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

using model chemistry: BLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-269.483708
Energy at 298.15K-269.493401
Nuclear repulsion energy193.267900
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 BLYP/6-31G(2df,p)
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 3650 3630 10.08      
2 A 3584 3565 37.30      
3 A 3042 3026 21.34      
4 A 3034 3018 33.38      
5 A 3005 2989 24.22      
6 A 2967 2951 19.57      
7 A 2923 2907 50.61      
8 A 2812 2796 81.94      
9 A 1465 1457 0.97      
10 A 1451 1443 2.84      
11 A 1446 1439 3.57      
12 A 1401 1394 43.96      
13 A 1375 1367 34.15      
14 A 1361 1354 8.93      
15 A 1339 1332 2.81      
16 A 1320 1312 43.60      
17 A 1267 1260 28.43      
18 A 1189 1182 12.69      
19 A 1123 1117 16.46      
20 A 1061 1055 11.27      
21 A 1034 1028 24.90      
22 A 988 982 100.81      
23 A 908 903 8.18      
24 A 886 881 13.59      
25 A 814 809 12.47      
26 A 547 544 115.68      
27 A 504 502 9.12      
28 A 466 463 6.70      
29 A 351 349 34.39      
30 A 341 339 37.65      
31 A 246 244 2.29      
32 A 211 210 0.26      
33 A 148 147 3.25      

Unscaled Zero Point Vibrational Energy (zpe) 24128.8 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 23996.1 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 BLYP/6-31G(2df,p)
ABC
0.28384 0.11831 0.09148

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.407 1.390 -0.156
H2 0.549 1.593 -0.188
O3 1.957 -0.054 -0.011
H4 2.149 -0.087 0.944
C5 0.713 -0.762 -0.217
H6 0.613 -0.855 -1.310
H7 0.746 -1.778 0.221
C8 -0.471 0.049 0.347
H9 -0.378 0.055 1.459
C10 -1.833 -0.545 -0.032
H11 -1.940 -0.595 -1.127
H12 -1.951 -1.558 0.384
H13 -2.643 0.087 0.361

Atom - Atom Distances (Å)
  O1 H2 O3 H4 C5 H6 H7 C8 H9 C10 H11 H12 H13
O10.97822.77403.15002.42672.72253.39191.43292.09512.40642.68933.37122.6392
H20.97822.17392.58082.36092.69373.40101.92612.43643.20443.44474.06273.5722
O32.77402.17390.97421.44622.03372.11902.45672.76123.82134.08954.20554.6170
H43.15002.58080.97421.96622.83382.31282.69092.58294.12494.61144.39144.8301
C52.42672.36091.44621.96621.10191.10651.54242.16022.56142.80942.84403.5094
H62.72252.69372.03372.83381.10191.79322.17723.07892.77722.57283.15243.7793
H73.39193.40102.11902.31281.10651.79322.19922.48092.86953.22962.71043.8704
C81.43291.92612.45672.69091.54242.17722.19921.11601.53292.17802.18502.1718
H92.09512.43642.76122.58292.16023.07892.48091.11602.16743.08992.49632.5167
C102.40643.20443.82134.12492.56142.77722.86951.53292.16741.10131.10161.0999
H112.68933.44474.08954.61142.80942.57283.22962.17803.08991.10131.79131.7815
H123.37124.06274.20554.39142.84403.15242.71042.18502.49631.10161.79131.7848
H132.63923.57224.61704.83013.50943.77933.87042.17182.51671.09991.78151.7848

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 109.239 O1 C8 H9 109.939
O1 C8 C10 108.417 H2 O1 C8 104.451
O3 C5 H6 105.099 O3 C5 H7 111.520
O3 C5 C8 110.536 H4 O3 C5 107.030
C5 C8 H9 107.626 C5 C8 C10 112.799
H6 C5 H7 108.581 H6 C5 C8 109.725
H7 C5 C8 111.177 C8 C10 H11 110.476
C8 C10 H12 111.014 C8 C10 H13 110.073
H9 C8 C10 108.802 H11 C10 H12 108.816
H11 C10 H13 108.057 H12 C10 H13 108.325
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.390      
2 H 0.260      
3 O -0.371      
4 H 0.268      
5 C -0.085      
6 H 0.103      
7 H 0.077      
8 C 0.138      
9 H 0.030      
10 C -0.347      
11 H 0.108      
12 H 0.095      
13 H 0.114      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.497 -1.471 1.340 2.051
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.371 1.922 2.645
y 1.922 -32.478 0.168
z 2.645 0.168 -29.720
Traceless
 xyz
x -1.272 1.922 2.645
y 1.922 -1.432 0.168
z 2.645 0.168 2.704
Polar
3z2-r25.409
x2-y20.106
xy1.922
xz2.645
yz0.168


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.234 0.224 0.169
y 0.224 6.398 -0.074
z 0.169 -0.074 5.980


<r2> (average value of r2) Å2
<r2> 134.293
(<r2>)1/2 11.588