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

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G*
 hartrees
Energy at 0K-50.246938
Energy at 298.15K 
HF Energy-50.246938
Nuclear repulsion energy132.217654
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 B3LYP/CEP-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 3126 3019 56.79      
2 A1 3056 2951 0.35      
3 A1 3036 2932 42.48      
4 A1 1782 1720 134.28      
5 A1 1498 1447 11.89      
6 A1 1468 1417 15.37      
7 A1 1413 1365 12.72      
8 A1 1345 1299 3.35      
9 A1 1105 1067 2.46      
10 A1 1009 974 3.41      
11 A1 774 747 1.81      
12 A1 396 383 0.38      
13 A1 187 181 0.82      
14 A2 3137 3030 0.00      
15 A2 3060 2955 0.00      
16 A2 1490 1439 0.00      
17 A2 1254 1211 0.00      
18 A2 992 958 0.00      
19 A2 692 668 0.00      
20 A2 198 191 0.00      
21 A2 6 6 0.00      
22 B1 3138 3030 90.62      
23 B1 3071 2966 37.49      
24 B1 1491 1440 14.71      
25 B1 1299 1254 0.98      
26 B1 1122 1083 0.32      
27 B1 803 776 15.38      
28 B1 457 441 0.16      
29 B1 180 173 0.40      
30 B1 64 62 0.32      
31 B2 3125 3018 20.30      
32 B2 3055 2951 65.58      
33 B2 3026 2922 13.41      
34 B2 1499 1447 10.05      
35 B2 1456 1406 2.91      
36 B2 1414 1365 0.72      
37 B2 1386 1338 28.64      
38 B2 1126 1087 62.24      
39 B2 1002 968 10.47      
40 B2 956 924 17.48      
41 B2 608 588 3.89      
42 B2 296 286 11.39      

Unscaled Zero Point Vibrational Energy (zpe) 30797.8 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 29741.4 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 B3LYP/CEP-31G*
ABC
0.28996 0.06338 0.05411

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.305
C2 0.000 0.000 0.074
C3 0.000 1.309 -0.743
C4 0.000 -1.309 -0.743
C5 0.000 2.582 0.130
C6 0.000 -2.582 0.130
H7 0.880 1.287 -1.413
H8 -0.880 1.287 -1.413
H9 -0.880 -1.287 -1.413
H10 0.880 -1.287 -1.413
H11 0.000 3.485 -0.503
H12 -0.888 2.609 0.783
H13 0.888 2.609 0.783
H14 0.000 -3.485 -0.503
H15 0.888 -2.609 0.783
H16 -0.888 -2.609 0.783

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.23042.43032.43032.83622.83623.13353.13353.13353.13353.92632.80522.80523.92632.80522.8052
C21.23041.54321.54322.58222.58222.15502.15502.15502.15503.53302.84582.84583.53302.84582.8458
C32.43031.54322.61821.54333.98751.10661.10662.82212.82212.18962.19232.19234.80064.29764.2976
C42.43031.54322.61823.98751.54332.82212.82211.10661.10664.80064.29764.29762.18962.19232.1923
C52.83622.58221.54333.98755.16332.19842.19844.25734.25731.10361.10211.10216.10015.30655.3065
C62.83622.58223.98751.54335.16334.25734.25732.19842.19846.10015.30655.30651.10361.10211.1021
H73.13352.15501.10662.82212.19844.25731.76053.11862.57422.53703.11392.56324.93774.47264.8094
H83.13352.15501.10662.82212.19844.25731.76052.57423.11862.53702.56323.11394.93774.80944.4726
H93.13352.15502.82211.10664.25732.19843.11862.57421.76054.93774.47264.80942.53703.11392.5632
H103.13352.15502.82211.10664.25732.19842.57423.11861.76054.93774.80944.47262.53702.56323.1139
H113.92633.53302.18964.80061.10366.10012.53702.53704.93774.93771.79131.79136.97106.29186.2918
H122.80522.84582.19234.29761.10215.30653.11392.56324.47264.80941.79131.77586.29185.51245.2185
H132.80522.84582.19234.29761.10215.30652.56323.11394.80944.47261.79131.77586.29185.21855.5124
H143.92633.53304.80062.18966.10011.10364.93774.93772.53702.53706.97106.29186.29181.79131.7913
H152.80522.84584.29762.19235.30651.10214.47264.80943.11392.56326.29185.51245.21851.79131.7758
H162.80522.84584.29762.19235.30651.10214.80944.47262.56323.11396.29185.21855.51241.79131.7758

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 121.976 O1 C2 C4 121.976
C2 C3 C5 113.566 C2 C3 H7 107.693
C2 C3 H8 107.693 C2 C4 C6 113.566
C2 C4 H9 107.693 C2 C4 H10 107.693
C3 C2 C4 116.049 C3 C5 H11 110.527
C3 C5 H12 110.829 C3 C5 H13 110.829
C4 C6 H14 110.527 C4 C6 H15 110.829
C4 C6 H16 110.829 C5 C3 H7 111.045
C5 C3 H8 111.045 C6 C4 H9 111.045
C6 C4 H10 111.045 H7 C3 H8 105.391
H9 C4 H10 105.391 H11 C5 H12 108.608
H11 C5 H13 108.608 H12 C5 H13 107.339
H14 C6 H15 108.608 H14 C6 H16 108.608
H15 C6 H16 107.339
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.078      
2 C -0.244      
3 C -0.144      
4 C -0.144      
5 C -0.429      
6 C -0.429      
7 H 0.128      
8 H 0.128      
9 H 0.128      
10 H 0.128      
11 H 0.169      
12 H 0.155      
13 H 0.155      
14 H 0.169      
15 H 0.155      
16 H 0.155      


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 -2.820 2.820
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.261 0.000 0.000
y 0.000 -36.480 0.000
z 0.000 0.000 -40.804
Traceless
 xyz
x 2.381 0.000 0.000
y 0.000 2.052 0.000
z 0.000 0.000 -4.434
Polar
3z2-r2-8.867
x2-y20.219
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.520 0.000 0.000
y 0.000 9.989 0.000
z 0.000 0.000 8.404


<r2> (average value of r2) Å2
<r2> 180.809
(<r2>)1/2 13.447