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

using model chemistry: HF/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 HF/6-31G
 hartrees
Energy at 0K-267.855840
Energy at 298.15K-267.865793
Nuclear repulsion energy194.824509
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/6-31G
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 4031 3640 38.56      
2 A 4000 3612 56.51      
3 A 3308 2987 40.22      
4 A 3294 2974 21.84      
5 A 3269 2952 33.00      
6 A 3216 2904 49.25      
7 A 3198 2887 14.48      
8 A 3158 2852 66.83      
9 A 1661 1499 3.24      
10 A 1657 1496 5.07      
11 A 1642 1482 3.28      
12 A 1582 1429 13.98      
13 A 1576 1423 10.80      
14 A 1530 1381 7.46      
15 A 1504 1358 25.74      
16 A 1476 1333 27.04      
17 A 1396 1260 81.00      
18 A 1331 1201 22.47      
19 A 1282 1157 7.27      
20 A 1185 1070 39.38      
21 A 1158 1045 57.64      
22 A 1117 1008 118.50      
23 A 1034 934 2.44      
24 A 1009 911 32.74      
25 A 916 827 18.38      
26 A 556 502 27.91      
27 A 517 467 130.68      
28 A 503 454 142.63      
29 A 391 353 13.83      
30 A 272 246 14.14      
31 A 254 229 129.32      
32 A 233 211 1.06      
33 A 154 139 9.58      

Unscaled Zero Point Vibrational Energy (zpe) 26703.7 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 24110.7 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/6-31G
ABC
0.28779 0.11987 0.09273

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.451 1.372 -0.153
H2 0.427 1.742 -0.153
O3 1.940 -0.030 0.022
H4 2.336 -0.264 0.854
C5 0.712 -0.728 -0.258
H6 0.625 -0.745 -1.333
H7 0.753 -1.747 0.107
C8 -0.458 0.030 0.345
H9 -0.339 0.053 1.426
C10 -1.802 -0.574 -0.012
H11 -1.926 -0.603 -1.087
H12 -1.899 -1.580 0.382
H13 -2.596 0.035 0.399

Atom - Atom Distances (Å)
  O1 H2 O3 H4 C5 H6 H7 C8 H9 C10 H11 H12 H13
O10.95342.77663.38482.40232.65123.35311.43122.06082.37242.63553.33032.5869
H20.95342.33582.94602.48832.75973.51381.99062.43603.21743.45104.09003.5155
O32.77662.33580.95051.43972.01872.08932.41992.67783.78114.06244.15494.5516
H43.38482.94600.95052.02242.81792.29452.85522.75414.23924.69584.45964.9621
C52.40232.48831.43972.02241.07831.08371.51902.13362.53092.76822.81973.4579
H62.65122.75972.01872.81791.07831.75952.14243.02992.76902.56733.16353.7396
H73.35313.51382.08932.29451.08371.75952.16352.48432.81423.14872.67093.8046
C81.43121.99062.41992.85521.51902.14242.16351.08801.51602.14662.16052.1387
H92.06082.43602.67782.75412.13363.02992.48431.08802.14503.04412.48762.4798
C102.37243.21743.78114.23922.53092.76902.81421.51602.14501.08301.08461.0812
H112.63553.45104.06244.69582.76822.56733.14872.14663.04411.08301.76441.7504
H123.33034.09004.15494.45962.81973.16352.67092.16052.48761.08461.76441.7588
H132.58693.51554.55164.96213.45793.73963.80462.13872.47981.08121.75041.7588

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 109.001 O1 C8 H9 109.023
O1 C8 C10 107.179 H2 O1 C8 111.615
O3 C5 H6 105.691 O3 C5 H7 110.988
O3 C5 C8 109.718 H4 O3 C5 114.013
C5 C8 H9 108.733 C5 C8 C10 113.006
H6 C5 H7 108.942 H6 C5 C8 109.990
H7 C5 C8 111.354 C8 C10 H11 110.248
C8 C10 H12 111.267 C8 C10 H13 109.731
H9 C8 C10 109.824 H11 C10 H12 108.970
H11 C10 H13 107.956 H12 C10 H13 108.591
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.761 -0.834    
2 H 0.424 0.483    
3 O -0.767 -0.847    
4 H 0.406 0.484    
5 C 0.006 0.335    
6 H 0.197 0.047    
7 H 0.150 -0.029    
8 C 0.151 0.500    
9 H 0.144 -0.032    
10 C -0.447 -0.456    
11 H 0.170 0.118    
12 H 0.142 0.071    
13 H 0.186 0.161    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.689 -2.620 1.890 3.303
CHELPG 0.675 -2.570 1.883 3.257
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.369 1.592 3.398
y 1.592 -32.380 0.236
z 3.398 0.236 -29.974
Traceless
 xyz
x -2.192 1.592 3.398
y 1.592 -0.709 0.236
z 3.398 0.236 2.901
Polar
3z2-r25.801
x2-y2-0.988
xy1.592
xz3.398
yz0.236


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.798 0.311 0.268
y 0.311 5.308 -0.194
z 0.268 -0.194 4.993


<r2> (average value of r2) Å2
<r2> 133.361
(<r2>)1/2 11.548