return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-269.528843
Energy at 298.15K-269.538716
Nuclear repulsion energy195.467691
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 B3PW91/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3806 3664 13.43      
2 A 3746 3607 33.95      
3 A 3130 3013 24.01      
4 A 3121 3004 49.83      
5 A 3109 2993 15.38      
6 A 3046 2933 24.08      
7 A 3022 2909 50.80      
8 A 2924 2815 88.26      
9 A 1515 1459 2.66      
10 A 1502 1446 6.53      
11 A 1495 1440 5.53      
12 A 1461 1407 34.98      
13 A 1423 1370 51.84      
14 A 1407 1354 4.96      
15 A 1391 1339 3.50      
16 A 1363 1312 47.61      
17 A 1304 1255 47.53      
18 A 1235 1189 19.85      
19 A 1185 1140 23.20      
20 A 1100 1059 33.78      
21 A 1095 1054 12.16      
22 A 1062 1022 119.59      
23 A 947 912 3.76      
24 A 928 894 18.14      
25 A 857 825 13.05      
26 A 565 544 172.75      
27 A 521 502 24.59      
28 A 482 464 6.24      
29 A 364 350 38.06      
30 A 345 333 60.32      
31 A 250 240 3.55      
32 A 224 216 0.42      
33 A 157 151 4.42      

Unscaled Zero Point Vibrational Energy (zpe) 25040.7 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 24106.7 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 B3PW91/6-311G*
ABC
0.29036 0.12096 0.09367

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.415 1.371 -0.156
H2 0.520 1.614 -0.170
O3 1.933 -0.051 0.003
H4 2.156 -0.141 0.936
C5 0.709 -0.740 -0.233
H6 0.614 -0.800 -1.320
H7 0.740 -1.761 0.171
C8 -0.463 0.047 0.339
H9 -0.356 0.059 1.441
C10 -1.807 -0.549 -0.021
H11 -1.928 -0.587 -1.107
H12 -1.916 -1.561 0.382
H13 -2.611 0.069 0.384

Atom - Atom Distances (Å)
  O1 H2 O3 H4 C5 H6 H7 C8 H9 C10 H11 H12 H13
O10.96632.74973.17622.39282.66943.35431.41412.06772.37522.65073.33712.6092
H20.96632.19042.64152.36242.67563.39921.91812.40403.18043.42274.03943.5350
O32.74972.19040.96261.42492.01352.09192.42132.70563.77304.05314.15234.5616
H43.17622.64150.96261.95392.81072.28272.69212.57014.09664.58764.34764.8031
C52.39282.36241.42491.95391.09301.09851.52302.13902.53162.78182.81823.4722
H62.66942.67562.01352.81071.09301.77892.15173.05022.75872.55933.14303.7494
H73.35433.39922.09192.28271.09851.77892.17832.47542.82723.18292.67263.8244
C81.41411.91812.42132.69211.52302.15172.17831.10721.51382.15402.16782.1488
H92.06772.40402.70562.57012.13903.05022.47541.10722.14733.06272.48562.4903
C102.37523.18043.77304.09662.53162.75872.82721.51382.14731.09361.09411.0921
H112.65073.42274.05314.58762.78182.55933.18292.15403.06271.09361.77901.7663
H123.33714.03944.15234.34762.81823.14302.67262.16782.48561.09411.77901.7714
H132.60923.53504.56164.80313.47223.74943.82442.14882.49031.09211.76631.7714

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 109.053 O1 C8 H9 109.591
O1 C8 C10 108.383 H2 O1 C8 105.831
O3 C5 H6 105.435 O3 C5 H7 111.336
O3 C5 C8 110.397 H4 O3 C5 108.290
C5 C8 H9 107.785 C5 C8 C10 112.953
H6 C5 H7 108.533 H6 C5 C8 109.575
H7 C5 C8 111.366 C8 C10 H11 110.371
C8 C10 H12 111.441 C8 C10 H13 110.045
H9 C8 C10 109.042 H11 C10 H12 108.817
H11 C10 H13 107.826 H12 C10 H13 108.241
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.571      
2 H 0.396      
3 O -0.565      
4 H 0.390      
5 C -0.249      
6 H 0.226      
7 H 0.201      
8 C -0.026      
9 H 0.172      
10 C -0.650      
11 H 0.225      
12 H 0.212      
13 H 0.239      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.616 -1.746 1.647 2.478
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.094 2.095 3.120
y 2.095 -32.544 0.097
z 3.120 0.097 -29.727
Traceless
 xyz
x -1.958 2.095 3.120
y 2.095 -1.134 0.097
z 3.120 0.097 3.092
Polar
3z2-r26.185
x2-y2-0.549
xy2.095
xz3.120
yz0.097


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> 131.993
(<r2>)1/2 11.489