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

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/6-31G**
 hartrees
Energy at 0K-269.481159
Energy at 298.15K-269.491028
Nuclear repulsion energy195.372695
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 B3PW91/6-31G**
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 3684 20.18      
2 A 3778 3621 49.16      
3 A 3153 3021 18.62      
4 A 3142 3011 30.05      
5 A 3113 2984 25.62      
6 A 3060 2933 18.81      
7 A 3028 2902 47.43      
8 A 2926 2804 84.11      
9 A 1511 1448 1.84      
10 A 1502 1439 2.86      
11 A 1494 1432 6.06      
12 A 1456 1396 30.15      
13 A 1418 1359 39.95      
14 A 1398 1340 13.23      
15 A 1390 1332 7.65      
16 A 1360 1303 50.55      
17 A 1302 1248 46.18      
18 A 1229 1178 17.48      
19 A 1193 1143 27.49      
20 A 1102 1057 26.88      
21 A 1095 1049 16.02      
22 A 1063 1019 115.53      
23 A 947 908 3.08      
24 A 929 890 16.58      
25 A 858 822 11.82      
26 A 562 539 145.04      
27 A 522 501 25.05      
28 A 481 461 6.13      
29 A 364 348 40.46      
30 A 348 334 50.36      
31 A 251 240 2.99      
32 A 227 218 0.32      
33 A 156 150 4.01      

Unscaled Zero Point Vibrational Energy (zpe) 25100.5 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 24056.3 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 B3PW91/6-31G**
ABC
0.28978 0.12098 0.09360

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.407 1.374 -0.156
H2 0.536 1.592 -0.181
O3 1.933 -0.055 -0.003
H4 2.139 -0.117 0.937
C5 0.708 -0.746 -0.224
H6 0.603 -0.824 -1.311
H7 0.733 -1.763 0.193
C8 -0.464 0.052 0.342
H9 -0.367 0.057 1.446
C10 -1.810 -0.545 -0.026
H11 -1.921 -0.589 -1.114
H12 -1.920 -1.555 0.382
H13 -2.616 0.076 0.371

Atom - Atom Distances (Å)
  O1 H2 O3 H4 C5 H6 H7 C8 H9 C10 H11 H12 H13
O10.96892.74613.14632.39582.68043.35581.41312.07372.38042.65783.33992.6156
H20.96892.16662.59592.34432.66803.38171.90932.41223.17753.41604.03173.5416
O32.74612.16660.96481.42402.01792.09742.42462.72143.77544.04714.15304.5671
H43.14632.59590.96481.94702.81312.28932.67572.56304.08714.57354.34154.7927
C52.39582.34431.42401.94701.09511.09991.52662.14232.53362.78052.81563.4759
H62.68042.66802.01792.81311.09511.77792.15363.05292.74802.54303.12513.7425
H73.35583.38172.09742.28931.09991.77792.17972.46902.82813.18312.66763.8256
C81.41311.90932.42462.67571.52662.15362.17971.10881.51752.15732.16882.1526
H92.07372.41222.72142.56302.14233.05292.46901.10882.14763.06402.47852.4930
C102.38043.17753.77544.08712.53362.74802.82811.51752.14761.09461.09491.0930
H112.65783.41604.04714.57352.78052.54303.18312.15733.06401.09461.78101.7698
H123.33994.03174.15304.34152.81563.12512.66762.16882.47851.09491.78101.7741
H132.61563.54164.56714.79273.47593.74253.82562.15262.49301.09301.76981.7741

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 109.109 O1 C8 H9 110.044
O1 C8 C10 108.577 H2 O1 C8 105.020
O3 C5 H6 105.718 O3 C5 H7 111.767
O3 C5 C8 110.473 H4 O3 C5 107.626
C5 C8 H9 107.710 C5 C8 C10 112.673
H6 C5 H7 108.187 H6 C5 C8 109.360
H7 C5 C8 111.142 C8 C10 H11 110.303
C8 C10 H12 111.206 C8 C10 H13 110.024
H9 C8 C10 108.713 H11 C10 H12 108.866
H11 C10 H13 108.003 H12 C10 H13 108.356
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.553      
2 H 0.323      
3 O -0.554      
4 H 0.323      
5 C -0.015      
6 H 0.144      
7 H 0.111      
8 C 0.116      
9 H 0.087      
10 C -0.390      
11 H 0.139      
12 H 0.122      
13 H 0.148      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.545 -1.661 1.510 2.311
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.238 2.089 2.936
y 2.089 -32.122 0.166
z 2.936 0.166 -29.345
Traceless
 xyz
x -1.505 2.089 2.936
y 2.089 -1.330 0.166
z 2.936 0.166 2.835
Polar
3z2-r25.670
x2-y2-0.117
xy2.089
xz2.936
yz0.166


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> 131.663
(<r2>)1/2 11.474