 -3.436 -0.460
H15 0.878 -2.540 0.792
H16 -0.878 -2.540 0.792

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.21192.38482.38482.76522.76523.08803.08803.08803.08803.84622.72902.72903.84622.72902.7290
C21.21191.51551.51552.52802.52802.12752.12752.12752.12753.47472.78602.78603.47472.78602.7860
C32.38481.51552.58291.51693.91821.09711.09712.79442.79442.16242.16002.16004.73564.21724.2172
C42.38481.51552.58293.91821.51692.79442.79441.09711.09714.73564.21724.21722.16242.16002.1600
C52.76522.52801.51693.91825.05292.17092.17094.19934.19931.09191.09121.09125.99315.18225.1822
C62.76522.52803.91821.51695.05294.19934.19932.17092.17095.99315.18225.18221.09191.09121.0912
H73.08802.12751.09712.79442.17094.19931.74093.09362.55732.51083.07752.53264.88654.40494.7392
H83.08802.12751.09712.79442.17094.19931.74092.55733.09362.51082.53263.07754.88654.73924.4049
H93.08802.12752.79441.09714.19932.17093.09362.55731.74094.88654.40494.73922.51083.07752.5326
H103.08802.12752.79441.09714.19932.17092.55733.09361.74094.88654.73924.40492.51082.53263.0775
H113.84623.47472.16244.73561.09195.99312.51082.51084.88654.88651.77251.77256.87226.16826.1682
H122.72902.78602.16004.21721.09125.18223.07752.53264.40494.73921.77251.75606.16825.37425.0792
H132.72902.78602.16004.21721.09125.18222.53263.07754.73924.40491.77251.75606.16825.07925.3742
H143.84623.47474.73562.16245.99311.09194.88654.88652.51082.51086.87226.16826.16821.77251.7725
H152.72902.78604.21722.16005.18221.09124.40494.73923.07752.53266.16825.37425.07921.77251.7560
H162.72902.78604.21722.16005.18221.09124.73924.40492.53263.07756.16825.07925.37421.77251.7560

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 121.551 O1 C2 C4 121.551
C2 C3 C5 112.952 C2 C3 H7 107.970
C2 C3 H8 107.970 C2 C4 C6 112.952
C2 C4 H9 107.970 C2 C4 H10 107.970
C3 C2 C4 116.897 C3 C5 H11 110.917
C3 C5 H12 110.764 C3 C5 H13 110.764
C4 C6 H14 110.917 C4 C6 H15 110.764
C4 C6 H16 110.764 C5 C3 H7 111.280
C5 C3 H8 111.280 C6 C4 H9 111.280
C6 C4 H10 111.280 H7 C3 H8 105.002
H9 C4 H10 105.002 H11 C5 H12 108.565
H11 C5 H13 108.565 H12 C5 H13 107.147
H14 C6 H15 108.565 H14 C6 H16 108.565
H15 C6 H16 107.147
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.440      
2 C 0.449      
3 C -0.397      
4 C -0.397      
5 C -0.484      
6 C -0.484      
7 H 0.179      
8 H 0.179      
9 H 0.179      
10 H 0.179      
11 H 0.159      
12 H 0.180      
13 H 0.180      
14 H 0.159      
15 H 0.180      
16 H 0.180      


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 -2.581 2.581
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.430 0.000 0.000
y 0.000 -36.418 0.000
z 0.000 0.000 -40.334
Traceless
 xyz
x 1.946 0.000 0.000
y 0.000 1.964 0.000
z 0.000 0.000 -3.910
Polar
3z2-r2-7.820
x2-y2-0.012
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.617 0.000 0.000
y 0.000 9.326 0.000
z 0.000 0.000 8.189


<r2> (average value of r2) Å2
<r2> 212.708
(<r2>)1/2 14.585