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

using model chemistry: wB97X-D/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 wB97X-D/6-311G**
 hartrees
Energy at 0K-2653.399124
Energy at 298.15K 
HF Energy-2653.399124
Nuclear repulsion energy163.832576
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 wB97X-D/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' 3128 2992 26.22 76.63 0.53 0.69
2 A' 3110 2975 5.71 123.19 0.19 0.33
3 A' 3049 2917 18.95 156.42 0.04 0.08
4 A' 1504 1439 3.07 9.30 0.75 0.86
5 A' 1493 1428 1.99 9.02 0.71 0.83
6 A' 1421 1359 6.78 3.21 0.75 0.86
7 A' 1299 1242 56.65 3.59 0.65 0.79
8 A' 1090 1043 0.26 3.90 0.39 0.56
9 A' 989 946 16.50 4.70 0.74 0.85
10 A' 590 565 15.58 18.87 0.26 0.42
11 A' 294 281 1.94 2.29 0.50 0.67
12 A" 3180 3041 11.78 31.54 0.75 0.86
13 A" 3141 3004 8.50 86.66 0.75 0.86
14 A" 1491 1426 10.41 10.96 0.75 0.86
15 A" 1274 1219 0.85 3.52 0.75 0.86
16 A" 1050 1004 0.20 4.83 0.75 0.86
17 A" 782 748 5.23 0.23 0.75 0.86
18 A" 263 252 0.00 0.06 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14574.3 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 13940.3 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 wB97X-D/6-311G**
ABC
1.01415 0.12557 0.11663

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.572 -2.035 0.000
C2 0.596 -1.070 0.000
Br3 0.000 0.796 0.000
H4 1.217 -1.176 0.887
H5 1.217 -1.176 -0.887
H6 -0.190 -3.061 0.000
H7 -1.195 -1.901 0.886
H8 -1.195 -1.901 -0.886

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51462.88772.17332.17331.09441.09141.0914
C21.51461.95841.08821.08822.14002.16402.1640
Br32.88771.95842.48142.48143.86083.07973.0797
H42.17331.08822.48141.77432.51312.51883.0801
H52.17331.08822.48141.77432.51313.08012.5188
H61.09442.14003.86082.51312.51311.77211.7721
H71.09142.16403.07972.51883.08011.77211.7710
H81.09142.16403.07973.08012.51881.77211.7710

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 111.864 C1 C2 H4 112.186
C1 C2 H5 112.186 C2 C1 H6 109.155
C2 C1 H7 111.241 C2 C1 H8 111.241
Br3 C2 H4 105.481 Br3 C2 H5 105.481
H4 C2 H5 109.216 H6 C1 H7 108.331
H6 C1 H8 108.331 H7 C1 H8 108.453
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.319      
2 C -0.337      
3 Br -0.092      
4 H 0.172      
5 H 0.172      
6 H 0.126      
7 H 0.139      
8 H 0.139      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.481 -2.124 0.000 2.178
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.882 -1.032 0.000
y -1.032 -29.927 0.000
z 0.000 0.000 -32.188
Traceless
 xyz
x -0.824 -1.032 0.000
y -1.032 2.108 0.000
z 0.000 0.000 -1.284
Polar
3z2-r2-2.568
x2-y2-1.955
xy-1.032
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.943 -0.273 0.000
y -0.273 7.828 0.000
z 0.000 0.000 4.530


<r2> (average value of r2) Å2
<r2> 105.889
(<r2>)1/2 10.290