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

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-269.492528
Energy at 298.15K-269.502427
Nuclear repulsion energy195.757856
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 mPW1PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3806 3609 21.02      
2 A 3743 3549 49.97      
3 A 3174 3010 17.96      
4 A 3163 2999 32.22      
5 A 3143 2981 23.10      
6 A 3083 2924 19.30      
7 A 3057 2899 46.03      
8 A 2954 2801 84.66      
9 A 1535 1456 2.03      
10 A 1526 1447 3.02      
11 A 1519 1440 6.25      
12 A 1480 1403 32.63      
13 A 1441 1366 42.20      
14 A 1421 1347 15.65      
15 A 1409 1336 6.64      
16 A 1378 1307 53.22      
17 A 1320 1252 45.47      
18 A 1246 1181 18.08      
19 A 1209 1146 25.87      
20 A 1118 1060 33.37      
21 A 1108 1051 9.19      
22 A 1079 1024 113.89      
23 A 961 911 2.98      
24 A 941 892 16.30      
25 A 869 824 11.62      
26 A 571 541 156.70      
27 A 528 501 21.58      
28 A 486 460 6.09      
29 A 366 348 42.44      
30 A 350 332 51.39      
31 A 252 239 2.89      
32 A 230 218 0.34      
33 A 158 149 3.99      

Unscaled Zero Point Vibrational Energy (zpe) 25310.5 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 24002.0 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 mPW1PW91/6-31G*
ABC
0.29126 0.12154 0.09409

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.402 1.369 -0.156
H2 0.544 1.585 -0.182
O3 1.927 -0.055 -0.004
H4 2.134 -0.117 0.938
C5 0.705 -0.746 -0.223
H6 0.601 -0.821 -1.309
H7 0.734 -1.762 0.193
C8 -0.463 0.051 0.342
H9 -0.366 0.059 1.445
C10 -1.808 -0.541 -0.026
H11 -1.916 -0.587 -1.114
H12 -1.923 -1.548 0.384
H13 -2.612 0.086 0.367

Atom - Atom Distances (Å)
  O1 H2 O3 H4 C5 H6 H7 C8 H9 C10 H11 H12 H13
O10.97052.73423.13652.38842.67163.34951.41022.06892.37542.65313.33452.6090
H20.97052.15222.58432.33642.65783.37301.90782.40863.17393.41154.02763.5369
O32.73422.15220.96631.42102.01252.09222.41772.71503.76684.03584.14774.5567
H43.13652.58430.96631.94552.80982.28482.66992.55704.08024.56454.33704.7848
C52.38842.33641.42101.94551.09351.09851.52352.14022.52942.77312.81423.4707
H62.67162.65782.01252.80981.09351.77722.15033.04952.74432.53613.12563.7364
H73.34953.37302.09222.28481.09851.77722.17852.46952.82903.18002.67243.8268
C81.41021.90782.41772.66991.52352.15032.17851.10711.51502.15402.16602.1495
H92.06892.40862.71502.55702.14023.04952.46951.10712.14593.06112.47652.4919
C102.37543.17393.76684.08022.52942.74432.82901.51502.14591.09401.09431.0925
H112.65313.41154.03584.56452.77312.53613.18002.15403.06111.09401.78041.7691
H123.33454.02764.14774.33702.81423.12562.67242.16602.47651.09431.78041.7738
H132.60903.53694.55674.78483.47073.73643.82682.14952.49191.09251.76911.7738

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 108.940 O1 C8 H9 109.960
O1 C8 C10 108.536 H2 O1 C8 105.013
O3 C5 H6 105.588 O3 C5 H7 111.640
O3 C5 C8 110.336 H4 O3 C5 107.641
C5 C8 H9 107.841 C5 C8 C10 112.696
H6 C5 H7 108.336 H6 C5 C8 109.402
H7 C5 C8 111.337 C8 C10 H11 110.258
C8 C10 H12 111.194 C8 C10 H13 109.985
H9 C8 C10 108.851 H11 C10 H12 108.896
H11 C10 H13 108.017 H12 C10 H13 108.411
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.645      
2 H 0.416      
3 O -0.636      
4 H 0.411      
5 C -0.113      
6 H 0.186      
7 H 0.154      
8 C 0.089      
9 H 0.128      
10 C -0.526      
11 H 0.181      
12 H 0.164      
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
  0.555 -1.702 1.549 2.368
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.352 2.106 2.977
y 2.106 -32.189 0.155
z 2.977 0.155 -29.320
Traceless
 xyz
x -1.597 2.106 2.977
y 2.106 -1.353 0.155
z 2.977 0.155 2.951
Polar
3z2-r25.901
x2-y2-0.163
xy2.106
xz2.977
yz0.155


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


<r2> (average value of r2) Å2
<r2> 131.179
(<r2>)1/2 11.453