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: HF/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 HF/6-311G**
 hartrees
Energy at 0K-268.051012
Energy at 298.15K-268.061099
Nuclear repulsion energy196.243072
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 HF/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 4174 3792 50.45      
2 A 4156 3776 74.22      
3 A 3249 2952 64.27      
4 A 3246 2949 39.31      
5 A 3229 2934 26.47      
6 A 3172 2882 65.79      
7 A 3164 2874 12.34      
8 A 3096 2812 82.86      
9 A 1627 1478 3.12      
10 A 1618 1470 1.48      
11 A 1606 1459 8.35      
12 A 1582 1437 13.13      
13 A 1546 1405 38.13      
14 A 1517 1378 3.13      
15 A 1508 1370 29.92      
16 A 1472 1337 45.80      
17 A 1401 1273 74.66      
18 A 1330 1208 24.20      
19 A 1283 1165 22.71      
20 A 1193 1084 71.48      
21 A 1174 1067 4.94      
22 A 1147 1042 105.92      
23 A 1020 927 6.24      
24 A 1004 912 18.56      
25 A 914 831 13.13      
26 A 566 514 30.85      
27 A 521 473 46.61      
28 A 485 441 130.41      
29 A 389 354 16.27      
30 A 332 302 85.76      
31 A 271 246 5.51      
32 A 240 218 0.58      
33 A 160 145 3.58      

Unscaled Zero Point Vibrational Energy (zpe) 26694.9 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 24252.3 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 HF/6-311G**
ABC
0.29080 0.12108 0.09376

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.466 1.364 -0.160
H2 0.416 1.697 -0.138
O3 1.938 -0.044 0.020
H4 2.176 -0.177 0.920
C5 0.727 -0.708 -0.253
H6 0.637 -0.742 -1.332
H7 0.748 -1.729 0.122
C8 -0.453 0.053 0.332
H9 -0.337 0.073 1.419
C10 -1.784 -0.588 -0.009
H11 -1.917 -0.634 -1.086
H12 -1.850 -1.594 0.396
H13 -2.594 0.002 0.405

Atom - Atom Distances (Å)
  O1 H2 O3 H4 C5 H6 H7 C8 H9 C10 H11 H12 H13
O10.94222.79153.24322.39262.65073.33481.40102.04402.36132.63803.31372.5895
H20.94222.31812.78022.42762.72453.45181.91802.37263.17503.43154.03143.4966
O32.79152.31810.94071.40772.00152.06512.41282.67333.76224.05364.11034.5485
H43.24322.78020.94071.93832.78522.25442.70312.57374.08854.58074.30004.8008
C52.39262.42761.40771.93831.08311.08811.52042.13012.52612.77302.80153.4590
H62.65072.72452.00152.78521.08311.76092.14173.03002.76372.56843.14613.7428
H73.33483.45182.06512.25441.08811.76092.15862.47092.78073.12422.61603.7743
C81.40101.91802.41282.70311.52042.14172.15861.09361.51702.15082.16102.1433
H92.04402.37262.67332.57372.13013.03002.47091.09362.13853.04492.47332.4758
C102.36133.17503.76224.08852.52612.76372.78071.51702.13851.08561.08641.0838
H112.63803.43154.05364.58072.77302.56843.12422.15083.04491.08561.76661.7559
H123.31374.03144.11034.30002.80153.14612.61602.16102.47331.08641.76661.7611
H132.58953.49664.54854.80083.45903.74283.77432.14332.47581.08381.75591.7611

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 109.901 O1 C8 H9 109.429
O1 C8 C10 107.980 H2 O1 C8 108.289
O3 C5 H6 106.214 O3 C5 H7 111.028
O3 C5 C8 110.917 H4 O3 C5 109.647
C5 C8 H9 108.037 C5 C8 C10 112.541
H6 C5 H7 108.399 H6 C5 C8 109.553
H7 C5 C8 110.596 C8 C10 H11 110.361
C8 C10 H12 111.132 C8 C10 H13 109.871
H9 C8 C10 108.918 H11 C10 H12 108.846
H11 C10 H13 108.072 H12 C10 H13 108.483
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.482      
2 H 0.258      
3 O -0.487      
4 H 0.245      
5 C 0.100      
6 H 0.095      
7 H 0.075      
8 C 0.085      
9 H 0.055      
10 C -0.231      
11 H 0.096      
12 H 0.081      
13 H 0.108      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.504 -1.777 1.663 2.486
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.685 1.931 2.930
y 1.931 -32.110 0.196
z 2.930 0.196 -29.631
Traceless
 xyz
x -2.814 1.931 2.930
y 1.931 -0.452 0.196
z 2.930 0.196 3.266
Polar
3z2-r26.533
x2-y2-1.575
xy1.931
xz2.930
yz0.196


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.327 0.246 0.160
y 0.246 5.715 -0.046
z 0.160 -0.046 5.553


<r2> (average value of r2) Å2
<r2> 131.795
(<r2>)1/2 11.480