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

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-271.684421
Energy at 298.15K 
HF Energy-271.684421
Nuclear repulsion energy238.818508
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 B3PW91/6-31G*
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 3151 3015 30.44      
2 A1 3075 2942 2.47      
3 A1 3044 2913 26.88      
4 A1 1827 1748 111.07      
5 A1 1523 1457 7.92      
6 A1 1487 1422 14.62      
7 A1 1437 1375 12.22      
8 A1 1368 1309 6.44      
9 A1 1129 1080 1.82      
10 A1 1035 990 2.47      
11 A1 792 757 2.00      
12 A1 410 392 0.39      
13 A1 193 185 0.58      
14 A2 3159 3022 0.00      
15 A2 3067 2934 0.00      
16 A2 1518 1452 0.00      
17 A2 1273 1218 0.00      
18 A2 1009 965 0.00      
19 A2 716 685 0.00      
20 A2 203 194 0.00      
21 A2 29 28 0.00      
22 B1 3159 3022 41.23      
23 B1 3078 2944 21.12      
24 B1 1518 1452 14.00      
25 B1 1317 1260 0.75      
26 B1 1148 1098 0.12      
27 B1 828 792 13.06      
28 B1 467 447 0.13      
29 B1 179 171 0.26      
30 B1 68 65 0.16      
31 B2 3151 3014 13.97      
32 B2 3074 2941 43.64      
33 B2 3035 2904 11.96      
34 B2 1523 1457 11.13      
35 B2 1474 1410 3.16      
36 B2 1436 1374 0.49      
37 B2 1405 1344 36.62      
38 B2 1150 1100 64.81      
39 B2 1021 977 11.07      
40 B2 984 941 18.96      
41 B2 627 600 3.56      
42 B2 307 294 13.22      

Unscaled Zero Point Vibrational Energy (zpe) 31194.9 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 29844.2 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 B3PW91/6-31G*
ABC
0.29758 0.06508 0.05558

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.283
C2 0.000 0.000 0.067
C3 0.000 1.294 -0.733
C4 0.000 -1.294 -0.733
C5 0.000 2.545 0.133
C6 0.000 -2.545 0.133
H7 0.872 1.277 -1.404
H8 -0.872 1.277 -1.404
H9 -0.872 -1.277 -1.404
H10 0.872 -1.277 -1.404
H11 0.000 3.447 -0.488
H12 -0.881 2.571 0.782
H13 0.881 2.571 0.782
H14 0.000 -3.447 -0.488
H15 0.881 -2.571 0.782
H16 -0.881 -2.571 0.782

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.21532.39562.39562.79292.79293.09973.09973.09973.09973.87542.76372.76373.87542.76372.7637
C21.21531.52171.52172.54612.54612.13432.13432.13432.13433.49172.81022.81023.49172.81022.8102
C32.39561.52172.58791.52203.93581.10021.10022.79612.79612.16732.16852.16854.74764.24394.2439
C42.39561.52172.58793.93581.52202.79612.79611.10021.10024.74764.24394.24392.16732.16852.1685
C52.79292.54611.52203.93585.09052.17522.17524.21074.21071.09501.09401.09406.02465.23215.2321
C62.79292.54613.93581.52205.09054.21074.21072.17522.17526.02465.23215.23211.09501.09401.0940
H73.09972.13431.10022.79612.17524.21071.74443.09242.55342.51223.08612.54014.89044.42534.7597
H83.09972.13431.10022.79612.17524.21071.74442.55343.09242.51222.54013.08614.89044.75974.4253
H93.09972.13432.79611.10024.21072.17523.09242.55341.74444.89044.42534.75972.51223.08612.5401
H103.09972.13432.79611.10024.21072.17522.55343.09241.74444.89044.75974.42532.51222.54013.0861
H113.87543.49172.16734.74761.09506.02462.51222.51224.89044.89041.77601.77606.89466.21376.2137
H122.76372.81022.16854.24391.09405.23213.08612.54014.42534.75971.77601.76126.21375.43585.1426
H132.76372.81022.16854.24391.09405.23212.54013.08614.75974.42531.77601.76126.21375.14265.4358
H143.87543.49174.74762.16736.02461.09504.89044.89042.51222.51226.89466.21376.21371.77601.7760
H152.76372.81024.24392.16855.23211.09404.42534.75973.08612.54016.21375.43585.14261.77601.7612
H162.76372.81024.24392.16855.23211.09404.75974.42532.54013.08616.21375.14265.43581.77601.7612

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 121.753 O1 C2 C4 121.753
C2 C3 C5 113.549 C2 C3 H7 107.899
C2 C3 H8 107.899 C2 C4 C6 113.549
C2 C4 H9 107.899 C2 C4 H10 107.899
C3 C2 C4 116.494 C3 C5 H11 110.767
C3 C5 H12 110.920 C3 C5 H13 110.920
C4 C6 H14 110.767 C4 C6 H15 110.920
C4 C6 H16 110.920 C5 C3 H7 111.084
C5 C3 H8 111.084 C6 C4 H9 111.084
C6 C4 H10 111.084 H7 C3 H8 104.890
H9 C4 H10 104.890 H11 C5 H12 108.455
H11 C5 H13 108.455 H12 C5 H13 107.203
H14 C6 H15 108.455 H14 C6 H16 108.455
H15 C6 H16 107.203
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.442      
2 C 0.461      
3 C -0.408      
4 C -0.408      
5 C -0.502      
6 C -0.502      
7 H 0.184      
8 H 0.184      
9 H 0.184      
10 H 0.184      
11 H 0.164      
12 H 0.185      
13 H 0.185      
14 H 0.164      
15 H 0.185      
16 H 0.185      


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 -2.599 2.599
CHELPG        
AIM        
ESP 0.001 0.000 -2.573 2.573


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.432 0.000 0.000
y 0.000 -36.365 0.000
z 0.000 0.000 -40.380
Traceless
 xyz
x 1.941 0.000 0.000
y 0.000 2.041 0.000
z 0.000 0.000 -3.982
Polar
3z2-r2-7.963
x2-y2-0.067
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.660 0.000 0.000
y 0.000 9.418 0.000
z 0.000 0.000 8.249


<r2> (average value of r2) Å2
<r2> 214.932
(<r2>)1/2 14.661