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

using model chemistry: TPSSh/aug-cc-pVQZ

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/aug-cc-pVQZ
 hartrees
Energy at 0K-2653.391101
Energy at 298.15K 
HF Energy-2653.391101
Nuclear repulsion energy163.513931
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/aug-cc-pVQZ
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' 3096 3096 27.72 72.90 0.21 0.35
2 A' 3083 3083 0.03 130.45 0.24 0.38
3 A' 3021 3021 21.48 221.38 0.07 0.13
4 A' 1510 1510 1.87 3.24 0.75 0.86
5 A' 1495 1495 0.87 5.45 0.72 0.84
6 A' 1417 1417 3.36 1.54 0.54 0.70
7 A' 1272 1272 53.17 7.04 0.25 0.40
8 A' 1076 1076 0.08 3.90 0.12 0.21
9 A' 969 969 16.29 3.34 0.69 0.82
10 A' 561 561 17.08 20.61 0.17 0.29
11 A' 276 276 2.21 2.83 0.26 0.42
12 A" 3152 3152 8.75 31.34 0.75 0.86
13 A" 3111 3111 8.81 70.47 0.75 0.86
14 A" 1493 1493 8.85 5.48 0.75 0.86
15 A" 1268 1268 0.15 0.76 0.75 0.86
16 A" 1030 1030 0.07 1.16 0.75 0.86
17 A" 767 767 3.08 0.01 0.75 0.86
18 A" 252 252 0.01 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14422.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14422.8 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/aug-cc-pVQZ
ABC
1.00860 0.12520 0.11624

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.574 -2.035 0.000
C2 0.599 -1.079 0.000
Br3 0.000 0.797 0.000
H4 1.218 -1.175 0.888
H5 1.218 -1.175 -0.888
H6 -0.197 -3.062 0.000
H7 -1.195 -1.897 0.885
H8 -1.195 -1.897 -0.885

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51332.88982.17692.17691.09421.08971.0897
C21.51331.96971.08621.08622.13702.16132.1613
Br32.88981.96972.48152.48153.86453.07733.0773
H42.17691.08622.48151.77572.52062.51863.0798
H52.17691.08622.48151.77572.52063.07982.5186
H61.09422.13703.86452.52062.52061.77101.7710
H71.08972.16133.07732.51863.07981.77101.7692
H81.08972.16133.07733.07982.51861.77101.7692

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 111.463 C1 C2 H4 112.706
C1 C2 H5 112.706 C2 C1 H6 109.023
C2 C1 H7 111.216 C2 C1 H8 111.216
Br3 C2 H4 104.874 Br3 C2 H5 104.874
H4 C2 H5 109.654 H6 C1 H7 108.378
H6 C1 H8 108.378 H7 C1 H8 108.544
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.176      
2 C -0.552      
3 Br -0.194      
4 H 0.378      
5 H 0.378      
6 H 0.397      
7 H 0.385      
8 H 0.385      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.468 -2.189 0.000 2.238
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 6.772 -0.026 0.000
y -0.026 9.248 0.000
z 0.000 0.000 6.355


<r2> (average value of r2) Å2
<r2> 106.172
(<r2>)1/2 10.304