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

using model chemistry: B97D3/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/cc-pVDZ
 hartrees
Energy at 0K-2654.623965
Energy at 298.15K 
HF Energy-2654.623965
Nuclear repulsion energy161.824377
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/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' 3063 3037 23.79 81.91 0.68 0.81
2 A' 3040 3014 9.57 141.20 0.13 0.23
3 A' 2980 2954 23.44 191.80 0.07 0.14
4 A' 1447 1435 1.37 11.97 0.75 0.86
5 A' 1436 1423 0.45 8.53 0.74 0.85
6 A' 1365 1353 1.73 6.12 0.67 0.81
7 A' 1229 1218 61.00 4.58 0.67 0.81
8 A' 1058 1049 0.49 4.22 0.47 0.64
9 A' 954 946 18.52 3.73 0.71 0.83
10 A' 529 525 18.51 17.01 0.26 0.41
11 A' 280 278 3.08 3.45 0.47 0.64
12 A" 3115 3089 16.76 22.97 0.75 0.86
13 A" 3083 3057 5.49 108.77 0.75 0.86
14 A" 1428 1416 7.23 14.42 0.75 0.86
15 A" 1226 1216 0.58 2.96 0.75 0.86
16 A" 997 989 0.02 6.54 0.75 0.86
17 A" 761 754 4.36 0.34 0.75 0.86
18 A" 262 260 0.00 0.08 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14125.8 cm-1
Scaled (by 0.9915) Zero Point Vibrational Energy (zpe) 14005.7 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 B97D3/cc-pVDZ
ABC
0.99355 0.12261 0.11393

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.576 -2.053 0.000
C2 0.601 -1.095 0.000
Br3 0.000 0.806 0.000
H4 1.230 -1.190 0.899
H5 1.230 -1.190 -0.899
H6 -0.196 -3.094 0.000
H7 -1.207 -1.916 0.895
H8 -1.207 -1.916 -0.895

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51752.91652.19432.19431.10801.10361.1036
C21.51751.99391.10141.10142.15132.17752.1775
Br32.91651.99392.51112.51113.90453.10883.1088
H42.19431.10142.51111.79832.54242.54223.1117
H52.19431.10142.51111.79832.54243.11172.5422
H61.10802.15133.90452.54242.54241.79201.7920
H71.10362.17753.10882.54223.11171.79201.7907
H81.10362.17753.10883.11172.54221.79201.7907

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 111.600 C1 C2 H4 112.864
C1 C2 H5 112.864 C2 C1 H6 109.049
C2 C1 H7 111.374 C2 C1 H8 111.374
Br3 C2 H4 104.732 Br3 C2 H5 104.732
H4 C2 H5 109.441 H6 C1 H7 108.248
H6 C1 H8 108.248 H7 C1 H8 108.447
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.003      
2 C -0.110      
3 Br -0.137      
4 H 0.069      
5 H 0.069      
6 H 0.030      
7 H 0.040      
8 H 0.040      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.430 -2.055 0.000 2.099
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.437 -0.933 0.000
y -0.933 -29.427 0.000
z 0.000 0.000 -31.743
Traceless
 xyz
x -0.852 -0.933 0.000
y -0.933 2.163 0.000
z 0.000 0.000 -1.311
Polar
3z2-r2-2.622
x2-y2-2.010
xy-0.933
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.898 -0.223 0.000
y -0.223 7.848 0.000
z 0.000 0.000 4.463


<r2> (average value of r2) Å2
<r2> 107.601
(<r2>)1/2 10.373