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All results from a given calculation for C3H8 (Propane)

using model chemistry: LSDA/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 LSDA/6-31G
 hartrees
Energy at 0K-118.445406
Energy at 298.15K-118.453755
HF Energy-118.445406
Nuclear repulsion energy82.542239
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/6-31G
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 3078 3015 35.90      
2 A1 2978 2918 41.87      
3 A1 2973 2913 5.94      
4 A1 1496 1465 11.97      
5 A1 1476 1446 0.12      
6 A1 1404 1375 8.05      
7 A1 1172 1148 2.36      
8 A1 905 886 2.24      
9 A1 368 360 0.39      
10 A2 3059 2997 0.00      
11 A2 1468 1438 0.00      
12 A2 1290 1263 0.00      
13 A2 910 891 0.00      
14 A2 220 216 0.00      
15 B1 3069 3006 76.27      
16 B1 3011 2950 4.90      
17 B1 1486 1456 24.53      
18 B1 1200 1176 1.29      
19 B1 756 741 8.71      
20 B1 271 266 0.01      
21 B2 3075 3013 23.80      
22 B2 2976 2916 28.57      
23 B2 1476 1446 5.76      
24 B2 1387 1358 16.76      
25 B2 1349 1321 1.52      
26 B2 1106 1084 0.55      
27 B2 925 906 6.93      

Unscaled Zero Point Vibrational Energy (zpe) 22440.8 cm-1
Scaled (by 0.9797) Zero Point Vibrational Energy (zpe) 21985.2 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/6-31G
ABC
0.97144 0.28569 0.25230

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/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 1.258 -0.259
C3 0.000 -1.258 -0.259
H4 0.884 0.000 1.258
H5 -0.884 0.000 1.258
H6 0.000 2.175 0.355
H7 0.000 -2.175 0.355
H8 0.890 1.290 -0.914
H9 -0.890 1.290 -0.914
H10 -0.890 -1.290 -0.914
H11 0.890 -1.290 -0.914

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.51731.51731.10821.10822.18792.18792.17192.17192.17192.1719
C21.51732.51622.15952.15951.10403.48801.10611.10612.77762.7776
C31.51732.51622.15952.15953.48801.10402.77762.77761.10611.1061
H41.10822.15952.15951.76812.51552.51552.52583.08693.08692.5258
H51.10822.15952.15951.76812.51552.51553.08692.52582.52583.0869
H62.18791.10403.48802.51552.51554.35081.78571.78573.79653.7965
H72.18793.48801.10402.51552.51554.35083.79653.79651.78571.7857
H82.17191.10612.77762.52583.08691.78573.79651.78103.13502.5800
H92.17191.10612.77763.08692.52581.78573.79651.78102.58003.1350
H102.17192.77761.10613.08692.52583.79651.78573.13502.58001.7810
H112.17192.77761.10612.52583.08693.79651.78572.58003.13501.7810

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 112.206 C1 C2 H8 110.798
C1 C2 H9 110.798 C1 C3 H7 112.206
C1 C3 H10 110.798 C1 C3 H11 110.798
C2 C1 C3 112.030 C2 C1 H4 109.697
C2 C1 H5 109.697 C3 C1 H4 109.697
C3 C1 H5 109.697 H4 C1 H5 105.833
H6 C2 H8 107.799 H6 C2 H9 107.799
H7 C3 H10 107.799 H7 C3 H11 107.799
H8 C2 H9 107.240 H10 C3 H11 107.240
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.301      
2 C -0.493      
3 C -0.493      
4 H 0.159      
5 H 0.159      
6 H 0.162      
7 H 0.162      
8 H 0.161      
9 H 0.161      
10 H 0.161      
11 H 0.161      


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 0.041 0.041
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.340 0.000 0.000
y 0.000 -21.738 0.000
z 0.000 0.000 -21.598
Traceless
 xyz
x 0.328 0.000 0.000
y 0.000 -0.269 0.000
z 0.000 0.000 -0.059
Polar
3z2-r2-0.118
x2-y20.398
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.828 0.000 0.000
y 0.000 5.389 0.000
z 0.000 0.000 4.919


<r2> (average value of r2) Å2
<r2> 62.960
(<r2>)1/2 7.935