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All results from a given calculation for C3H8 (Propane)

using model chemistry: CCD/3-21G*

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/3-21G*
 hartrees
Energy at 0K-117.933467
Energy at 298.15K-117.941894
HF Energy-117.611919
Nuclear repulsion energy81.672007
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/3-21G*
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 3101 2966 44.45      
2 A1 3039 2907 17.65      
3 A1 3033 2901 12.47      
4 A1 1590 1521 4.75      
5 A1 1573 1505 0.33      
6 A1 1487 1422 4.03      
7 A1 1217 1164 1.83      
8 A1 854 817 0.79      
9 A1 380 363 0.19      
10 A2 3092 2958 0.00      
11 A2 1574 1506 0.00      
12 A2 1370 1311 0.00      
13 A2 963 921 0.00      
14 A2 231 221 0.00      
15 B1 3106 2971 82.08      
16 B1 3065 2932 0.82      
17 B1 1589 1520 12.06      
18 B1 1271 1216 0.43      
19 B1 775 741 4.28      
20 B1 277 265 0.00      
21 B2 3097 2962 23.98      
22 B2 3030 2899 25.27      
23 B2 1579 1511 2.43      
24 B2 1470 1406 4.20      
25 B2 1416 1355 1.80      
26 B2 1043 998 1.84      
27 B2 965 923 2.50      

Unscaled Zero Point Vibrational Energy (zpe) 23094.5 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 22089.8 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/3-21G*
ABC
0.95317 0.27622 0.24378

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.605
C2 0.000 1.286 -0.268
C3 0.000 -1.286 -0.268
H4 0.886 0.000 1.257
H5 -0.886 0.000 1.257
H6 0.000 2.189 0.358
H7 0.000 -2.189 0.358
H8 0.891 1.309 -0.912
H9 -0.891 1.309 -0.912
H10 -0.891 -1.309 -0.912
H11 0.891 -1.309 -0.912

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.55401.55401.10031.10032.20312.20312.19242.19242.19242.1924
C21.55402.57172.18262.18261.09913.53111.09961.09962.81782.8178
C31.55402.57172.18262.18263.53111.09912.81782.81781.09961.0996
H41.10032.18262.18261.77232.52712.52712.53323.09443.09442.5332
H51.10032.18262.18261.77232.52712.52713.09442.53322.53323.0944
H62.20311.09913.53112.52712.52714.37861.78391.78393.82653.8265
H72.20313.53111.09912.52712.52714.37863.82653.82651.78391.7839
H82.19241.09962.81782.53323.09441.78393.82651.78203.16632.6173
H92.19241.09962.81783.09442.53321.78393.82651.78202.61733.1663
H102.19242.81781.09963.09442.53323.82651.78393.16632.61731.7820
H112.19242.81781.09962.53323.09443.82651.78392.61733.16631.7820

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.121 C1 C2 H8 110.244
C1 C2 H9 110.244 C1 C3 H7 111.121
C1 C3 H10 110.244 C1 C3 H11 110.244
C2 C1 C3 111.677 C2 C1 H4 109.444
C2 C1 H5 109.444 C3 C1 H4 109.444
C3 C1 H5 109.444 H4 C1 H5 107.286
H6 C2 H8 108.454 H6 C2 H9 108.454
H7 C3 H10 108.454 H7 C3 H11 108.454
H8 C2 H9 108.245 H10 C3 H11 108.245
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability