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

using model chemistry: MP3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-268.749022
Energy at 298.15K-268.758973
HF Energy-267.962899
Nuclear repulsion energy195.088836
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 MP3/6-31G*
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 3806 3572 23.09      
2 A 3777 3545 47.01      
3 A 3201 3005 16.45      
4 A 3188 2992 30.19      
5 A 3172 2977 18.34      
6 A 3108 2917 15.99      
7 A 3088 2898 35.39      
8 A 3008 2823 67.39      
9 A 1562 1466 2.56      
10 A 1559 1463 2.17      
11 A 1547 1452 6.20      
12 A 1515 1422 28.37      
13 A 1468 1378 33.06      
14 A 1444 1355 22.25      
15 A 1439 1351 12.30      
16 A 1400 1314 48.95      
17 A 1343 1261 49.31      
18 A 1269 1191 16.98      
19 A 1228 1153 15.51      
20 A 1137 1067 31.78      
21 A 1126 1057 9.82      
22 A 1098 1031 108.19      
23 A 982 922 2.29      
24 A 956 898 18.20      
25 A 884 829 11.83      
26 A 556 522 120.05      
27 A 526 494 79.58      
28 A 495 464 4.70      
29 A 374 351 20.57      
30 A 340 319 76.75      
31 A 261 245 3.25      
32 A 237 222 0.43      
33 A 162 152 3.61      

Unscaled Zero Point Vibrational Energy (zpe) 25627.0 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 24053.5 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 MP3/6-31G*
ABC
0.28883 0.12057 0.09342

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.428 1.373 -0.159
H2 0.509 1.630 -0.159
O3 1.939 -0.048 0.008
H4 2.153 -0.162 0.947
C5 0.710 -0.735 -0.243
H6 0.610 -0.773 -1.331
H7 0.739 -1.763 0.142
C8 -0.459 0.044 0.343
H9 -0.347 0.056 1.443
C10 -1.805 -0.558 -0.018
H11 -1.917 -0.590 -1.105
H12 -1.903 -1.572 0.383
H13 -2.609 0.060 0.391

Atom - Atom Distances (Å)
  O1 H2 O3 H4 C5 H6 H7 C8 H9 C10 H11 H12 H13
O10.97212.76573.20002.39692.65653.35971.42022.07442.37542.63923.33772.6039
H20.97212.21102.67162.37532.67613.41491.92482.40333.18803.42244.04573.5341
O32.76572.21100.96931.43002.02182.09822.42342.70123.77874.05004.15034.5649
H43.20002.67160.96931.95602.81892.28342.68942.55884.09324.57844.33124.7993
C52.39692.37531.43001.95601.09361.09871.52292.14182.53172.76902.81473.4712
H62.65652.67612.02182.81891.09361.78002.14823.04962.75742.54343.14513.7440
H73.35973.41492.09822.28341.09871.78002.17822.48682.81953.16002.65963.8197
C81.42021.92482.42342.68941.52292.14822.17821.10551.51762.15062.16762.1498
H92.07442.40332.70122.55882.14183.04962.48681.10552.15263.06172.48882.4937
C102.37543.18803.77874.09322.53172.75742.81951.51762.15261.09411.09491.0927
H112.63923.42244.05004.57842.76902.54343.16002.15063.06171.09411.78331.7720
H123.33774.04574.15034.33122.81473.14512.65962.16762.48881.09491.78331.7778
H132.60393.53414.56494.79933.47123.74403.81972.14982.49371.09271.77201.7778

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 109.016 O1 C8 H9 109.812
O1 C8 C10 107.864 H2 O1 C8 105.617
O3 C5 H6 105.710 O3 C5 H7 111.475
O3 C5 C8 110.269 H4 O3 C5 107.672
C5 C8 H9 108.098 C5 C8 C10 112.742
H6 C5 H7 108.572 H6 C5 C8 109.275
H7 C5 C8 111.349 C8 C10 H11 109.793
C8 C10 H12 111.100 C8 C10 H13 109.815
H9 C8 C10 109.290 H11 C10 H12 109.107
H11 C10 H13 108.253 H12 C10 H13 108.714
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability