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

using model chemistry: mPW1PW91/6-31G(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 mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-269.527177
Energy at 298.15K-269.537038
Nuclear repulsion energy195.985829
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 mPW1PW91/6-31G(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 3877 3701 26.55      
2 A 3813 3641 53.56      
3 A 3159 3016 16.13      
4 A 3150 3007 25.84      
5 A 3114 2973 24.59      
6 A 3066 2927 17.06      
7 A 3034 2897 43.17      
8 A 2935 2802 74.29      
9 A 1504 1436 1.30      
10 A 1495 1428 3.17      
11 A 1489 1421 9.33      
12 A 1457 1391 32.27      
13 A 1418 1354 48.99      
14 A 1400 1336 3.32      
15 A 1388 1326 3.04      
16 A 1361 1299 49.95      
17 A 1305 1246 36.38      
18 A 1232 1176 16.43      
19 A 1200 1145 30.93      
20 A 1113 1062 28.34      
21 A 1099 1049 13.80      
22 A 1069 1021 104.25      
23 A 948 905 3.01      
24 A 929 887 14.26      
25 A 860 821 10.64      
26 A 556 531 110.76      
27 A 521 497 32.21      
28 A 479 457 5.35      
29 A 363 346 29.29      
30 A 343 327 54.85      
31 A 252 241 2.26      
32 A 219 210 0.34      
33 A 154 147 3.33      

Unscaled Zero Point Vibrational Energy (zpe) 25150.1 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 24010.8 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 mPW1PW91/6-31G(2df,p)
ABC
0.29114 0.12186 0.09420

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.401 1.371 -0.155
H2 0.538 1.581 -0.193
O3 1.926 -0.058 -0.007
H4 2.125 -0.095 0.931
C5 0.705 -0.746 -0.217
H6 0.597 -0.835 -1.302
H7 0.729 -1.758 0.210
C8 -0.463 0.056 0.342
H9 -0.370 0.063 1.445
C10 -1.805 -0.542 -0.029
H11 -1.912 -0.589 -1.116
H12 -1.914 -1.550 0.380
H13 -2.613 0.078 0.363

Atom - Atom Distances (Å)
  O1 H2 O3 H4 C5 H6 H7 C8 H9 C10 H11 H12 H13
O10.96342.73463.11552.38932.67923.34631.40722.06652.37622.65483.33232.6143
H20.96342.15572.56672.33342.65963.36861.90192.41093.16663.40094.01803.5359
O32.73462.15570.95951.41692.01192.09022.41752.71953.76254.02974.13754.5566
H43.11552.56670.95951.93822.80512.28772.65872.55244.07034.55274.32784.7754
C52.38932.33341.41691.93821.09421.09821.52352.13842.52572.77142.80383.4683
H62.67922.65962.01192.80511.09421.77602.14953.04752.73402.52703.10523.7298
H73.34633.36862.09022.28771.09821.77602.17442.45942.82093.17742.65643.8165
C81.40721.90192.41752.65871.52352.14952.17441.10691.51502.15392.16382.1502
H92.06652.41092.71952.55242.13843.04752.45941.10692.14443.05952.47332.4906
C102.37623.16663.76254.07032.52572.73402.82091.51502.14441.09311.09321.0916
H112.65483.40094.02974.55272.77142.52703.17742.15393.05951.09311.77811.7682
H123.33234.01804.13754.32782.80383.10522.65642.16382.47331.09321.77811.7719
H132.61433.53594.55664.77543.46833.72983.81652.15022.49061.09161.76821.7719

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 109.162 O1 C8 H9 109.992
O1 C8 C10 108.752 H2 O1 C8 105.147
O3 C5 H6 105.771 O3 C5 H7 111.786
O3 C5 C8 110.555 H4 O3 C5 107.738
C5 C8 H9 107.718 C5 C8 C10 112.449
H6 C5 H7 108.202 H6 C5 C8 109.304
H7 C5 C8 111.033 C8 C10 H11 110.297
C8 C10 H12 111.086 C8 C10 H13 110.096
H9 C8 C10 108.751 H11 C10 H12 108.838
H11 C10 H13 108.059 H12 C10 H13 108.386
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.469      
2 H 0.304      
3 O -0.459      
4 H 0.307      
5 C -0.114      
6 H 0.146      
7 H 0.119      
8 C 0.101      
9 H 0.080      
10 C -0.460      
11 H 0.150      
12 H 0.137      
13 H 0.158      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.520 -1.525 1.408 2.140
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.035 2.002 2.723
y 2.002 -31.999 0.124
z 2.723 0.124 -29.174
Traceless
 xyz
x -1.448 2.002 2.723
y 2.002 -1.395 0.124
z 2.723 0.124 2.843
Polar
3z2-r25.686
x2-y2-0.035
xy2.002
xz2.723
yz0.124


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.794 0.214 0.143
y 0.214 6.064 -0.057
z 0.143 -0.057 5.754


<r2> (average value of r2) Å2
<r2> 130.839
(<r2>)1/2 11.438