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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-118.655208
Energy at 298.15K-118.663682
HF Energy-118.263450
Nuclear repulsion energy82.648017
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 3207 2969 52.45      
2 A1 3132 2900 0.06      
3 A1 3128 2896 45.86      
4 A1 1597 1479 3.78      
5 A1 1577 1460 0.12      
6 A1 1507 1395 2.82      
7 A1 1240 1148 1.12      
8 A1 921 853 0.79      
9 A1 384 355 0.08      
10 A2 3197 2960 0.00      
11 A2 1573 1457 0.00      
12 A2 1379 1277 0.00      
13 A2 952 881 0.00      
14 A2 232 215 0.00      
15 B1 3207 2969 99.04      
16 B1 3161 2926 6.41      
17 B1 1591 1473 11.95      
18 B1 1283 1188 0.12      
19 B1 782 724 2.94      
20 B1 289 268 0.00      
21 B2 3205 2967 28.91      
22 B2 3126 2894 33.07      
23 B2 1580 1463 1.81      
24 B2 1498 1386 5.30      
25 B2 1443 1336 1.59      
26 B2 1119 1036 0.27      
27 B2 976 903 2.09      

Unscaled Zero Point Vibrational Energy (zpe) 23642.2 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 21888.0 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
0.98604 0.28234 0.24993

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 0.587
C2 0.000 1.269 -0.260
C3 0.000 -1.269 -0.260
H4 0.875 0.000 1.243
H5 -0.875 0.000 1.243
H6 0.000 2.165 0.363
H7 0.000 -2.165 0.363
H8 0.882 1.309 -0.903
H9 -0.882 1.309 -0.903
H10 -0.882 -1.309 -0.903
H11 0.882 -1.309 -0.903

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.52581.52581.09361.09362.17692.17692.17072.17072.17072.1707
C21.52582.53872.15302.15301.09153.49091.09241.09242.80012.8001
C31.52582.53872.15302.15303.49091.09152.80012.80011.09241.0924
H41.09362.15302.15301.74952.49562.49562.51423.06703.06702.5142
H51.09362.15302.15301.74952.49562.49563.06702.51422.51423.0670
H62.17691.09153.49092.49562.49564.33091.76501.76503.80203.8020
H72.17693.49091.09152.49562.49564.33093.80203.80201.76501.7650
H82.17071.09242.80012.51423.06701.76503.80201.76353.15692.6184
H92.17071.09242.80013.06702.51421.76503.80201.76352.61843.1569
H102.17072.80011.09243.06702.51423.80201.76503.15692.61841.7635
H112.17072.80011.09242.51423.06703.80201.76502.61843.15691.7635

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.479 C1 C2 H8 110.931
C1 C2 H9 110.931 C1 C3 H7 111.479
C1 C3 H10 110.931 C1 C3 H11 110.931
C2 C1 C3 112.593 C2 C1 H4 109.452
C2 C1 H5 109.452 C3 C1 H4 109.452
C3 C1 H5 109.452 H4 C1 H5 106.241
H6 C2 H8 107.843 H6 C2 H9 107.843
H7 C3 H10 107.843 H7 C3 H11 107.843
H8 C2 H9 107.652 H10 C3 H11 107.652
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability