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

using model chemistry: B97D3/aug-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 B97D3/aug-cc-pVDZ
 hartrees
Energy at 0K-2654.633700
Energy at 298.15K 
HF Energy-2654.633700
Nuclear repulsion energy161.820430
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/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3061 3061 28.02 71.40 0.58 0.73
2 A' 3044 3044 5.19 138.80 0.12 0.21
3 A' 2978 2978 24.53 243.80 0.07 0.14
4 A' 1445 1445 1.67 3.73 0.75 0.86
5 A' 1431 1431 0.52 4.38 0.72 0.84
6 A' 1360 1360 4.27 2.69 0.53 0.70
7 A' 1226 1226 54.52 7.01 0.30 0.46
8 A' 1055 1055 0.49 3.60 0.16 0.27
9 A' 948 948 19.05 4.07 0.59 0.74
10 A' 525 525 19.36 21.28 0.18 0.31
11 A' 281 281 2.86 3.53 0.27 0.43
12 A" 3120 3120 12.83 30.64 0.75 0.86
13 A" 3083 3083 8.89 76.58 0.75 0.86
14 A" 1428 1428 8.65 5.52 0.75 0.86
15 A" 1226 1226 0.32 0.65 0.75 0.86
16 A" 999 999 0.06 1.41 0.75 0.86
17 A" 757 757 3.27 0.01 0.75 0.86
18 A" 255 255 0.00 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14111.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14111.1 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/aug-cc-pVDZ
ABC
0.99205 0.12265 0.11393

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.578 -2.052 0.000
C2 0.603 -1.098 0.000
Br3 0.000 0.806 0.000
H4 1.227 -1.194 0.899
H5 1.227 -1.194 -0.899
H6 -0.198 -3.089 0.000
H7 -1.204 -1.912 0.894
H8 -1.204 -1.912 -0.894

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51782.91532.19082.19081.10521.10041.1004
C21.51781.99731.09791.09792.14612.17412.1741
Br32.91531.99732.51192.51193.90023.10413.1041
H42.19081.09792.51191.79742.53572.53433.1043
H52.19081.09792.51191.79742.53573.10432.5343
H61.10522.14613.90022.53572.53571.78831.7883
H71.10042.17413.10412.53433.10431.78831.7883
H81.10042.17413.10413.10432.53431.78831.7883

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 111.338 C1 C2 H4 112.784
C1 C2 H5 112.784 C2 C1 H6 108.792
C2 C1 H7 111.281 C2 C1 H8 111.281
Br3 C2 H4 104.727 Br3 C2 H5 104.727
H4 C2 H5 109.888 H6 C1 H7 108.351
H6 C1 H8 108.351 H7 C1 H8 108.698
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.669      
2 C 0.103      
3 Br 0.118      
4 H -0.192      
5 H -0.192      
6 H -0.172      
7 H -0.167      
8 H -0.167      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.459 -2.252 0.000 2.299
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.079 -0.979 0.000
y -0.979 -30.104 0.000
z 0.000 0.000 -32.374
Traceless
 xyz
x -0.840 -0.979 0.000
y -0.979 2.122 0.000
z 0.000 0.000 -1.283
Polar
3z2-r2-2.565
x2-y2-1.974
xy-0.979
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.814 -0.038 0.000
y -0.038 9.550 0.000
z 0.000 0.000 6.380


<r2> (average value of r2) Å2
<r2> 107.959
(<r2>)1/2 10.390