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All results from a given calculation for C3H8 (Propane)

using model chemistry: LSDA/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at LSDA/6-31+G**
 hartrees
Energy at 0K-118.487351
Energy at 298.15K-118.495634
HF Energy-118.487351
Nuclear repulsion energy82.697281
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 LSDA/6-31+G**
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 3064 3018 30.48      
2 A1 2974 2929 50.33      
3 A1 2968 2924 0.01      
4 A1 1448 1426 11.02      
5 A1 1426 1405 0.01      
6 A1 1356 1336 8.19      
7 A1 1137 1120 1.10      
8 A1 890 877 1.94      
9 A1 357 352 0.11      
10 A2 3047 3001 0.00      
11 A2 1420 1398 0.00      
12 A2 1258 1239 0.00      
13 A2 874 861 0.00      
14 A2 220 217 0.00      
15 B1 3053 3007 65.24      
16 B1 3006 2961 3.76      
17 B1 1440 1418 26.39      
18 B1 1159 1142 0.60      
19 B1 730 719 5.69      
20 B1 274 270 0.00      
21 B2 3063 3017 20.49      
22 B2 2970 2925 32.29      
23 B2 1429 1408 4.65      
24 B2 1348 1328 15.91      
25 B2 1303 1283 0.00      
26 B2 1081 1065 0.31      
27 B2 890 877 4.30      

Unscaled Zero Point Vibrational Energy (zpe) 22092.3 cm-1
Scaled (by 0.985) Zero Point Vibrational Energy (zpe) 21760.9 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 LSDA/6-31+G**
ABC
0.97708 0.28662 0.25327

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.586
C2 0.000 1.255 -0.257
C3 0.000 -1.255 -0.257
H4 0.882 0.000 1.255
H5 -0.882 0.000 1.255
H6 0.000 2.173 0.356
H7 0.000 -2.173 0.356
H8 0.889 1.291 -0.913
H9 -0.889 1.291 -0.913
H10 -0.889 -1.291 -0.913
H11 0.889 -1.291 -0.913

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.51271.51271.10671.10672.18482.18482.16912.16912.16912.1691
C21.51272.51102.15412.15411.10313.48241.10511.10512.77572.7757
C31.51272.51102.15412.15413.48241.10312.77572.77571.10511.1051
H41.10672.15412.15411.76452.51122.51122.52283.08243.08242.5228
H51.10672.15412.15411.76452.51122.51123.08242.52282.52283.0824
H62.18481.10313.48242.51122.51124.34511.78241.78243.79423.7942
H72.18483.48241.10312.51122.51124.34513.79423.79421.78241.7824
H82.16911.10512.77572.52283.08241.78243.79421.77783.13482.5819
H92.16911.10512.77573.08242.52281.78243.79421.77782.58193.1348
H102.16912.77571.10513.08242.52283.79421.78243.13482.58191.7778
H112.16912.77571.10512.52283.08243.79421.78242.58193.13481.7778

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 112.335 C1 C2 H8 110.952
C1 C2 H9 110.952 C1 C3 H7 112.335
C1 C3 H10 110.952 C1 C3 H11 110.952
C2 C1 C3 112.194 C2 C1 H4 109.678
C2 C1 H5 109.678 C3 C1 H4 109.678
C3 C1 H5 109.678 H4 C1 H5 105.731
H6 C2 H8 107.639 H6 C2 H9 107.639
H7 C3 H10 107.639 H7 C3 H11 107.639
H8 C2 H9 107.095 H10 C3 H11 107.095
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.255      
2 C -0.600      
3 C -0.600      
4 H 0.181      
5 H 0.181      
6 H 0.183      
7 H 0.183      
8 H 0.182      
9 H 0.182      
10 H 0.182      
11 H 0.182      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.090 0.090
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.767 0.000 0.000
y 0.000 -22.476 0.000
z 0.000 0.000 -22.247
Traceless
 xyz
x 0.594 0.000 0.000
y 0.000 -0.469 0.000
z 0.000 0.000 -0.125
Polar
3z2-r2-0.250
x2-y20.709
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.377 0.000 0.000
y 0.000 6.282 0.000
z 0.000 0.000 5.725


<r2> (average value of r2) Å2
<r2> 63.174
(<r2>)1/2 7.948