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

using model chemistry: PBEPBE/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 PBEPBE/6-31G*
 hartrees
Energy at 0K-269.231173
Energy at 298.15K-269.240971
Nuclear repulsion energy194.231941
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 PBEPBE/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 3615 3563 8.70      
2 A 3524 3473 43.53      
3 A 3078 3034 17.65      
4 A 3069 3025 29.32      
5 A 3043 2999 24.05      
6 A 2992 2949 18.23      
7 A 2951 2909 52.40      
8 A 2830 2789 91.35      
9 A 1484 1463 1.76      
10 A 1470 1449 4.22      
11 A 1465 1444 5.44      
12 A 1425 1404 46.28      
13 A 1387 1367 45.23      
14 A 1372 1352 9.56      
15 A 1350 1331 5.50      
16 A 1328 1309 50.30      
17 A 1276 1258 28.89      
18 A 1199 1182 14.55      
19 A 1151 1134 22.44      
20 A 1071 1056 21.43      
21 A 1064 1049 13.26      
22 A 1022 1008 106.37      
23 A 922 909 5.60      
24 A 903 890 15.07      
25 A 835 823 11.95      
26 A 592 584 145.85      
27 A 519 511 5.64      
28 A 473 466 9.05      
29 A 367 362 75.97      
30 A 350 345 7.68      
31 A 247 243 2.48      
32 A 223 220 0.22      
33 A 157 155 4.34      

Unscaled Zero Point Vibrational Energy (zpe) 24376.1 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 24027.5 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 PBEPBE/6-31G*
ABC
0.28731 0.11990 0.09282

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.387 1.381 -0.156
H2 0.583 1.554 -0.188
O3 1.940 -0.058 -0.011
H4 2.121 -0.088 0.952
C5 0.703 -0.763 -0.216
H6 0.599 -0.852 -1.311
H7 0.735 -1.783 0.218
C8 -0.470 0.051 0.346
H9 -0.377 0.052 1.462
C10 -1.827 -0.530 -0.032
H11 -1.931 -0.576 -1.129
H12 -1.956 -1.545 0.383
H13 -2.635 0.110 0.360

Atom - Atom Distances (Å)
  O1 H2 O3 H4 C5 H6 H7 C8 H9 C10 H11 H12 H13
O10.98582.73933.11032.40552.69973.37741.42432.09352.39612.67603.36322.6333
H20.98582.11452.52252.32062.65503.36541.91222.42913.19053.42714.04683.5695
O32.73932.11450.98011.43872.02962.11682.43872.74713.79684.06234.18834.5925
H43.11032.52250.98011.95732.83222.30912.66452.55304.09294.58114.36634.7962
C52.40552.32061.43871.95731.10351.10911.53432.15532.54762.79372.83523.4975
H62.69972.65502.02962.83221.10351.79602.16883.07532.76182.55133.14293.7648
H73.37743.36542.11682.30911.10911.79602.19772.47972.86313.22142.70613.8672
C81.42431.91222.43872.66451.53432.16882.19771.11941.52382.16882.18032.1653
H92.09352.42912.74712.55302.15533.07532.47971.11942.16183.08602.49142.5128
C102.39613.19053.79684.09292.54762.76182.86311.52382.16181.10341.10381.1020
H112.67603.42714.06234.58112.79372.55133.22142.16883.08601.10341.79591.7845
H123.36324.04684.18834.36632.83523.14292.70612.18032.49141.10381.79591.7885
H132.63333.56954.59254.79623.49753.76483.86722.16532.51281.10201.78451.7885

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 108.734 O1 C8 H9 110.202
O1 C8 C10 108.688 H2 O1 C8 103.505
O3 C5 H6 105.187 O3 C5 H7 111.722
O3 C5 C8 110.183 H4 O3 C5 106.495
C5 C8 H9 107.592 C5 C8 C10 112.830
H6 C5 H7 108.526 H6 C5 C8 109.531
H7 C5 C8 111.472 C8 C10 H11 110.259
C8 C10 H12 111.144 C8 C10 H13 110.064
H9 C8 C10 108.783 H11 C10 H12 108.912
H11 C10 H13 108.027 H12 C10 H13 108.355
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.594      
2 H 0.387      
3 O -0.580      
4 H 0.389      
5 C -0.115      
6 H 0.170      
7 H 0.138      
8 C 0.090      
9 H 0.108      
10 C -0.490      
11 H 0.167      
12 H 0.152      
13 H 0.178      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.551 -1.604 1.468 2.243
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.310 2.103 2.892
y 2.103 -32.552 0.189
z 2.892 0.189 -29.631
Traceless
 xyz
x -1.219 2.103 2.892
y 2.103 -1.582 0.189
z 2.892 0.189 2.800
Polar
3z2-r25.601
x2-y20.242
xy2.103
xz2.892
yz0.189


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.805 0.212 0.171
y 0.212 6.076 -0.115
z 0.171 -0.115 5.730


<r2> (average value of r2) Å2
<r2> 132.804
(<r2>)1/2 11.524