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

using model chemistry: B2PLYP/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 B2PLYP/6-31G*
 hartrees
Energy at 0K-269.267212
Energy at 298.15K-269.276986
HF Energy-269.020555
Nuclear repulsion energy195.268650
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 B2PLYP/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 3795 3602 28.96      
2 A 3732 3542 40.14      
3 A 3176 3015 19.45      
4 A 3163 3003 32.41      
5 A 3091 2934 63.60      
6 A 3088 2931 18.22      
7 A 3043 2888 46.00      
8 A 3021 2867 41.54      
9 A 1558 1479 5.00      
10 A 1552 1473 2.06      
11 A 1537 1459 4.60      
12 A 1496 1420 18.49      
13 A 1472 1397 7.96      
14 A 1436 1363 5.09      
15 A 1417 1345 45.81      
16 A 1325 1257 64.64      
17 A 1288 1223 2.58      
18 A 1279 1214 41.67      
19 A 1186 1126 19.43      
20 A 1142 1084 37.78      
21 A 1110 1054 25.78      
22 A 1073 1019 100.52      
23 A 971 921 4.15      
24 A 959 910 10.50      
25 A 861 817 8.91      
26 A 530 503 37.79      
27 A 502 476 96.36      
28 A 482 458 30.00      
29 A 370 351 8.89      
30 A 269 255 89.53      
31 A 259 245 27.95      
32 A 232 220 0.87      
33 A 158 150 3.83      

Unscaled Zero Point Vibrational Energy (zpe) 25284.8 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 24000.3 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 B2PLYP/6-31G*
ABC
0.28995 0.12187 0.09376

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.793 -0.577 0.027
C2 0.460 0.053 -0.339
C3 -0.719 -0.734 0.212
O4 -1.884 -0.006 -0.161
O5 0.446 1.366 0.190
H6 -0.448 1.704 0.037
H7 -2.647 -0.379 0.298
H8 -0.618 -0.796 1.305
H9 -0.722 -1.754 -0.199
H10 0.353 0.077 -1.435
H11 1.905 -0.622 1.114
H12 1.873 -1.589 -0.380
H13 2.609 0.026 -0.376

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11 H12 H13
C11.51922.52393.72612.37023.19784.45232.73692.78582.15391.09361.09381.0921
C21.51921.52062.35161.41631.92143.20042.14072.16311.10152.15742.16662.1502
C32.52391.52061.42352.40212.45851.96161.09881.09982.12582.77742.79313.4645
O43.72612.35161.42352.72752.24130.96502.09232.09912.57564.04554.08294.4990
O52.37021.41632.40212.72750.96833.55342.65583.35442.07652.63333.33112.6069
H63.19781.92142.45852.24130.96833.03942.80813.47602.33553.47924.05033.5122
H74.45233.20041.96160.96503.55343.03942.30322.41673.49394.63094.72755.3146
H82.73692.14071.09882.09232.65582.80812.30321.78563.03462.53623.10943.7300
H92.78582.16311.09982.09913.35443.47602.41671.78562.45613.14812.60643.7812
H102.15391.10152.12582.57562.07652.33553.49393.03462.45613.06502.48982.4935
H111.09362.15742.77744.04552.63333.47924.63092.53623.14813.06501.78041.7701
H121.09382.16662.79314.08293.33114.05034.72753.10942.60642.48981.78041.7753
H131.09212.15023.46454.49902.60693.51225.31463.73003.78122.49351.77011.7753

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 52.121 O1 C8 H9 72.627
O1 C8 C10 43.444 H2 O1 C8 51.153
O3 C5 H6 81.797 O3 C5 H7 31.545
O3 C5 C8 24.437 H4 O3 C5 87.007
C5 C8 H9 96.115 C5 C8 C10 42.149
H6 C5 H7 51.051 H6 C5 C8 88.823
H7 C5 C8 40.392 C8 C10 H11 49.135
C8 C10 H12 67.677 C8 C10 H13 84.260
H9 C8 C10 54.035 H11 C10 H12 35.513
H11 C10 H13 35.275 H12 C10 H13 41.739
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.472      
2 C 0.151      
3 C -0.035      
4 O -0.691      
5 O -0.693      
6 H 0.428      
7 H 0.420      
8 H 0.140      
9 H 0.136      
10 H 0.137      
11 H 0.160      
12 H 0.146      
13 H 0.175      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.569 -0.171 -0.140
y -0.171 5.754 0.022
z -0.140 0.022 5.192


<r2> (average value of r2) Å2
<r2> 131.704
(<r2>)1/2 11.476