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

using model chemistry: PM6

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
Energy calculated at PM6
 hartrees
Energy at 0K 
Energy at 298.15K-0.020743
HF Energy-0.020743
Nuclear repulsion energy55.424660
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 PM6
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' 2785 2959 35.05      
2 A' 2723 2893 63.09      
3 A' 2687 2855 51.97      
4 A' 1336 1419 81.08      
5 A' 1282 1362 18.89      
6 A' 1250 1328 49.55      
7 A' 1197 1271 13.78      
8 A' 1174 1247 22.96      
9 A' 1020 1084 63.09      
10 A' 592 629 35.33      
11 A' 299 318 3.68      
12 A" 2693 2861 130.84      
13 A" 2656 2822 26.18      
14 A" 1246 1324 40.45      
15 A" 1135 1206 6.52      
16 A" 979 1041 12.54      
17 A" 783 831 32.69      
18 A" 179 190 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 13007.1 cm-1
Scaled (by 1.0624) Zero Point Vibrational Energy (zpe) 13818.7 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 PM6
ABC
0.99103 0.12503 0.11590

See section I.F.4 to change rotational constant units
Geometric Data calculated at PM6

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.572 -2.029 0.000
C2 0.604 -1.085 0.000
Br3 0.000 0.799 0.000
H4 1.236 -1.203 0.897
H5 1.236 -1.203 -0.897
H6 -0.237 -3.076 0.000
H7 -1.214 -1.892 0.883
H8 -1.214 -1.892 -0.883

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.50882.88472.18082.18081.09951.09951.0995
C21.50881.97781.10361.10362.16172.17642.1764
Br32.88471.97782.51792.51793.88173.08083.0808
H42.18081.10362.51791.79502.54572.54443.1052
H52.18081.10362.51791.79502.54573.10522.5444
H61.09952.16173.88172.54572.54571.77041.7704
H71.09952.17643.08082.54443.10521.77041.7652
H81.09952.17643.08083.10522.54441.77041.7652

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 110.943 C1 C2 H4 112.262
C1 C2 H5 112.262 C2 C1 H6 110.976
C2 C1 H7 112.157 C2 C1 H8 112.157
Br3 C2 H4 106.090 Br3 C2 H5 106.090
H4 C2 H5 108.824 H6 C1 H7 107.239
H6 C1 H8 107.239 H7 C1 H8 106.779
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PM6 Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.469      
2 C -0.163      
3 Br -0.179      
4 H 0.157      
5 H 0.157      
6 H 0.159      
7 H 0.168      
8 H 0.168      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.420 -2.516 0.000 2.551
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 2.766 -0.673 0.000
y -0.673 6.275 0.000
z 0.000 0.000 2.272


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000