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

using model chemistry: M06-2X/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at M06-2X/6-31G
 hartrees
Energy at 0K-2650.811392
Energy at 298.15K 
HF Energy-2650.811392
Nuclear repulsion energy162.544339
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 M06-2X/6-31G
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' 3175 3175 20.97 64.23 0.15 0.26
2 A' 3162 3162 0.26 131.59 0.41 0.58
3 A' 3089 3089 13.43 146.24 0.05 0.10
4 A' 1547 1547 6.30 18.15 0.73 0.85
5 A' 1531 1531 3.53 15.94 0.75 0.86
6 A' 1473 1473 11.33 7.38 0.68 0.81
7 A' 1319 1319 50.97 5.12 0.67 0.80
8 A' 1120 1120 0.79 7.70 0.58 0.73
9 A' 1020 1020 18.57 5.68 0.75 0.85
10 A' 559 559 21.35 21.50 0.32 0.49
11 A' 298 298 3.29 3.49 0.53 0.70
12 A" 3243 3243 7.46 44.44 0.75 0.86
13 A" 3187 3187 7.90 77.73 0.75 0.86
14 A" 1535 1535 12.26 23.01 0.75 0.86
15 A" 1301 1301 1.08 8.93 0.75 0.86
16 A" 1060 1060 0.01 11.57 0.75 0.86
17 A" 799 799 6.63 1.43 0.75 0.86
18 A" 262 262 0.01 0.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14839.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14839.0 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 M06-2X/6-31G
ABC
0.97582 0.12483 0.11550

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.584 -2.026 0.000
C2 0.617 -1.105 0.000
Br3 0.000 0.799 0.000
H4 1.230 -1.202 0.893
H5 1.230 -1.202 -0.893
H6 -0.251 -3.069 0.000
H7 -1.202 -1.860 0.885
H8 -1.202 -1.860 -0.885

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51352.88532.18332.18331.09491.09201.0920
C21.51352.00141.08741.08742.14762.15902.1590
Br32.88532.00142.51282.51283.87683.04993.0499
H42.18331.08742.51281.78532.54512.51953.0834
H52.18331.08742.51281.78532.54513.08342.5195
H61.09492.14763.87682.54512.54511.77451.7745
H71.09202.15903.04992.51953.08341.77451.7697
H81.09202.15903.04993.08342.51951.77451.7697

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 109.566 C1 C2 H4 113.145
C1 C2 H5 113.145 C2 C1 H6 109.802
C2 C1 H7 110.881 C2 C1 H8 110.881
Br3 C2 H4 104.995 Br3 C2 H5 104.995
H4 C2 H5 110.348 H6 C1 H7 108.474
H6 C1 H8 108.474 H7 C1 H8 108.254
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.422      
2 C -0.520      
3 Br -0.023      
4 H 0.220      
5 H 0.220      
6 H 0.167      
7 H 0.179      
8 H 0.179      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.552 -2.422 0.000 2.484
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.744 -0.891 0.000
y -0.891 -30.280 0.000
z 0.000 0.000 -32.171
Traceless
 xyz
x -0.519 -0.891 0.000
y -0.891 1.678 0.000
z 0.000 0.000 -1.159
Polar
3z2-r2-2.318
x2-y2-1.465
xy-0.891
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.887 -0.552 0.000
y -0.552 7.053 0.000
z 0.000 0.000 3.572


<r2> (average value of r2) Å2
<r2> 106.628
(<r2>)1/2 10.326