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All results from a given calculation for C3H8 (Propane)

using model chemistry: CISD/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 CISD/6-31G**
 hartrees
Energy at 0K-118.713587
Energy at 298.15K-118.722077
HF Energy-118.276128
Nuclear repulsion energy82.870364
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 CISD/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 3243 2976 54.29      
2 A1 3162 2902 8.76      
3 A1 3159 2899 39.13      
4 A1 1601 1469 2.44      
5 A1 1578 1448 0.05      
6 A1 1510 1385 1.64      
7 A1 1243 1140 0.77      
8 A1 922 846 0.56      
9 A1 382 351 0.03      
10 A2 3232 2966 0.00      
11 A2 1578 1448 0.00      
12 A2 1385 1271 0.00      
13 A2 953 874 0.00      
14 A2 233 214 0.00      
15 B1 3242 2975 103.65      
16 B1 3197 2933 6.29      
17 B1 1595 1464 9.35      
18 B1 1286 1180 0.04      
19 B1 782 717 2.02      
20 B1 291 267 0.00      
21 B2 3241 2974 30.03      
22 B2 3156 2896 34.49      
23 B2 1585 1455 1.16      
24 B2 1500 1376 3.47      
25 B2 1446 1327 2.76      
26 B2 1120 1027 0.21      
27 B2 978 897 1.40      

Unscaled Zero Point Vibrational Energy (zpe) 23799.0 cm-1
Scaled (by 0.9176) Zero Point Vibrational Energy (zpe) 21838.0 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 CISD/6-31G**
ABC
0.99261 0.28328 0.25077

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.586
C2 0.000 1.268 -0.259
C3 0.000 -1.268 -0.259
H4 0.871 0.000 1.239
H5 -0.871 0.000 1.239
H6 0.000 2.159 0.361
H7 0.000 -2.159 0.361
H8 0.878 1.307 -0.900
H9 -0.878 1.307 -0.900
H10 -0.878 -1.307 -0.900
H11 0.878 -1.307 -0.900

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.52381.52381.08861.08862.17102.17102.16482.16482.16482.1648
C21.52382.53592.14722.14721.08623.48311.08731.08732.79512.7951
C31.52382.53592.14722.14723.48311.08622.79512.79511.08731.0873
H41.08862.14722.14721.74202.48822.48822.50653.05623.05622.5065
H51.08862.14722.14721.74202.48822.48823.05622.50652.50653.0562
H62.17101.08623.48312.48822.48824.31871.75701.75703.79203.7920
H72.17103.48311.08622.48822.48824.31873.79203.79201.75701.7570
H82.16481.08732.79512.50653.05621.75703.79201.75543.14932.6147
H92.16481.08732.79513.05622.50651.75703.79201.75542.61473.1493
H102.16482.79511.08733.05622.50653.79201.75703.14932.61471.7554
H112.16482.79511.08732.50653.05623.79201.75702.61473.14931.7554

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.465 C1 C2 H8 110.906
C1 C2 H9 110.906 C1 C3 H7 111.465
C1 C3 H10 110.906 C1 C3 H11 110.906
C2 C1 C3 112.632 C2 C1 H4 109.432
C2 C1 H5 109.432 C3 C1 H4 109.432
C3 C1 H5 109.432 H4 C1 H5 106.282
H6 C2 H8 107.871 H6 C2 H9 107.871
H7 C3 H10 107.871 H7 C3 H11 107.871
H8 C2 H9 107.663 H10 C3 H11 107.663
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability