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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-2650.959583
Energy at 298.15K 
HF Energy-2650.959583
Nuclear repulsion energy164.319724
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' 3163 3006 17.10 71.20 0.65 0.79
2 A' 3141 2985 6.34 111.70 0.17 0.29
3 A' 3082 2929 14.96 141.84 0.05 0.10
4 A' 1515 1440 2.16 12.63 0.74 0.85
5 A' 1503 1429 0.87 12.92 0.75 0.85
6 A' 1424 1354 5.35 6.48 0.70 0.82
7 A' 1294 1230 54.39 2.57 0.67 0.80
8 A' 1099 1044 0.20 4.90 0.41 0.58
9 A' 990 941 13.68 4.49 0.73 0.85
10 A' 594 565 16.53 17.84 0.26 0.41
11 A' 296 281 2.23 2.16 0.39 0.57
12 A" 3212 3053 8.40 31.13 0.75 0.86
13 A" 3178 3021 5.55 85.34 0.75 0.86
14 A" 1501 1426 8.61 19.43 0.75 0.86
15 A" 1275 1212 0.47 5.92 0.75 0.86
16 A" 1046 994 0.07 5.88 0.75 0.86
17 A" 774 736 3.84 0.28 0.75 0.86
18 A" 262 249 0.02 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14674.3 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 13946.4 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
0.99878 0.12722 0.11786

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 -0.577 -2.018 0.000
C2 0.604 -1.070 0.000
Br3 0.000 0.790 0.000
H4 1.224 -1.175 0.889
H5 1.224 -1.175 -0.889
H6 -0.218 -3.052 0.000
H7 -1.197 -1.864 0.885
H8 -1.197 -1.864 -0.885

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51442.86732.17812.17811.09461.09161.0916
C21.51441.95651.08871.08872.14582.15812.1581
Br32.86731.95652.47982.47983.84903.04363.0436
H42.17811.08872.47981.77872.52882.51663.0793
H52.17811.08872.47981.77872.52883.07932.5166
H61.09462.14583.84902.52882.52881.77561.7756
H71.09162.15813.04362.51663.07931.77561.7703
H81.09162.15813.04363.07932.51661.77561.7703

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 110.758 C1 C2 H4 112.563
C1 C2 H5 112.563 C2 C1 H6 109.612
C2 C1 H7 110.771 C2 C1 H8 110.771
Br3 C2 H4 105.468 Br3 C2 H5 105.468
H4 C2 H5 109.551 H6 C1 H7 108.628
H6 C1 H8 108.628 H7 C1 H8 108.370
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 -0.360      
2 C -0.256      
3 Br -0.157      
4 H 0.172      
5 H 0.172      
6 H 0.133      
7 H 0.148      
8 H 0.148      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.481 -2.133 0.000 2.186
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.571 -1.004 0.000
y -1.004 -29.796 0.000
z 0.000 0.000 -31.959
Traceless
 xyz
x -0.694 -1.004 0.000
y -1.004 1.969 0.000
z 0.000 0.000 -1.275
Polar
3z2-r2-2.551
x2-y2-1.775
xy-1.004
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.935 -0.253 0.000
y -0.253 7.368 0.000
z 0.000 0.000 4.693


<r2> (average value of r2) Å2
<r2> 104.882
(<r2>)1/2 10.241