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All results from a given calculation for C3H8 (Propane)

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 C2V 1A1
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-118.696081
Energy at 298.15K-118.704522
HF Energy-118.263201
Nuclear repulsion energy82.470938
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 A1 3178 2982 45.38      
2 A1 3097 2907 34.44      
3 A1 3096 2906 7.64      
4 A1 1575 1478 4.28      
5 A1 1555 1459 0.11      
6 A1 1483 1391 3.14      
7 A1 1221 1146 1.17      
8 A1 912 856 0.89      
9 A1 379 356 0.09      
10 A2 3168 2973 0.00      
11 A2 1551 1456 0.00      
12 A2 1358 1275 0.00      
13 A2 939 881 0.00      
14 A2 231 217 0.00      
15 B1 3176 2981 87.24      
16 B1 3130 2938 6.24      
17 B1 1568 1472 12.76      
18 B1 1266 1188 0.15      
19 B1 772 724 3.25      
20 B1 286 269 0.00      
21 B2 3175 2980 25.32      
22 B2 3094 2904 29.16      
23 B2 1558 1462 2.13      
24 B2 1473 1382 6.00      
25 B2 1420 1332 1.30      
26 B2 1109 1041 0.24      
27 B2 960 901 2.31      

Unscaled Zero Point Vibrational Energy (zpe) 23364.0 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 21929.5 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
0.98094 0.28138 0.24907

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.588
C2 0.000 1.271 -0.261
C3 0.000 -1.271 -0.261
H4 0.878 0.000 1.246
H5 -0.878 0.000 1.246
H6 0.000 2.170 0.365
H7 0.000 -2.170 0.365
H8 0.885 1.310 -0.906
H9 -0.885 1.310 -0.906
H10 -0.885 -1.310 -0.906
H11 0.885 -1.310 -0.906

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.52871.52871.09671.09672.18132.18132.17452.17452.17452.1745
C21.52872.54302.15782.15781.09453.49771.09541.09542.80362.8036
C31.52872.54302.15782.15783.49771.09452.80362.80361.09541.0954
H41.09672.15782.15781.75522.50102.50102.51873.07393.07392.5187
H51.09672.15782.15781.75522.50102.50103.07392.51872.51873.0739
H62.18131.09453.49772.50102.50104.33971.77101.77103.80823.8082
H72.18133.49771.09452.50102.50104.33973.80823.80821.77101.7710
H82.17451.09542.80362.51873.07391.77103.80821.76913.16052.6190
H92.17451.09542.80363.07392.51871.77103.80821.76912.61903.1605
H102.17452.80361.09543.07392.51873.80821.77103.16052.61901.7691
H112.17452.80361.09542.51873.07393.80821.77102.61903.16051.7691

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.442 C1 C2 H8 110.841
C1 C2 H9 110.841 C1 C3 H7 111.442
C1 C3 H10 110.841 C1 C3 H11 110.841
C2 C1 C3 112.559 C2 C1 H4 109.448
C2 C1 H5 109.448 C3 C1 H4 109.448
C3 C1 H5 109.448 H4 C1 H5 106.297
H6 C2 H8 107.934 H6 C2 H9 107.934
H7 C3 H10 107.934 H7 C3 H11 107.934
H8 C2 H9 107.699 H10 C3 H11 107.699
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability