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All results from a given calculation for C2H5Br (Ethyl bromide)

using model chemistry: TPSSh/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/6-311G**
 hartrees
Energy at 0K-2653.289237
Energy at 298.15K 
HF Energy-2653.289237
Nuclear repulsion energy162.950238
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 TPSSh/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3104 3104 35.04 64.58 0.21 0.34
2 A' 3091 3091 0.11 141.80 0.32 0.49
3 A' 3027 3027 22.76 185.96 0.08 0.15
4 A' 1514 1514 2.22 8.76 0.75 0.86
5 A' 1498 1498 0.92 9.79 0.73 0.84
6 A' 1419 1419 3.44 3.75 0.72 0.84
7 A' 1279 1279 64.25 4.09 0.66 0.79
8 A' 1079 1079 0.06 4.23 0.43 0.60
9 A' 971 971 17.60 4.73 0.74 0.85
10 A' 555 555 18.82 19.08 0.26 0.42
11 A' 277 277 2.53 2.51 0.50 0.67
12 A" 3163 3163 14.85 33.41 0.75 0.86
13 A" 3120 3120 10.48 88.85 0.75 0.86
14 A" 1497 1497 8.58 11.16 0.75 0.86
15 A" 1269 1269 0.63 3.07 0.75 0.86
16 A" 1033 1033 0.30 5.44 0.75 0.86
17 A" 770 770 4.52 0.25 0.75 0.86
18 A" 260 260 0.00 0.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14462.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14462.3 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 TPSSh/6-311G**
ABC
1.00459 0.12424 0.11538

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.575 -2.043 0.000
C2 0.600 -1.085 0.000
Br3 0.000 0.800 0.000
H4 1.219 -1.179 0.890
H5 1.219 -1.179 -0.890
H6 -0.196 -3.071 0.000
H7 -1.197 -1.905 0.887
H8 -1.197 -1.905 -0.887

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51642.90042.18122.18121.09641.09181.0918
C21.51641.97821.08831.08832.14052.16582.1658
Br32.90041.97822.48942.48943.87663.08853.0885
H42.18121.08832.48941.78052.52512.52303.0860
H52.18121.08832.48941.78052.52513.08602.5230
H61.09642.14053.87662.52512.52511.77421.7742
H71.09182.16583.08852.52303.08601.77421.7733
H81.09182.16583.08853.08602.52301.77421.7733

picture of Ethyl bromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Br3 111.506 C1 C2 H4 112.698
C1 C2 H5 112.698 C2 C1 H6 108.955
C2 C1 H7 111.236 C2 C1 H8 111.236
Br3 C2 H4 104.795 Br3 C2 H5 104.795
H4 C2 H5 109.778 H6 C1 H7 108.358
H6 C1 H8 108.358 H7 C1 H8 108.611
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.294      
2 C -0.321      
3 Br -0.109      
4 H 0.169      
5 H 0.169      
6 H 0.118      
7 H 0.134      
8 H 0.134      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.488 -2.211 0.000 2.265
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.976 -0.241 0.000
y -0.241 8.034 0.000
z 0.000 0.000 4.530


<r2> (average value of r2) Å2
<r2> 106.712
(<r2>)1/2 10.330