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

using model chemistry: PBE1PBE/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 PBE1PBE/cc-pVTZ
 hartrees
Energy at 0K-2653.058670
Energy at 298.15K 
HF Energy-2653.058670
Nuclear repulsion energy164.507274
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 PBE1PBE/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' 3125 3003 20.59 69.70 0.52 0.68
2 A' 3107 2986 3.64 128.33 0.17 0.29
3 A' 3047 2928 16.65 186.71 0.05 0.10
4 A' 1492 1434 2.75 5.41 0.75 0.86
5 A' 1481 1423 1.70 7.69 0.75 0.85
6 A' 1406 1351 6.39 2.25 0.69 0.82
7 A' 1277 1227 47.53 4.12 0.55 0.71
8 A' 1090 1047 0.10 3.41 0.26 0.41
9 A' 983 945 16.76 3.70 0.71 0.83
10 A' 589 566 13.82 17.20 0.22 0.36
11 A' 287 275 1.88 2.22 0.41 0.58
12 A" 3174 3051 7.92 24.72 0.75 0.86
13 A" 3139 3016 5.79 82.70 0.75 0.86
14 A" 1477 1419 10.30 7.71 0.75 0.86
15 A" 1265 1216 0.47 1.59 0.75 0.86
16 A" 1036 996 0.07 3.01 0.75 0.86
17 A" 772 742 4.62 0.07 0.75 0.86
18 A" 258 248 0.01 0.05 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14501.1 cm-1
Scaled (by 0.961) Zero Point Vibrational Energy (zpe) 13935.6 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 PBE1PBE/cc-pVTZ
ABC
1.01723 0.12688 0.11779

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.570 -2.023 0.000
C2 0.595 -1.067 0.000
Br3 0.000 0.791 0.000
H4 1.216 -1.169 0.886
H5 1.216 -1.169 -0.886
H6 -0.195 -3.050 0.000
H7 -1.193 -1.886 0.884
H8 -1.193 -1.886 -0.884

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.50692.87152.16912.16911.09391.09021.0902
C21.50691.95111.08731.08732.13502.15622.1562
Br32.87151.95112.47172.47173.84683.06153.0615
H42.16911.08732.47171.77262.51312.51383.0746
H52.16911.08732.47171.77262.51313.07462.5138
H61.09392.13503.84682.51312.51311.77041.7704
H71.09022.15623.06152.51383.07461.77041.7678
H81.09022.15623.06153.07462.51381.77041.7678

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 111.632 C1 C2 H4 112.458
C1 C2 H5 112.458 C2 C1 H6 109.323
C2 C1 H7 111.230 C2 C1 H8 111.230
Br3 C2 H4 105.309 Br3 C2 H5 105.309
H4 C2 H5 109.194 H6 C1 H7 108.311
H6 C1 H8 108.311 H7 C1 H8 108.345
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.292      
2 C -0.158      
3 Br -0.144      
4 H 0.126      
5 H 0.126      
6 H 0.106      
7 H 0.118      
8 H 0.118      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.464 -2.112 0.000 2.163
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.868 -0.973 0.000
y -0.973 -30.059 0.000
z 0.000 0.000 -32.139
Traceless
 xyz
x -0.769 -0.973 0.000
y -0.973 1.945 0.000
z 0.000 0.000 -1.176
Polar
3z2-r2-2.351
x2-y2-1.810
xy-0.973
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.669 -0.149 0.000
y -0.149 8.421 0.000
z 0.000 0.000 5.224


<r2> (average value of r2) Å2
<r2> 105.091
(<r2>)1/2 10.251