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

using model chemistry: B97D3/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-2654.687377
Energy at 298.15K 
HF Energy-2654.687377
Nuclear repulsion energy162.501312
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/Def2TZVPP
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' 3055 3013 30.28 62.99 0.30 0.46
2 A' 3040 2999 0.66 140.43 0.23 0.37
3 A' 2978 2937 22.44 217.81 0.08 0.15
4 A' 1472 1452 2.02 5.47 0.74 0.85
5 A' 1458 1438 0.80 7.49 0.75 0.86
6 A' 1384 1365 4.03 2.68 0.67 0.80
7 A' 1244 1227 52.39 5.67 0.51 0.67
8 A' 1056 1041 0.15 3.84 0.25 0.40
9 A' 951 938 18.94 3.75 0.70 0.82
10 A' 529 522 17.29 18.66 0.25 0.39
11 A' 279 275 2.72 3.16 0.37 0.54
12 A" 3111 3068 12.57 28.51 0.75 0.86
13 A" 3071 3029 8.22 81.52 0.75 0.86
14 A" 1455 1435 8.95 8.21 0.75 0.86
15 A" 1240 1223 0.38 1.64 0.75 0.86
16 A" 1009 995 0.09 2.91 0.75 0.86
17 A" 762 752 3.80 0.05 0.75 0.86
18 A" 255 251 0.01 0.05 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14173.7 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 13979.5 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/Def2TZVPP
ABC
1.00385 0.12347 0.11471

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.574 -2.047 0.000
C2 0.600 -1.092 0.000
Br3 0.000 0.803 0.000
H4 1.221 -1.186 0.891
H5 1.221 -1.186 -0.891
H6 -0.198 -3.078 0.000
H7 -1.198 -1.910 0.887
H8 -1.198 -1.910 -0.887

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51362.90732.18152.18151.09791.09321.0932
C21.51361.98781.09001.09002.14082.16562.1656
Br32.90731.98782.49792.49793.88653.09553.0955
H42.18151.09002.49791.78192.52792.52533.0885
H52.18151.09002.49791.78192.52793.08852.5253
H61.09792.14083.88652.52792.52791.77571.7757
H71.09322.16563.09552.52533.08851.77571.7742
H81.09322.16563.09553.08852.52531.77571.7742

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 111.546 C1 C2 H4 112.817
C1 C2 H5 112.817 C2 C1 H6 109.077
C2 C1 H7 111.325 C2 C1 H8 111.325
Br3 C2 H4 104.706 Br3 C2 H5 104.706
H4 C2 H5 109.645 H6 C1 H7 108.269
H6 C1 H8 108.269 H7 C1 H8 108.479
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.147      
2 C -0.088      
3 Br -0.163      
4 H 0.101      
5 H 0.101      
6 H 0.058      
7 H 0.068      
8 H 0.068      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.447 -2.175 0.000 2.220
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.875 -0.952 0.000
y -0.952 -30.011 0.000
z 0.000 0.000 -32.141
Traceless
 xyz
x -0.798 -0.952 0.000
y -0.952 1.997 0.000
z 0.000 0.000 -1.198
Polar
3z2-r2-2.397
x2-y2-1.863
xy-0.952
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.095 -0.114 0.000
y -0.114 8.985 0.000
z 0.000 0.000 5.676


<r2> (average value of r2) Å2
<r2> 107.217
(<r2>)1/2 10.355