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

using model chemistry: B1B95/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/STO-3G
 hartrees
Energy at 0K-265.950153
Energy at 298.15K-265.959986
Nuclear repulsion energy193.094834
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 B1B95/STO-3G
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 3759 3319 17.75      
2 A 3514 3103 0.70      
3 A 3508 3097 1.25      
4 A 3478 3071 103.27      
5 A 3449 3046 2.16      
6 A 3334 2944 0.86      
7 A 3323 2934 4.45      
8 A 3236 2857 29.90      
9 A 1731 1528 90.69      
10 A 1681 1484 6.01      
11 A 1671 1475 7.38      
12 A 1638 1446 0.48      
13 A 1562 1379 15.81      
14 A 1553 1371 6.99      
15 A 1489 1315 13.81      
16 A 1448 1279 7.74      
17 A 1405 1241 4.32      
18 A 1281 1131 10.74      
19 A 1241 1096 7.53      
20 A 1177 1039 3.05      
21 A 1158 1022 1.39      
22 A 1129 997 24.96      
23 A 1007 889 5.13      
24 A 976 862 9.54      
25 A 896 791 1.01      
26 A 849 750 63.98      
27 A 588 519 5.81      
28 A 477 421 36.60      
29 A 463 409 37.75      
30 A 414 365 10.24      
31 A 308 272 2.11      
32 A 201 177 0.06      
33 A 117 103 4.09      

Unscaled Zero Point Vibrational Energy (zpe) 27028.6 cm-1
Scaled (by 0.883) Zero Point Vibrational Energy (zpe) 23866.3 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 B1B95/STO-3G
ABC
0.28127 0.12153 0.09319

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/STO-3G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.194 1.395 -0.107
H2 0.821 1.235 -0.263
O3 1.874 -0.062 -0.147
H4 2.154 0.013 0.833
C5 0.662 -0.887 -0.060
H6 0.472 -1.255 -1.085
H7 0.784 -1.756 0.615
C8 -0.512 0.071 0.394
H9 -0.549 0.060 1.511
C10 -1.889 -0.413 -0.133
H11 -1.891 -0.446 -1.230
H12 -2.118 -1.417 0.252
H13 -2.679 0.275 0.196

Atom - Atom Distances (Å)
  O1 H2 O3 H4 C5 H6 H7 C8 H9 C10 H11 H12 H13
O11.03972.53022.88182.43722.90233.37701.45112.12782.47882.74363.42582.7424
H21.03971.67462.11432.13722.64523.11711.88822.53153.17493.33353.99203.6583
O32.53021.67461.02221.46882.06612.15332.45042.93903.77953.93604.23454.5781
H42.88182.11431.02221.95822.84912.24792.70252.78714.17844.56334.54224.8814
C52.43722.13721.46881.95821.10561.10721.58122.19812.59512.84182.84693.5457
H62.90232.64522.06612.84911.10561.79952.21663.08442.68142.50152.91923.7294
H73.37703.11712.15332.24791.10721.79952.25052.42433.08313.50332.94434.0360
C81.45111.88822.45042.70251.58122.21662.25051.11831.55162.19152.19352.1852
H92.12782.53152.93902.78712.19813.08442.42431.11832.17303.09342.49562.5124
C102.47883.17493.77954.17842.59512.68143.08311.55162.17301.09771.09851.0978
H112.74363.33353.93604.56332.84182.50153.50332.19153.09341.09771.78611.7812
H123.42583.99204.23454.54222.84692.91922.94432.19352.49561.09851.78611.7829
H132.74243.65834.57814.88143.54573.72944.03602.18522.51241.09781.78121.7829

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 106.900 O1 C8 H9 111.160
O1 C8 C10 111.241 H2 O1 C8 97.211
O3 C5 H6 105.888 O3 C5 H7 112.663
O3 C5 C8 106.856 H4 O3 C5 102.156
C5 C8 H9 107.795 C5 C8 C10 111.862
H6 C5 H7 108.825 H6 C5 C8 109.914
H7 C5 C8 112.473 C8 C10 H11 110.459
C8 C10 H12 110.565 C8 C10 H13 109.950
H9 C8 C10 107.861 H11 C10 H12 108.833
H11 C10 H13 108.446 H12 C10 H13 108.530
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.289      
2 H 0.175      
3 O -0.239      
4 H 0.194      
5 C -0.072      
6 H 0.088      
7 H 0.076      
8 C 0.017      
9 H 0.050      
10 C -0.234      
11 H 0.079      
12 H 0.073      
13 H 0.083      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.962 -1.899 1.298 2.494
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.286 1.227 2.567
y 1.227 -30.976 0.066
z 2.567 0.066 -27.743
Traceless
 xyz
x 1.073 1.227 2.567
y 1.227 -2.962 0.066
z 2.567 0.066 1.888
Polar
3z2-r23.776
x2-y22.690
xy1.227
xz2.567
yz0.066


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.855 0.254 0.132
y 0.254 3.109 -0.099
z 0.132 -0.099 2.916


<r2> (average value of r2) Å2
<r2> 131.190
(<r2>)1/2 11.454