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All results from a given calculation for C3H8 (Propane)

using model chemistry: QCISD/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 QCISD/6-31G*
 hartrees
Energy at 0K-118.705552
Energy at 298.15K-118.713976
HF Energy-118.262900
Nuclear repulsion energy82.340167
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/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 3137 2987 50.93      
2 A1 3060 2914 3.66      
3 A1 3057 2911 41.33      
4 A1 1564 1490 3.62      
5 A1 1544 1470 0.11      
6 A1 1474 1403 2.65      
7 A1 1214 1156 1.03      
8 A1 905 861 0.79      
9 A1 377 359 0.08      
10 A2 3126 2977 0.00      
11 A2 1541 1467 0.00      
12 A2 1350 1285 0.00      
13 A2 933 889 0.00      
14 A2 230 219 0.00      
15 B1 3136 2986 95.90      
16 B1 3089 2941 7.14      
17 B1 1557 1483 11.49      
18 B1 1258 1198 0.12      
19 B1 767 731 2.87      
20 B1 285 271 0.00      
21 B2 3134 2984 28.24      
22 B2 3056 2910 32.22      
23 B2 1547 1474 1.85      
24 B2 1463 1393 5.05      
25 B2 1411 1344 1.64      
26 B2 1100 1048 0.25      
27 B2 955 909 2.05      

Unscaled Zero Point Vibrational Energy (zpe) 23133.1 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 22029.7 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/6-31G*
ABC
0.97766 0.28069 0.24847

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.589
C2 0.000 1.273 -0.261
C3 0.000 -1.273 -0.261
H4 0.880 0.000 1.248
H5 -0.880 0.000 1.248
H6 0.000 2.174 0.367
H7 0.000 -2.174 0.367
H8 0.887 1.312 -0.908
H9 -0.887 1.312 -0.908
H10 -0.887 -1.312 -0.908
H11 0.887 -1.312 -0.908

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.53061.53061.09951.09952.18482.18482.17892.17892.17892.1789
C21.53062.54662.16142.16141.09763.50361.09831.09832.80912.8091
C31.53062.54662.16142.16143.50361.09762.80912.80911.09831.0983
H41.09952.16142.16141.76022.50492.50492.52333.08053.08052.5233
H51.09952.16142.16141.76022.50492.50493.08052.52332.52333.0805
H62.18481.09763.50362.50492.50494.34711.77561.77563.81623.8162
H72.18483.50361.09762.50492.50494.34713.81623.81621.77561.7756
H82.17891.09832.80912.52333.08051.77563.81621.77393.16812.6249
H92.17891.09832.80913.08052.52331.77563.81621.77392.62493.1681
H102.17892.80911.09833.08052.52333.81621.77563.16812.62491.7739
H112.17892.80911.09832.52333.08053.81621.77562.62493.16811.7739

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.397 C1 C2 H8 110.878
C1 C2 H9 110.878 C1 C3 H7 111.397
C1 C3 H10 110.878 C1 C3 H11 110.878
C2 C1 C3 112.585 C2 C1 H4 109.430
C2 C1 H5 109.430 C3 C1 H4 109.430
C3 C1 H5 109.430 H4 C1 H5 106.343
H6 C2 H8 107.912 H6 C2 H9 107.912
H7 C3 H10 107.912 H7 C3 H11 107.912
H8 C2 H9 107.713 H10 C3 H11 107.713
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability