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

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-268.716309
Energy at 298.15K-268.726277
HF Energy-267.962062
Nuclear repulsion energy195.138006
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 MP2/6-31G*
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 3758 3544 27.36      
2 A 3709 3498 54.44      
3 A 3215 3032 14.00      
4 A 3204 3021 24.12      
5 A 3186 3004 18.07      
6 A 3112 2935 14.36      
7 A 3091 2915 36.17      
8 A 3008 2837 69.13      
9 A 1565 1475 3.20      
10 A 1557 1468 2.55      
11 A 1549 1461 4.00      
12 A 1500 1415 28.18      
13 A 1462 1378 25.54      
14 A 1433 1351 18.29      
15 A 1425 1344 16.99      
16 A 1388 1309 40.99      
17 A 1335 1259 50.68      
18 A 1263 1191 16.30      
19 A 1214 1145 13.15      
20 A 1126 1062 38.34      
21 A 1119 1055 10.01      
22 A 1076 1015 108.89      
23 A 977 921 2.96      
24 A 951 897 19.29      
25 A 880 830 13.28      
26 A 569 536 167.68      
27 A 532 501 26.45      
28 A 496 468 5.90      
29 A 372 351 25.95      
30 A 349 329 70.63      
31 A 260 245 3.19      
32 A 241 227 0.42      
33 A 165 155 3.81      

Unscaled Zero Point Vibrational Energy (zpe) 25541.1 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 24085.3 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 MP2/6-31G*
ABC
0.28947 0.12079 0.09362

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.419 1.372 -0.155
H2 0.530 1.600 -0.185
O3 1.935 -0.049 0.008
H4 2.135 -0.152 0.954
C5 0.704 -0.738 -0.243
H6 0.603 -0.772 -1.331
H7 0.729 -1.767 0.142
C8 -0.460 0.043 0.346
H9 -0.350 0.045 1.447
C10 -1.803 -0.549 -0.020
H11 -1.911 -0.580 -1.108
H12 -1.906 -1.563 0.380
H13 -2.604 0.071 0.387

Atom - Atom Distances (Å)
  O1 H2 O3 H4 C5 H6 H7 C8 H9 C10 H11 H12 H13
O10.97652.75493.17432.39222.65003.35571.42112.08162.37222.63513.33362.6002
H20.97652.17532.63512.34552.63493.38881.92002.42003.17683.40024.03223.5338
O32.75492.17530.97301.43312.02172.10322.42062.70213.77164.03934.14554.5566
H43.17432.63510.97301.95562.81982.29012.67202.54054.07614.56084.31854.7778
C52.39222.34551.43311.95561.09291.09861.52042.13962.52372.75832.80693.4631
H62.65002.63492.02172.81981.09291.78172.14603.04772.74862.53073.13783.7343
H73.35573.38882.10322.29011.09861.78172.17532.47992.81423.15252.65373.8142
C81.42111.92002.42062.67201.52042.14602.17531.10601.51332.14652.16162.1448
H92.08162.42002.70212.54052.13963.04772.47991.10602.14893.05822.47912.4911
C102.37223.17683.77164.07612.52372.74862.81421.51332.14891.09321.09421.0921
H112.63513.40024.03934.56082.75832.53073.15252.14653.05821.09321.78281.7717
H123.33364.03224.14554.31852.80693.13782.65372.16162.47911.09421.78281.7768
H132.60023.53384.55664.77783.46313.73433.81422.14482.49111.09211.77171.7768

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 108.784 O1 C8 H9 110.292
O1 C8 C10 107.842 H2 O1 C8 104.894
O3 C5 H6 105.540 O3 C5 H7 111.673
O3 C5 C8 110.047 H4 O3 C5 107.188
C5 C8 H9 108.070 C5 C8 C10 112.588
H6 C5 H7 108.776 H6 C5 C8 109.314
H7 C5 C8 111.300 C8 C10 H11 109.831
C8 C10 H12 110.967 C8 C10 H13 109.754
H9 C8 C10 109.266 H11 C10 H12 109.183
H11 C10 H13 108.334 H12 C10 H13 108.720
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability