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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-118.473444
Energy at 298.15K-118.481741
HF Energy-118.473444
Nuclear repulsion energy82.732918
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 3073 3015 29.79      
2 A1 2984 2928 38.37      
3 A1 2976 2921 4.23      
4 A1 1477 1450 7.30      
5 A1 1452 1424 0.07      
6 A1 1381 1355 5.71      
7 A1 1152 1131 1.38      
8 A1 899 883 1.91      
9 A1 357 350 0.27      
10 A2 3056 2999 0.00      
11 A2 1447 1420 0.00      
12 A2 1277 1253 0.00      
13 A2 884 868 0.00      
14 A2 224 220 0.00      
15 B1 3063 3005 63.77      
16 B1 3012 2956 4.54      
17 B1 1468 1440 19.81      
18 B1 1176 1154 0.83      
19 B1 736 722 6.63      
20 B1 276 271 0.01      
21 B2 3072 3014 20.15      
22 B2 2981 2925 24.66      
23 B2 1458 1431 3.24      
24 B2 1371 1346 12.60      
25 B2 1324 1300 0.20      
26 B2 1089 1069 0.06      
27 B2 901 884 5.10      

Unscaled Zero Point Vibrational Energy (zpe) 22282.6 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 21865.9 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/6-31G*
ABC
0.97637 0.28723 0.25370

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 0.587
C2 0.000 1.254 -0.257
C3 0.000 -1.254 -0.257
H4 0.882 0.000 1.255
H5 -0.882 0.000 1.255
H6 0.000 2.171 0.356
H7 0.000 -2.171 0.356
H8 0.889 1.289 -0.913
H9 -0.889 1.289 -0.913
H10 -0.889 -1.289 -0.913
H11 0.889 -1.289 -0.913

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7 H8 H9 H10 H11
C11.51171.51171.10681.10682.18342.18342.16822.16822.16822.1682
C21.51172.50802.15372.15371.10333.47961.10521.10522.77232.7723
C31.51172.50802.15372.15373.47961.10332.77232.77231.10521.1052
H41.10682.15372.15371.76462.51022.51022.52243.08223.08222.5224
H51.10682.15372.15371.76462.51022.51023.08222.52242.52243.0822
H62.18341.10333.47962.51022.51024.34231.78311.78313.79103.7910
H72.18343.47961.10332.51022.51024.34233.79103.79101.78311.7831
H82.16821.10522.77232.52243.08221.78313.79101.77793.13122.5775
H92.16821.10522.77233.08222.52241.78313.79101.77792.57753.1312
H102.16822.77231.10523.08222.52243.79101.78313.13122.57751.7779
H112.16822.77231.10522.52243.08223.79101.78312.57753.13121.7779

picture of Propane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 112.281 C1 C2 H8 110.944
C1 C2 H9 110.944 C1 C3 H7 112.281
C1 C3 H10 110.944 C1 C3 H11 110.944
C2 C1 C3 112.099 C2 C1 H4 109.706
C2 C1 H5 109.706 C3 C1 H4 109.706
C3 C1 H5 109.706 H4 C1 H5 105.719
H6 C2 H8 107.678 H6 C2 H9 107.678
H7 C3 H10 107.678 H7 C3 H11 107.678
H8 C2 H9 107.091 H10 C3 H11 107.091
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 -0.303      
2 C -0.525      
3 C -0.525      
4 H 0.164      
5 H 0.164      
6 H 0.172      
7 H 0.172      
8 H 0.170      
9 H 0.170      
10 H 0.170      
11 H 0.170      


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 0.052 0.052
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.202 0.000 0.000
y 0.000 -21.747 0.000
z 0.000 0.000 -21.522
Traceless
 xyz
x 0.433 0.000 0.000
y 0.000 -0.385 0.000
z 0.000 0.000 -0.048
Polar
3z2-r2-0.095
x2-y20.545
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.849 0.000 0.000
y 0.000 5.508 0.000
z 0.000 0.000 4.974


<r2> (average value of r2) Å2
<r2> 62.682
(<r2>)1/2 7.917