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

using model chemistry: wB97X-D/aug-cc-pVQZ

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/aug-cc-pVQZ
 hartrees
Energy at 0K-2653.504027
Energy at 298.15K 
HF Energy-2653.504027
Nuclear repulsion energy164.329123
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/aug-cc-pVQZ
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 3128 21.82 73.57 0.48 0.65
2 A' 3111 3111 3.60 120.35 0.14 0.24
3 A' 3051 3051 17.32 195.55 0.04 0.07
4 A' 1503 1503 2.67 3.25 0.75 0.86
5 A' 1493 1493 1.99 4.87 0.70 0.82
6 A' 1421 1421 6.13 1.24 0.55 0.71
7 A' 1293 1293 47.39 6.62 0.25 0.40
8 A' 1089 1089 0.16 3.83 0.12 0.21
9 A' 989 989 15.59 3.04 0.69 0.81
10 A' 594 594 13.94 20.39 0.17 0.29
11 A' 293 293 1.68 2.68 0.26 0.41
12 A" 3179 3179 6.56 28.93 0.75 0.86
13 A" 3141 3141 7.55 66.82 0.75 0.86
14 A" 1492 1492 10.57 5.15 0.75 0.86
15 A" 1274 1274 0.25 0.89 0.75 0.86
16 A" 1046 1046 0.03 0.99 0.75 0.86
17 A" 780 780 3.81 0.01 0.75 0.86
18 A" 256 256 0.01 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14566.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14566.2 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 wB97X-D/aug-cc-pVQZ
ABC
1.01894 0.12637 0.11735

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/aug-cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.570 -2.029 0.000
C2 0.595 -1.066 0.000
Br3 0.000 0.793 0.000
H4 1.215 -1.172 0.884
H5 1.215 -1.172 -0.884
H6 -0.191 -3.052 0.000
H7 -1.192 -1.894 0.883
H8 -1.192 -1.894 -0.883

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51132.87902.16852.16851.09131.08841.0884
C21.51131.95191.08521.08522.13552.15842.1584
Br32.87901.95192.47352.47353.84983.06973.0697
H42.16851.08522.47351.76882.50822.51303.0722
H52.16851.08522.47351.76882.50823.07222.5130
H61.09132.13553.84982.50822.50821.76731.7673
H71.08842.15843.06972.51303.07221.76731.7659
H81.08842.15843.06973.07222.51301.76731.7659

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 111.835 C1 C2 H4 112.223
C1 C2 H5 112.223 C2 C1 H6 109.210
C2 C1 H7 111.208 C2 C1 H8 111.208
Br3 C2 H4 105.481 Br3 C2 H5 105.481
H4 C2 H5 109.167 H6 C1 H7 108.347
H6 C1 H8 108.347 H7 C1 H8 108.433
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.131      
2 C -0.210      
3 Br -0.029      
4 H 0.095      
5 H 0.095      
6 H 0.054      
7 H 0.063      
8 H 0.063      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.470 -2.127 0.000 2.178
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.902 -0.981 0.000
y -0.981 -30.043 0.000
z 0.000 0.000 -32.163
Traceless
 xyz
x -0.799 -0.981 0.000
y -0.981 1.989 0.000
z 0.000 0.000 -1.190
Polar
3z2-r2-2.381
x2-y2-1.859
xy-0.981
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.695 -0.053 0.000
y -0.053 8.993 0.000
z 0.000 0.000 6.319


<r2> (average value of r2) Å2
<r2> 105.386
(<r2>)1/2 10.266