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

using model chemistry: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-269.457605
Energy at 298.15K-269.467473
Nuclear repulsion energy195.997153
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 B1B95/6-31G**
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 3853 3679 21.03      
2 A 3786 3615 52.02      
3 A 3165 3022 17.11      
4 A 3154 3012 27.86      
5 A 3123 2982 26.24      
6 A 3070 2931 17.53      
7 A 3039 2902 45.91      
8 A 2937 2805 81.56      
9 A 1509 1441 1.65      
10 A 1500 1432 2.77      
11 A 1493 1425 6.62      
12 A 1457 1391 28.83      
13 A 1416 1352 41.63      
14 A 1396 1333 12.02      
15 A 1388 1325 8.37      
16 A 1357 1296 52.58      
17 A 1300 1241 45.72      
18 A 1227 1172 17.41      
19 A 1198 1144 28.52      
20 A 1109 1059 30.32      
21 A 1094 1044 11.87      
22 A 1069 1020 113.72      
23 A 949 906 3.49      
24 A 928 886 16.42      
25 A 861 822 11.40      
26 A 565 540 147.54      
27 A 522 499 21.00      
28 A 476 454 6.02      
29 A 361 345 39.75      
30 A 346 331 51.66      
31 A 250 239 2.63      
32 A 225 215 0.32      
33 A 161 154 4.17      

Unscaled Zero Point Vibrational Energy (zpe) 25142.2 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 24005.8 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 B1B95/6-31G**
ABC
0.29189 0.12191 0.09437

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.397 1.368 -0.156
H2 0.547 1.577 -0.184
O3 1.924 -0.056 -0.004
H4 2.129 -0.115 0.935
C5 0.702 -0.747 -0.223
H6 0.594 -0.823 -1.308
H7 0.728 -1.763 0.192
C8 -0.463 0.052 0.344
H9 -0.365 0.056 1.446
C10 -1.807 -0.537 -0.027
H11 -1.913 -0.578 -1.114
H12 -1.923 -1.545 0.379
H13 -2.610 0.088 0.367

Atom - Atom Distances (Å)
  O1 H2 O3 H4 C5 H6 H7 C8 H9 C10 H11 H12 H13
O10.96782.72713.12632.38492.66623.34551.40962.07052.37352.64643.33172.6095
H20.96782.14302.57262.32962.65033.36611.90422.40863.16813.40044.02073.5342
O32.72712.14300.96351.42062.01432.09372.41442.71223.76194.02794.14284.5514
H43.12632.57260.96351.94342.80912.28722.66422.55234.07424.55534.33294.7776
C52.38492.32961.42061.94341.09331.09771.52202.13782.52582.76782.80903.4666
H62.66622.65032.01432.80911.09331.77562.14673.04582.73632.52593.11483.7283
H73.34553.36612.09372.28721.09771.77562.17602.46562.82483.17532.66673.8211
C81.40961.90422.41442.66421.52202.14672.17601.10671.51332.14982.16372.1475
H92.07052.40862.71222.55232.13783.04582.46561.10672.14453.05742.47552.4905
C102.37353.16813.76194.07422.52582.73632.82481.51332.14451.09261.09281.0910
H112.64643.40044.02794.55532.76782.52593.17532.14983.05741.09261.77821.7671
H123.33174.02074.14284.33292.80903.11482.66672.16372.47551.09281.77821.7715
H132.60953.53424.55144.77763.46663.72833.82112.14752.49051.09101.76711.7715

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 108.819 O1 C8 H9 110.160
O1 C8 C10 108.540 H2 O1 C8 104.916
O3 C5 H6 105.766 O3 C5 H7 111.844
O3 C5 C8 110.220 H4 O3 C5 107.661
C5 C8 H9 107.788 C5 C8 C10 112.639
H6 C5 H7 108.277 H6 C5 C8 109.241
H7 C5 C8 111.294 C8 C10 H11 110.124
C8 C10 H12 111.219 C8 C10 H13 110.039
H9 C8 C10 108.887 H11 C10 H12 108.910
H11 C10 H13 108.047 H12 C10 H13 108.425
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.549      
2 H 0.320      
3 O -0.551      
4 H 0.319      
5 C 0.000      
6 H 0.137      
7 H 0.104      
8 C 0.115      
9 H 0.081      
10 C -0.360      
11 H 0.130      
12 H 0.114      
13 H 0.140      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.543 -1.667 1.505 2.311
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.157 2.060 2.909
y 2.060 -32.153 0.161
z 2.909 0.161 -29.358
Traceless
 xyz
x -1.401 2.060 2.909
y 2.060 -1.396 0.161
z 2.909 0.161 2.797
Polar
3z2-r25.595
x2-y2-0.004
xy2.060
xz2.909
yz0.161


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.527 0.228 0.166
y 0.228 5.851 -0.100
z 0.166 -0.100 5.593


<r2> (average value of r2) Å2
<r2> 130.812
(<r2>)1/2 11.437