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All results from a given calculation for C3H8O2 (Propylene glycol)

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 C1 1A
Energy calculated at B3LYP/CEP-31G*
 hartrees
Energy at 0K-53.700593
Energy at 298.15K-53.709551
Nuclear repulsion energy111.581826
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 A 3794 3664 15.91      
2 A 3782 3652 13.00      
3 A 3127 3020 35.01      
4 A 3105 2998 82.44      
5 A 3068 2962 67.09      
6 A 3040 2935 12.00      
7 A 3039 2935 25.00      
8 A 3002 2899 70.21      
9 A 1503 1452 4.28      
10 A 1496 1445 6.01      
11 A 1490 1439 5.88      
12 A 1437 1388 48.59      
13 A 1416 1368 44.52      
14 A 1406 1358 12.26      
15 A 1364 1317 19.65      
16 A 1320 1275 3.06      
17 A 1298 1253 16.16      
18 A 1196 1155 10.35      
19 A 1142 1103 56.29      
20 A 1100 1062 13.42      
21 A 1077 1040 50.73      
22 A 1060 1024 129.37      
23 A 922 890 6.80      
24 A 914 882 1.12      
25 A 823 795 24.12      
26 A 507 489 7.84      
27 A 449 434 2.02      
28 A 360 348 12.25      
29 A 295 285 42.51      
30 A 227 219 1.28      
31 A 219 212 4.98      
32 A 103 99 10.30      
33 A 56 54 196.85      

Unscaled Zero Point Vibrational Energy (zpe) 24566.4 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 23723.8 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
0.26814 0.11719 0.08952

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.406 1.450 0.057
H2 0.183 1.464 1.006
O3 -2.012 -0.099 0.025
H4 -2.013 0.328 -0.850
C5 -0.742 -0.746 0.193
H6 -0.625 -0.894 1.283
H7 -0.737 -1.749 -0.283
C8 0.455 0.069 -0.358
H9 0.377 0.115 -1.461
C10 1.797 -0.596 0.026
H11 1.912 -0.639 1.125
H12 1.862 -1.627 -0.367
H13 2.636 -0.012 -0.386

Atom - Atom Distances (Å)
  O1 H2 O3 H4 C5 H6 H7 C8 H9 C10 H11 H12 H13
O10.97492.87142.81572.48092.83923.41391.44232.02102.47422.78813.43062.7031
H20.97492.86733.09092.52962.50833.58211.96952.81792.79472.72563.77643.1833
O32.87142.86730.97421.43482.03412.10712.50172.82113.84124.11084.18254.6670
H42.81573.09090.97421.96362.82332.50252.52922.47524.01694.49904.36684.6844
C52.48092.52961.43481.96361.10671.11041.54872.17392.54892.81502.80523.5049
H62.83922.50832.03412.82331.10671.78762.18793.09062.74542.55503.07303.7682
H73.41393.58212.10712.50251.11041.78762.17562.47082.80183.19932.60353.7963
C81.44231.96952.50172.52921.54872.18792.17561.10671.54662.19652.20432.1833
H92.02102.81792.82112.47522.17393.09062.47081.10672.17563.10052.53782.5057
C102.47422.79473.84124.01692.54892.74542.80181.54662.17561.10611.10571.1020
H112.78812.72564.11084.49902.81502.55503.19932.19653.10051.10611.79011.7886
H123.43063.77644.18254.36682.80523.07302.60352.20432.53781.10571.79011.7920
H132.70313.18334.66704.68443.50493.76823.79632.18332.50571.10201.78861.7920

picture of Propylene glycol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C8 C5 112.038 O1 C8 H9 104.137
O1 C8 C10 111.705 H2 O1 C8 107.557
O3 C5 H6 105.599 O3 C5 H7 111.126
O3 C5 C8 113.912 H4 O3 C5 107.654
C5 C8 H9 108.766 C5 C8 C10 110.865
H6 C5 H7 107.467 H6 C5 C8 109.839
H7 C5 C8 108.683 C8 C10 H11 110.705
C8 C10 H12 111.344 C8 C10 H13 109.904
H9 C8 C10 109.044 H11 C10 H12 108.073
H11 C10 H13 108.194 H12 C10 H13 108.528
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.451      
2 H 0.360      
3 O -0.424      
4 H 0.373      
5 C -0.268      
6 H 0.139      
7 H 0.137      
8 C 0.008      
9 H 0.142      
10 C -0.477      
11 H 0.131      
12 H 0.137      
13 H 0.193      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.201 -1.395 -0.190 1.850
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.008 -2.151 2.868
y -2.151 -33.649 1.580
z 2.868 1.580 -27.096
Traceless
 xyz
x -5.635 -2.151 2.868
y -2.151 -2.097 1.580
z 2.868 1.580 7.732
Polar
3z2-r215.464
x2-y2-2.358
xy-2.151
xz2.868
yz1.580


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.436 -0.299 -0.015
y -0.299 5.848 -0.079
z -0.015 -0.079 5.632


<r2> (average value of r2) Å2
<r2> 113.939
(<r2>)1/2 10.674