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

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

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-pVTZ
 hartrees
Energy at 0K-2653.495398
Energy at 298.15K 
HF Energy-2653.495398
Nuclear repulsion energy164.225628
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-pVTZ
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' 3129 3129 23.35 74.27 0.43 0.60
2 A' 3113 3113 2.75 120.77 0.16 0.27
3 A' 3053 3053 17.60 195.63 0.04 0.08
4 A' 1505 1505 2.62 3.16 0.75 0.86
5 A' 1494 1494 1.91 5.08 0.70 0.83
6 A' 1421 1421 6.01 1.21 0.55 0.71
7 A' 1292 1292 48.06 6.76 0.25 0.40
8 A' 1088 1088 0.17 3.87 0.11 0.20
9 A' 988 988 15.53 3.08 0.69 0.82
10 A' 593 593 14.37 20.56 0.17 0.29
11 A' 293 293 1.70 2.72 0.26 0.41
12 A" 3181 3181 6.77 29.86 0.75 0.86
13 A" 3141 3141 7.92 66.11 0.75 0.86
14 A" 1491 1491 10.44 5.18 0.75 0.86
15 A" 1274 1274 0.24 0.89 0.75 0.86
16 A" 1046 1046 0.03 1.01 0.75 0.86
17 A" 779 779 3.66 0.01 0.75 0.86
18 A" 256 256 0.01 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14568.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14568.0 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-pVTZ
ABC
1.01771 0.12622 0.11721

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.571 -2.030 0.000
C2 0.595 -1.068 0.000
Br3 0.000 0.794 0.000
H4 1.215 -1.173 0.885
H5 1.215 -1.173 -0.885
H6 -0.191 -3.053 0.000
H7 -1.193 -1.894 0.883
H8 -1.193 -1.894 -0.883

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51152.88032.16912.16911.09161.08871.0887
C21.51151.95411.08531.08532.13552.15862.1586
Br32.88031.95412.47512.47513.85153.07043.0704
H42.16911.08532.47511.76972.50902.51323.0728
H52.16911.08532.47511.76972.50903.07282.5132
H61.09162.13553.85152.50902.50901.76801.7680
H71.08872.15863.07042.51323.07281.76801.7664
H81.08872.15863.07043.07282.51321.76801.7664

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 111.790 C1 C2 H4 112.251
C1 C2 H5 112.251 C2 C1 H6 109.185
C2 C1 H7 111.197 C2 C1 H8 111.197
Br3 C2 H4 105.444 Br3 C2 H5 105.444
H4 C2 H5 109.224 H6 C1 H7 108.367
H6 C1 H8 108.367 H7 C1 H8 108.442
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.323      
2 C 0.071      
3 Br -0.502      
4 H 0.268      
5 H 0.268      
6 H 0.419      
7 H 0.400      
8 H 0.400      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.471 -2.132 0.000 2.184
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.915 -0.985 0.000
y -0.985 -30.043 0.000
z 0.000 0.000 -32.176
Traceless
 xyz
x -0.805 -0.985 0.000
y -0.985 2.003 0.000
z 0.000 0.000 -1.197
Polar
3z2-r2-2.394
x2-y2-1.872
xy-0.985
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.711 -0.054 0.000
y -0.054 9.007 0.000
z 0.000 0.000 6.337


<r2> (average value of r2) Å2
<r2> 105.485
(<r2>)1/2 10.271