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

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G*
 hartrees
Energy at 0K-269.254924
Energy at 298.15K-269.264687
HF Energy-269.254924
Nuclear repulsion energy196.005052
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 PBE1PBE/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 3844 3653 34.33      
2 A 3763 3576 45.41      
3 A 3171 3013 16.66      
4 A 3160 3003 28.53      
5 A 3079 2926 16.69      
6 A 3075 2922 66.68      
7 A 3026 2876 49.26      
8 A 3000 2851 42.45      
9 A 1537 1460 5.33      
10 A 1530 1454 2.03      
11 A 1515 1440 8.39      
12 A 1485 1411 24.15      
13 A 1459 1386 6.12      
14 A 1417 1346 4.10      
15 A 1404 1334 55.16      
16 A 1314 1249 63.26      
17 A 1283 1219 6.80      
18 A 1273 1210 35.28      
19 A 1194 1135 37.55      
20 A 1133 1077 25.95      
21 A 1124 1068 48.49      
22 A 1090 1036 79.32      
23 A 960 912 6.32      
24 A 959 912 6.65      
25 A 863 820 7.37      
26 A 534 507 41.26      
27 A 504 479 105.79      
28 A 479 455 13.83      
29 A 366 348 10.32      
30 A 271 258 100.84      
31 A 256 243 16.02      
32 A 229 218 0.59      
33 A 157 149 3.45      

Unscaled Zero Point Vibrational Energy (zpe) 25225.5 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 23971.8 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 PBE1PBE/6-31G*
ABC
0.29222 0.12295 0.09455

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.799 -0.555 0.041
C2 0.467 0.055 -0.343
C3 -0.709 -0.745 0.192
O4 -1.875 -0.015 -0.157
O5 0.415 1.364 0.180
H6 -0.513 1.632 0.087
H7 -2.613 -0.346 0.369
H8 -0.609 -0.835 1.285
H9 -0.720 -1.755 -0.244
H10 0.378 0.080 -1.443
H11 1.893 -0.609 1.132
H12 1.908 -1.562 -0.375
H13 2.615 0.066 -0.338

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11 H12 H13
C11.51432.51973.71882.37043.18284.42912.72412.80552.15071.09551.09541.0938
C21.51431.51952.35071.41071.90583.18672.14412.16751.10452.15592.16582.1483
C32.51971.51951.41892.38972.38681.95331.10081.10092.12972.77012.79933.4628
O43.71882.35071.41892.69442.15110.96432.08622.09012.59654.02664.09254.4950
O52.37041.41072.38972.69440.97013.48272.66543.34682.07012.64313.33182.6071
H63.18281.90582.38682.15110.97012.89842.74363.40972.35493.45014.03423.5243
H74.42913.18671.95330.96433.48272.89842.25722.43783.52314.57814.73995.2921
H82.72412.14411.10082.08622.66542.74362.25721.78793.04162.51703.10073.7203
H92.80552.16751.10092.09013.34683.40972.43781.78792.45213.16852.63843.8021
H102.15071.10452.12972.59652.07012.35493.52313.04162.45213.06582.48512.4953
H111.09552.15592.77014.02662.64313.45014.57812.51703.16853.06581.78291.7711
H121.09542.16582.79934.09253.33184.03424.73993.10072.63842.48511.78291.7760
H131.09382.14833.46284.49502.60713.52435.29213.72033.80212.49531.77111.7760

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 52.171 O1 C8 H9 73.623
O1 C8 C10 43.368 H2 O1 C8 51.668
O3 C5 H6 78.113 O3 C5 H7 32.589
O3 C5 C8 24.377 H4 O3 C5 86.076
C5 C8 H9 95.419 C5 C8 C10 41.890
H6 C5 H7 46.293 H6 C5 C8 84.247
H7 C5 C8 40.400 C8 C10 H11 48.675
C8 C10 H12 67.389 C8 C10 H13 83.809
H9 C8 C10 53.726 H11 C10 H12 35.558
H11 C10 H13 35.290 H12 C10 H13 41.782
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.530      
2 C 0.093      
3 C -0.102      
4 O -0.649      
5 O -0.646      
6 H 0.420      
7 H 0.419      
8 H 0.155      
9 H 0.150      
10 H 0.153      
11 H 0.178      
12 H 0.166      
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
  -1.501 -1.966 0.621 2.550
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.529 -0.735 -3.420
y -0.735 -31.806 -0.873
z -3.420 -0.873 -31.339
Traceless
 xyz
x 4.043 -0.735 -3.420
y -0.735 -2.372 -0.873
z -3.420 -0.873 -1.671
Polar
3z2-r2-3.343
x2-y24.277
xy-0.735
xz-3.420
yz-0.873


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.612 -0.157 -0.144
y -0.157 5.792 0.019
z -0.144 0.019 5.256


<r2> (average value of r2) Å2
<r2> 130.646
(<r2>)1/2 11.430