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

using model chemistry: B97D3/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/6-311G**
 hartrees
Energy at 0K-2654.647371
Energy at 298.15K 
HF Energy-2654.647371
Nuclear repulsion energy161.940735
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 B97D3/6-311G**
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' 3055 3011 37.69 62.98 0.31 0.47
2 A' 3041 2997 0.72 146.51 0.28 0.43
3 A' 2977 2934 24.82 203.48 0.09 0.17
4 A' 1475 1454 2.45 8.99 0.75 0.86
5 A' 1460 1439 0.84 9.72 0.73 0.85
6 A' 1385 1365 4.30 4.66 0.71 0.83
7 A' 1249 1231 61.88 4.86 0.64 0.78
8 A' 1058 1043 0.09 4.08 0.49 0.66
9 A' 952 939 20.34 4.78 0.71 0.83
10 A' 525 517 18.86 18.89 0.26 0.42
11 A' 279 275 3.07 3.07 0.48 0.65
12 A" 3113 3069 18.56 30.68 0.75 0.86
13 A" 3072 3028 10.12 94.14 0.75 0.86
14 A" 1457 1436 8.97 11.11 0.75 0.86
15 A" 1240 1222 0.76 2.73 0.75 0.86
16 A" 1012 997 0.21 5.82 0.75 0.86
17 A" 765 754 4.98 0.27 0.75 0.86
18 A" 260 256 0.00 0.09 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14187.1 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 13984.2 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 B97D3/6-311G**
ABC
0.99979 0.12252 0.11386

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.576 -2.054 0.000
C2 0.601 -1.098 0.000
Br3 0.000 0.806 0.000
H4 1.223 -1.191 0.893
H5 1.223 -1.191 -0.893
H6 -0.197 -3.087 0.000
H7 -1.200 -1.918 0.889
H8 -1.200 -1.918 -0.889

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51702.91812.18572.18571.09991.09501.0950
C21.51701.99641.09191.09192.14412.17002.1700
Br32.91811.99642.50612.50613.89853.10663.1066
H42.18571.09192.50611.78592.53182.52973.0943
H52.18571.09192.50611.78592.53183.09432.5297
H61.09992.14413.89852.53182.53181.77881.7788
H71.09502.17003.10662.52973.09431.77881.7778
H81.09502.17003.10663.09432.52971.77881.7778

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 111.584 C1 C2 H4 112.804
C1 C2 H5 112.804 C2 C1 H6 108.995
C2 C1 H7 111.336 C2 C1 H8 111.336
Br3 C2 H4 104.652 Br3 C2 H5 104.652
H4 C2 H5 109.737 H6 C1 H7 108.271
H6 C1 H8 108.271 H7 C1 H8 108.535
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.293      
2 C -0.312      
3 Br -0.108      
4 H 0.166      
5 H 0.166      
6 H 0.118      
7 H 0.132      
8 H 0.132      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.471 -2.194 0.000 2.244
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.841 -0.985 0.000
y -0.985 -29.807 0.000
z 0.000 0.000 -32.162
Traceless
 xyz
x -0.857 -0.985 0.000
y -0.985 2.195 0.000
z 0.000 0.000 -1.338
Polar
3z2-r2-2.676
x2-y2-2.034
xy-0.985
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.069 -0.223 0.000
y -0.223 8.249 0.000
z 0.000 0.000 4.612


<r2> (average value of r2) Å2
<r2> 107.799
(<r2>)1/2 10.383