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

using model chemistry: PBEPBE/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-269.262477
Energy at 298.15K-269.272231
Nuclear repulsion energy194.497770
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(2df,p)
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 3694 3656 14.00      
2 A 3603 3566 49.16      
3 A 3070 3038 15.46      
4 A 3062 3031 24.16      
5 A 3020 2989 24.23      
6 A 2981 2950 16.78      
7 A 2936 2905 47.58      
8 A 2820 2791 80.26      
9 A 1452 1437 1.03      
10 A 1438 1423 4.54      
11 A 1435 1420 10.20      
12 A 1403 1389 44.48      
13 A 1368 1354 45.74      
14 A 1347 1333 1.92      
15 A 1330 1316 3.01      
16 A 1311 1297 45.11      
17 A 1261 1248 22.78      
18 A 1186 1173 13.23      
19 A 1141 1130 26.71      
20 A 1061 1050 19.64      
21 A 1058 1047 8.97      
22 A 1016 1006 104.66      
23 A 910 901 5.27      
24 A 892 883 13.31      
25 A 827 818 11.02      
26 A 574 568 116.27      
27 A 513 508 5.44      
28 A 465 460 7.72      
29 A 359 356 64.99      
30 A 347 343 10.40      
31 A 247 245 1.98      
32 A 211 209 0.22      
33 A 152 151 3.70      

Unscaled Zero Point Vibrational Energy (zpe) 24244.7 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 23995.0 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(2df,p)
ABC
0.28742 0.12028 0.09298

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.385 1.381 -0.155
H2 0.578 1.551 -0.200
O3 1.938 -0.060 -0.015
H4 2.118 -0.070 0.941
C5 0.703 -0.764 -0.208
H6 0.593 -0.867 -1.302
H7 0.732 -1.778 0.238
C8 -0.470 0.054 0.347
H9 -0.382 0.056 1.462
C10 -1.825 -0.530 -0.035
H11 -1.924 -0.578 -1.132
H12 -1.949 -1.544 0.378
H13 -2.635 0.105 0.354

Atom - Atom Distances (Å)
  O1 H2 O3 H4 C5 H6 H7 C8 H9 C10 H11 H12 H13
O10.97822.73693.09322.40582.70723.37361.42142.09022.39602.67673.36012.6369
H20.97822.11632.50992.31822.65723.36091.90722.43243.18233.41464.03713.5665
O32.73692.11630.97271.43452.02822.11402.43772.75223.79144.05344.17904.5905
H43.09322.50990.97271.95072.82642.30942.65842.55664.08754.57104.36264.7923
C52.40582.31821.43451.95071.10371.10811.53422.15372.54382.79092.82583.4944
H62.70722.65722.02822.82641.10371.79412.16773.07262.75022.54013.12173.7561
H73.37363.36092.11402.30941.10811.79412.19392.47012.85753.22052.69473.8590
C81.42141.90722.43772.65841.53422.16772.19391.11841.52362.16822.17782.1654
H92.09022.43242.75222.55662.15373.07262.47011.11842.16033.08382.48862.5116
C102.39603.18233.79144.08752.54382.75022.85751.52362.16031.10211.10221.1006
H112.67673.41464.05344.57102.79092.54013.22052.16823.08381.10211.79291.7827
H123.36014.03714.17904.36262.82583.12172.69472.17782.48861.10221.79291.7859
H132.63693.56654.59054.79233.49443.75613.85902.16542.51161.10061.78271.7859

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 108.916 O1 C8 H9 110.197
O1 C8 C10 108.850 H2 O1 C8 103.736
O3 C5 H6 105.337 O3 C5 H7 111.851
O3 C5 C8 110.352 H4 O3 C5 106.684
C5 C8 H9 107.531 C5 C8 C10 112.594
H6 C5 H7 108.419 H6 C5 C8 109.438
H7 C5 C8 111.234 C8 C10 H11 110.297
C8 C10 H12 111.056 C8 C10 H13 110.167
H9 C8 C10 108.740 H11 C10 H12 108.850
H11 C10 H13 108.056 H12 C10 H13 108.336
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.408      
2 H 0.275      
3 O -0.393      
4 H 0.286      
5 C -0.123      
6 H 0.127      
7 H 0.102      
8 C 0.098      
9 H 0.058      
10 C -0.419      
11 H 0.133      
12 H 0.122      
13 H 0.141      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.524 -1.457 1.334 2.044
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.031 1.960 2.651
y 1.960 -32.416 0.151
z 2.651 0.151 -29.542
Traceless
 xyz
x -1.052 1.960 2.651
y 1.960 -1.629 0.151
z 2.651 0.151 2.681
Polar
3z2-r25.362
x2-y20.385
xy1.960
xz2.651
yz0.151


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.205 0.207 0.153
y 0.207 6.380 -0.067
z 0.153 -0.067 5.990


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000