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

using model chemistry: TPSSh/cc-pVTZ-PP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/cc-pVTZ-PP
 hartrees
Energy at 0K-496.036360
Energy at 298.15K 
HF Energy-496.036360
Nuclear repulsion energy127.236398
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 TPSSh/cc-pVTZ-PP
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' 3098 3098 29.37 64.85 0.20 0.33
2 A' 3085 3085 0.06 134.92 0.28 0.44
3 A' 3022 3022 21.43 199.28 0.08 0.15
4 A' 1510 1510 1.79 5.72 0.75 0.85
5 A' 1495 1495 0.84 7.43 0.75 0.85
6 A' 1416 1416 3.34 2.45 0.65 0.79
7 A' 1270 1270 55.93 4.34 0.55 0.71
8 A' 1075 1075 0.05 3.67 0.26 0.41
9 A' 968 968 16.47 3.80 0.74 0.85
10 A' 559 559 16.69 18.60 0.22 0.36
11 A' 274 274 2.12 2.68 0.38 0.56
12 A" 3155 3155 10.80 30.24 0.75 0.86
13 A" 3113 3113 8.96 78.89 0.75 0.86
14 A" 1493 1493 8.48 8.27 0.75 0.86
15 A" 1267 1267 0.27 1.54 0.75 0.86
16 A" 1026 1026 0.14 3.31 0.75 0.86
17 A" 767 767 3.51 0.09 0.75 0.86
18 A" 252 252 0.01 0.04 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14421.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14421.8 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 TPSSh/cc-pVTZ-PP
ABC
1.00670 0.12503 0.11608

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.574 -2.036 0.000
C2 0.600 -1.081 0.000
Br3 0.000 0.798 0.000
H4 1.219 -1.176 0.889
H5 1.219 -1.176 -0.889
H6 -0.199 -3.065 0.000
H7 -1.196 -1.897 0.885
H8 -1.196 -1.897 -0.885

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51332.89112.17812.17811.09501.09041.0904
C21.51331.97251.08691.08692.13822.16172.1617
Br32.89111.97252.48372.48373.86743.07783.0778
H42.17811.08692.48371.77742.52352.51963.0814
H52.17811.08692.48371.77742.52353.08142.5196
H61.09502.13823.86742.52352.52351.77201.7720
H71.09042.16173.07782.51963.08141.77201.7702
H81.09042.16173.07783.08142.51961.77201.7702

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 111.395 C1 C2 H4 112.760
C1 C2 H5 112.760 C2 C1 H6 109.075
C2 C1 H7 111.211 C2 C1 H8 111.211
Br3 C2 H4 104.821 Br3 C2 H5 104.821
H4 C2 H5 109.705 H6 C1 H7 108.362
H6 C1 H8 108.362 H7 C1 H8 108.534
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVTZ-PP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.213      
2 C -0.130      
3 Br -0.139      
4 H 0.108      
5 H 0.108      
6 H 0.078      
7 H 0.094      
8 H 0.094      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.454 -2.111 0.000 2.159
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.816 -0.121 0.000
y -0.121 8.599 0.000
z 0.000 0.000 5.387


<r2> (average value of r2) Å2
<r2> 99.664
(<r2>)1/2 9.983