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

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at G3B3
 hartrees
Energy at 0K-269.371637
Energy at 298.15K-269.364387
Nuclear repulsion energy 
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 B3LYP/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 3731 3583 13.33      
2 A 3681 3535 40.21      
3 A 3136 3011 22.73      
4 A 3125 3001 43.12      
5 A 3112 2988 17.34      
6 A 3056 2934 20.60      
7 A 3027 2907 48.53      
8 A 2923 2807 85.72      
9 A 1532 1471 1.75      
10 A 1522 1462 2.34      
11 A 1515 1455 4.11      
12 A 1467 1409 31.84      
13 A 1437 1380 28.30      
14 A 1415 1359 25.43      
15 A 1401 1346 8.64      
16 A 1373 1318 49.89      
17 A 1314 1262 46.51      
18 A 1238 1189 16.56      
19 A 1184 1137 19.45      
20 A 1102 1058 20.64      
21 A 1090 1046 21.13      
22 A 1052 1011 114.33      
23 A 949 911 3.70      
24 A 933 896 17.34      
25 A 855 821 12.68      
26 A 561 539 150.79      
27 A 522 501 20.98      
28 A 485 466 5.89      
29 A 364 350 37.31      
30 A 349 335 52.64      
31 A 252 242 3.00      
32 A 228 219 0.32      
33 A 155 149 3.77      

Unscaled Zero Point Vibrational Energy (zpe) 25041.8 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 24047.6 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 B3LYP/6-31G*
ABC
0.28801 0.12001 0.09289

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.412 1.378 -0.157
H2 0.536 1.603 -0.178
O3 1.942 -0.054 -0.002
H4 2.145 -0.115 0.945
C5 0.710 -0.748 -0.227
H6 0.612 -0.821 -1.315
H7 0.741 -1.766 0.189
C8 -0.465 0.049 0.342
H9 -0.366 0.058 1.446
C10 -1.817 -0.548 -0.025
H11 -1.929 -0.595 -1.114
H12 -1.928 -1.557 0.386
H13 -2.622 0.077 0.372

Atom - Atom Distances (Å)
  O1 H2 O3 H4 C5 H6 H7 C8 H9 C10 H11 H12 H13
O10.97422.75913.15872.40482.68773.36601.42012.07732.38692.66603.34782.6183
H20.97422.18042.60802.35842.67913.39541.92032.41653.19113.43244.04683.5500
O32.75912.18040.97081.43162.02022.10052.43402.72703.79094.06334.16974.5813
H43.15872.60800.97081.95762.82072.29562.68382.56594.10144.58954.35644.8052
C52.40482.35841.43161.95761.09471.10011.53042.14642.54282.78832.82673.4850
H62.68772.67912.02022.82071.09471.78062.15963.05802.76302.55833.14393.7562
H73.36603.39542.10052.29561.10011.78062.18472.47592.84063.19302.68363.8393
C81.42011.92032.43402.68381.53042.15962.18471.10841.52232.16282.17302.1573
H92.07732.41652.72702.56592.14643.05802.47591.10842.15333.06992.48422.4995
C102.38693.19113.79094.10142.54282.76302.84061.52232.15331.09561.09621.0942
H112.66603.43244.06334.58952.78832.55833.19302.16283.06991.09561.78281.7720
H123.34784.04684.16974.35642.82673.14392.68362.17302.48421.09621.78281.7765
H132.61833.55004.58134.80523.48503.75623.83932.15732.49951.09421.77201.7765

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 109.124 O1 C8 H9 109.863
O1 C8 C10 108.379 H2 O1 C8 105.119
O3 C5 H6 105.416 O3 C5 H7 111.460
O3 C5 C8 110.474 H4 O3 C5 107.596
C5 C8 H9 107.785 C5 C8 C10 112.812
H6 C5 H7 108.447 H6 C5 C8 109.592
H7 C5 C8 111.255 C8 C10 H11 110.349
C8 C10 H12 111.129 C8 C10 H13 109.996
H9 C8 C10 108.859 H11 C10 H12 108.862
H11 C10 H13 108.034 H12 C10 H13 108.392
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.633 -0.611   -0.609
2 H 0.398 0.366   0.367
3 O -0.620 -0.595   -0.590
4 H 0.394 0.382   0.380
5 C -0.061 0.152   0.127
6 H 0.158 0.061   0.070
7 H 0.126 -0.008   -0.000
8 C 0.137 0.368   0.391
9 H 0.096 -0.049   -0.045
10 C -0.451 -0.315   -0.422
11 H 0.154 0.078   0.106
12 H 0.138 0.052   0.081
13 H 0.164 0.118   0.145


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.536 -1.663 1.528 2.322
CHELPG 0.513 -1.662 1.525 2.313
AIM        
ESP 0.520 -1.655 1.521 2.307


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 132.653
(<r2>)1/2 11.518