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All results from a given calculation for C3H8 (Propane)

using model chemistry: QCISD/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD/cc-pVTZ
 hartrees
Energy at 0K-118.893760
Energy at 298.15K-118.902153
HF Energy-118.307772
Nuclear repulsion energy82.679241
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 QCISD/cc-pVTZ
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 3122 2983 48.16      
2 A1 3051 2915 23.02      
3 A1 3046 2910 21.87      
4 A1 1532 1464 4.07      
5 A1 1510 1443 0.01      
6 A1 1437 1373 2.70      
7 A1 1194 1141 0.73      
8 A1 894 854 0.65      
9 A1 367 350 0.03      
10 A2 3109 2970 0.00      
11 A2 1510 1443 0.00      
12 A2 1333 1273 0.00      
13 A2 916 876 0.00      
14 A2 218 209 0.00      
15 B1 3120 2981 92.83      
16 B1 3077 2940 2.53      
17 B1 1527 1459 11.59      
18 B1 1231 1176 0.06      
19 B1 756 722 2.08      
20 B1 276 264 0.00      
21 B2 3119 2980 28.76      
22 B2 3043 2908 31.87      
23 B2 1517 1449 1.53      
24 B2 1425 1362 4.20      
25 B2 1384 1323 1.69      
26 B2 1084 1036 0.47      
27 B2 940 898 1.19      

Unscaled Zero Point Vibrational Energy (zpe) 22867.3 cm-1
Scaled (by 0.9555) Zero Point Vibrational Energy (zpe) 21849.7 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 QCISD/cc-pVTZ
ABC
0.98286 0.28315 0.25033

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.589
C2 0.000 1.268 -0.261
C3 0.000 -1.268 -0.261
H4 0.875 0.000 1.243
H5 -0.875 0.000 1.243
H6 0.000 2.165 0.360
H7 0.000 -2.165 0.360
H8 0.881 1.305 -0.904
H9 -0.881 1.305 -0.904
H10 -0.881 -1.305 -0.904
H11 0.881 -1.305 -0.904

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.52621.52621.09251.09252.17662.17662.16992.16992.16992.1699
C21.52622.53562.15282.15281.09073.48811.09181.09182.79452.7945
C31.52622.53562.15282.15283.48811.09072.79452.79451.09181.0918
H41.09252.15282.15281.75022.49612.49612.51253.06553.06552.5125
H51.09252.15282.15281.75022.49612.49613.06552.51252.51253.0655
H62.17661.09073.48812.49612.49614.32911.76471.76473.79623.7962
H72.17663.48811.09072.49612.49614.32913.79623.79621.76471.7647
H82.16991.09182.79452.51253.06551.76473.79621.76263.14912.6096
H92.16991.09182.79453.06552.51251.76473.79621.76262.60963.1491
H102.16992.79451.09183.06552.51253.79621.76473.14912.60961.7626
H112.16992.79451.09182.51253.06553.79621.76472.60963.14911.7626

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.472 C1 C2 H8 110.869
C1 C2 H9 110.869 C1 C3 H7 111.472
C1 C3 H10 110.869 C1 C3 H11 110.869
C2 C1 C3 112.337 C2 C1 H4 109.470
C2 C1 H5 109.470 C3 C1 H4 109.470
C3 C1 H5 109.470 H4 C1 H5 106.452
H6 C2 H8 107.912 H6 C2 H9 107.912
H7 C3 H10 107.912 H7 C3 H11 107.912
H8 C2 H9 107.651 H10 C3 H11 107.651
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability