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All results from a given calculation for C3H8 (Propane)

using model chemistry: CCD/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCD/6-311G**
 hartrees
Energy at 0K-118.810543
Energy at 298.15K-118.818957
HF Energy-118.295348
Nuclear repulsion energy82.347380
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 CCD/6-311G**
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 3137 2996 51.54      
2 A1 3062 2924 24.38      
3 A1 3055 2918 22.41      
4 A1 1538 1469 3.81      
5 A1 1516 1448 0.09      
6 A1 1450 1385 2.55      
7 A1 1201 1147 0.69      
8 A1 899 858 0.60      
9 A1 370 353 0.01      
10 A2 3124 2984 0.00      
11 A2 1514 1446 0.00      
12 A2 1339 1279 0.00      
13 A2 924 882 0.00      
14 A2 220 210 0.00      
15 B1 3136 2995 100.84      
16 B1 3094 2955 2.69      
17 B1 1531 1463 11.53      
18 B1 1241 1185 0.04      
19 B1 762 728 1.65      
20 B1 284 271 0.00      
21 B2 3134 2993 29.00      
22 B2 3052 2915 32.86      
23 B2 1523 1454 1.37      
24 B2 1441 1377 4.83      
25 B2 1394 1332 1.53      
26 B2 1092 1043 0.33      
27 B2 946 903 1.05      

Unscaled Zero Point Vibrational Energy (zpe) 22988.5 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 21956.3 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 CCD/6-311G**
ABC
0.97661 0.28065 0.24834

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.591
C2 0.000 1.273 -0.261
C3 0.000 -1.273 -0.261
H4 0.880 0.000 1.247
H5 -0.880 0.000 1.247
H6 0.000 2.173 0.363
H7 0.000 -2.173 0.363
H8 0.886 1.309 -0.907
H9 -0.886 1.309 -0.907
H10 -0.886 -1.309 -0.907
H11 0.886 -1.309 -0.907

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.53211.53211.09751.09752.18532.18532.17732.17732.17732.1773
C21.53212.54672.16112.16111.09553.50291.09671.09672.80522.8052
C31.53212.54672.16112.16113.50291.09552.80522.80521.09671.0967
H41.09752.16112.16111.75932.50572.50572.52043.07723.07722.5204
H51.09752.16112.16111.75932.50572.50573.07722.52042.52043.0772
H62.18531.09553.50292.50572.50574.34691.77351.77353.81113.8111
H72.18533.50291.09552.50572.50574.34693.81113.81111.77351.7735
H82.17731.09672.80522.52043.07721.77353.81111.77173.16092.6177
H92.17731.09672.80523.07722.52041.77353.81111.77172.61773.1609
H102.17732.80521.09673.07722.52043.81111.77353.16092.61771.7717
H112.17732.80521.09672.52043.07723.81111.77352.61773.16091.7717

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.457 C1 C2 H8 110.748
C1 C2 H9 110.748 C1 C3 H7 111.457
C1 C3 H10 110.748 C1 C3 H11 110.748
C2 C1 C3 112.425 C2 C1 H4 109.424
C2 C1 H5 109.424 C3 C1 H4 109.424
C3 C1 H5 109.424 H4 C1 H5 106.545
H6 C2 H8 107.997 H6 C2 H9 107.997
H7 C3 H10 107.997 H7 C3 H11 107.997
H8 C2 H9 107.751 H10 C3 H11 107.751
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability