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

using model chemistry: B3PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/6-31+G**
 hartrees
Energy at 0K-269.496244
Energy at 298.15K-269.505985
Nuclear repulsion energy194.791456
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 B3PW91/6-31+G**
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 3859 3705 30.57      
2 A 3799 3647 53.43      
3 A 3149 3023 16.09      
4 A 3138 3012 30.78      
5 A 3118 2994 19.80      
6 A 3056 2934 23.87      
7 A 3035 2914 42.42      
8 A 2950 2832 74.76      
9 A 1502 1442 3.19      
10 A 1493 1433 5.81      
11 A 1485 1425 3.57      
12 A 1439 1382 18.25      
13 A 1411 1354 31.87      
14 A 1384 1329 11.02      
15 A 1377 1322 11.27      
16 A 1345 1291 32.75      
17 A 1284 1233 53.71      
18 A 1218 1170 15.50      
19 A 1181 1134 28.77      
20 A 1093 1049 45.04      
21 A 1085 1042 10.30      
22 A 1056 1014 119.66      
23 A 942 904 4.19      
24 A 922 886 17.76      
25 A 854 820 13.72      
26 A 534 512 60.09      
27 A 496 477 121.91      
28 A 477 458 7.71      
29 A 359 345 14.30      
30 A 308 296 80.71      
31 A 246 236 4.07      
32 A 223 214 0.42      
33 A 147 141 5.34      

Unscaled Zero Point Vibrational Energy (zpe) 24980.7 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 23983.9 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 B3PW91/6-31+G**
ABC
0.28685 0.12010 0.09279

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.445 1.379 -0.155
H2 0.481 1.662 -0.158
O3 1.945 -0.046 0.003
H4 2.200 -0.173 0.924
C5 0.716 -0.729 -0.236
H6 0.619 -0.788 -1.325
H7 0.742 -1.751 0.168
C8 -0.463 0.050 0.340
H9 -0.359 0.067 1.441
C10 -1.799 -0.573 -0.021
H11 -1.918 -0.620 -1.108
H12 -1.884 -1.585 0.389
H13 -2.615 0.032 0.384

Atom - Atom Distances (Å)
  O1 H2 O3 H4 C5 H6 H7 C8 H9 C10 H11 H12 H13
O10.96812.78713.25122.40762.68283.36261.41842.06792.37992.66023.34022.6110
H20.96812.25542.73772.40342.71763.43811.93332.40963.19613.44524.05473.5410
O32.78712.25540.96431.42612.01832.09332.43362.71883.78154.06134.14564.5770
H43.25122.73770.96431.96372.81722.27762.73572.62214.12884.61454.35484.8498
C52.40762.40341.42611.96371.09481.09911.52562.14532.52932.77762.80853.4727
H62.68282.71762.01832.81721.09481.77982.15473.05592.75562.55233.13653.7484
H73.36263.43812.09332.27761.09911.77982.17322.47772.80673.15962.64073.8067
C81.41841.93332.43362.73571.52562.15472.17321.10661.51772.15952.16732.1527
H92.06792.40962.71882.62212.14533.05592.47771.10662.14963.06642.48312.4916
C102.37993.19613.78154.12882.52932.75562.80671.51772.14961.09491.09521.0933
H112.66023.44524.06134.61452.77762.55233.15962.15953.06641.09491.78151.7708
H123.34024.05474.14564.35482.80853.13652.64072.16732.48311.09521.78151.7743
H132.61103.54104.57704.84983.47273.74843.80672.15272.49161.09331.77081.7743

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 109.677 O1 C8 H9 109.342
O1 C8 C10 108.259 H2 O1 C8 106.690
O3 C5 H6 105.626 O3 C5 H7 111.326
O3 C5 C8 111.022 H4 O3 C5 108.932
C5 C8 H9 108.117 C5 C8 C10 112.422
H6 C5 H7 108.432 H6 C5 C8 109.527
H7 C5 C8 110.738 C8 C10 H11 110.448
C8 C10 H12 111.059 C8 C10 H13 110.006
H9 C8 C10 108.986 H11 C10 H12 108.868
H11 C10 H13 108.042 H12 C10 H13 108.338
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.499      
2 H 0.363      
3 O -0.551      
4 H 0.358      
5 C -0.251      
6 H 0.170      
7 H 0.144      
8 C 0.155      
9 H 0.124      
10 C -0.528      
11 H 0.174      
12 H 0.157      
13 H 0.183      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.449 -1.961 1.651 2.603
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.488 2.063 3.053
y 2.063 -32.862 0.142
z 3.053 0.142 -30.128
Traceless
 xyz
x -1.993 2.063 3.053
y 2.063 -1.054 0.142
z 3.053 0.142 3.047
Polar
3z2-r26.094
x2-y2-0.626
xy2.063
xz3.053
yz0.142


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> 133.205
(<r2>)1/2 11.541