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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-118.504697
Energy at 298.15K-118.513157
HF Energy-118.215130
Nuclear repulsion energy81.929469
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 3146 2950 60.55      
2 A1 3075 2884 1.84      
3 A1 3065 2875 47.82      
4 A1 1595 1495 4.96      
5 A1 1578 1480 0.05      
6 A1 1511 1417 3.26      
7 A1 1241 1164 1.44      
8 A1 897 841 0.76      
9 A1 384 360 0.10      
10 A2 3134 2940 0.00      
11 A2 1574 1476 0.00      
12 A2 1375 1289 0.00      
13 A2 963 903 0.00      
14 A2 225 211 0.00      
15 B1 3146 2950 114.05      
16 B1 3095 2902 7.10      
17 B1 1588 1489 12.42      
18 B1 1295 1214 0.15      
19 B1 787 738 3.35      
20 B1 277 260 0.00      
21 B2 3143 2947 33.06      
22 B2 3066 2876 36.84      
23 B2 1579 1481 2.70      
24 B2 1492 1400 4.30      
25 B2 1449 1359 2.65      
26 B2 1100 1032 0.88      
27 B2 981 920 2.28      

Unscaled Zero Point Vibrational Energy (zpe) 23380.7 cm-1
Scaled (by 0.9378) Zero Point Vibrational Energy (zpe) 21926.4 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
0.97149 0.27637 0.24476

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 0.592
C2 0.000 1.285 -0.263
C3 0.000 -1.285 -0.263
H4 0.880 0.000 1.251
H5 -0.880 0.000 1.251
H6 0.000 2.183 0.367
H7 0.000 -2.183 0.367
H8 0.887 1.323 -0.909
H9 -0.887 1.323 -0.909
H10 -0.887 -1.323 -0.909
H11 0.887 -1.323 -0.909

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.54311.54311.09951.09952.19442.19442.18842.18842.18842.1884
C21.54312.56912.17172.17171.09713.52411.09811.09812.82892.8289
C31.54312.56912.17172.17173.52411.09712.82892.82891.09811.0981
H41.09952.17172.17171.76082.51412.51412.53233.08833.08832.5323
H51.09952.17172.17171.76082.51412.51413.08832.53232.53233.0883
H62.19441.09713.52412.51412.51414.36561.77601.77603.83453.8345
H72.19443.52411.09712.51412.51414.36563.83453.83451.77601.7760
H82.18841.09812.82892.53233.08831.77603.83451.77483.18572.6455
H92.18841.09812.82893.08832.53231.77603.83451.77482.64553.1857
H102.18842.82891.09813.08832.53233.83451.77603.18572.64551.7748
H112.18842.82891.09812.53233.08833.83451.77602.64553.18571.7748

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 111.310 C1 C2 H8 110.779
C1 C2 H9 110.779 C1 C3 H7 111.310
C1 C3 H10 110.779 C1 C3 H11 110.779
C2 C1 C3 112.702 C2 C1 H4 109.385
C2 C1 H5 109.385 C3 C1 H4 109.385
C3 C1 H5 109.385 H4 C1 H5 106.403
H6 C2 H8 108.006 H6 C2 H9 108.006
H7 C3 H10 108.006 H7 C3 H11 108.006
H8 C2 H9 107.827 H10 C3 H11 107.827
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability