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

using model chemistry: wB97X-D/daug-cc-pVDZ

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/daug-cc-pVDZ
 hartrees
Energy at 0K-2653.399710
Energy at 298.15K 
HF Energy-2653.399710
Nuclear repulsion energy163.697850
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/daug-cc-pVDZ
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' 3135 3135 21.75 72.74 0.60 0.75
2 A' 3114 3114 6.90 119.56 0.10 0.18
3 A' 3050 3050 19.14 194.72 0.04 0.07
4 A' 1478 1478 2.40 3.37 0.75 0.86
5 A' 1465 1465 1.47 4.37 0.69 0.82
6 A' 1397 1397 7.23 1.74 0.58 0.73
7 A' 1275 1275 49.52 5.88 0.27 0.43
8 A' 1087 1087 0.08 4.42 0.14 0.24
9 A' 984 984 15.97 3.04 0.62 0.77
10 A' 589 589 15.91 20.95 0.17 0.30
11 A' 295 295 1.81 2.78 0.26 0.41
12 A" 3188 3188 7.63 29.54 0.75 0.86
13 A" 3151 3151 8.41 65.67 0.75 0.86
14 A" 1466 1466 10.35 5.18 0.75 0.86
15 A" 1259 1259 0.31 0.96 0.75 0.86
16 A" 1038 1038 0.04 1.14 0.75 0.86
17 A" 773 773 3.64 0.00 0.75 0.86
18 A" 261 261 0.01 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14502.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14502.7 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/daug-cc-pVDZ
ABC
1.00717 0.12564 0.11666

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.573 -2.033 0.000
C2 0.597 -1.071 0.000
Br3 0.000 0.795 0.000
H4 1.221 -1.178 0.892
H5 1.221 -1.178 -0.892
H6 -0.189 -3.063 0.000
H7 -1.198 -1.897 0.891
H8 -1.198 -1.897 -0.891

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51532.88602.17862.17861.09951.09651.0965
C21.51531.95951.09391.09392.14172.16782.1678
Br32.88601.95952.48632.48633.86313.07833.0783
H42.17861.09392.48631.78492.51712.52373.0899
H52.17861.09392.48631.78492.51713.08992.5237
H61.09952.14173.86312.51712.51711.78141.7814
H71.09652.16783.07832.52373.08991.78141.7810
H81.09652.16783.07833.08992.52371.78141.7810

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 111.671 C1 C2 H4 112.211
C1 C2 H5 112.211 C2 C1 H6 108.939
C2 C1 H7 111.184 C2 C1 H8 111.184
Br3 C2 H4 105.497 Br3 C2 H5 105.497
H4 C2 H5 109.330 H6 C1 H7 108.423
H6 C1 H8 108.423 H7 C1 H8 108.608
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.792      
2 C 0.437      
3 Br 0.208      
4 H -0.389      
5 H -0.389      
6 H -0.333      
7 H -0.163      
8 H -0.163      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.475 -2.197 0.000 2.248
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.018 -1.019 0.000
y -1.019 -30.043 0.000
z 0.000 0.000 -32.314
Traceless
 xyz
x -0.839 -1.019 0.000
y -1.019 2.123 0.000
z 0.000 0.000 -1.284
Polar
3z2-r2-2.568
x2-y2-1.974
xy-1.019
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.743 -0.059 0.000
y -0.059 9.070 0.000
z 0.000 0.000 6.362


<r2> (average value of r2) Å2
<r2> 106.003
(<r2>)1/2 10.296