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

using model chemistry: B2PLYP/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/daug-cc-pVDZ
 hartrees
Energy at 0K-2652.844077
Energy at 298.15K 
HF Energy-2652.695536
Nuclear repulsion energy162.960714
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 B2PLYP/daug-cc-pVDZ
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' 3133 3133 22.97 70.03 0.57 0.72
2 A' 3115 3115 5.05 129.72 0.12 0.22
3 A' 3051 3051 19.37 211.75 0.05 0.10
4 A' 1485 1485 1.91 3.20 0.75 0.86
5 A' 1469 1469 0.88 5.28 0.69 0.82
6 A' 1397 1397 4.99 1.62 0.60 0.75
7 A' 1269 1269 52.46 6.78 0.26 0.42
8 A' 1085 1085 0.12 4.74 0.14 0.24
9 A' 977 977 15.29 3.44 0.64 0.78
10 A' 567 567 16.74 22.06 0.17 0.30
11 A' 288 288 1.97 2.99 0.26 0.41
12 A" 3188 3188 7.92 31.67 0.75 0.86
13 A" 3151 3151 8.11 68.14 0.75 0.86
14 A" 1472 1472 9.28 5.63 0.75 0.86
15 A" 1260 1260 0.24 0.84 0.75 0.86
16 A" 1033 1033 0.09 1.26 0.75 0.86
17 A" 771 771 3.11 0.01 0.75 0.86
18 A" 259 259 0.01 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14484.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14484.4 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 B2PLYP/daug-cc-pVDZ
ABC
0.99932 0.12452 0.11559

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.576 -2.040 0.000
C2 0.601 -1.082 0.000
Br3 0.000 0.799 0.000
H4 1.223 -1.185 0.894
H5 1.223 -1.185 -0.894
H6 -0.198 -3.073 0.000
H7 -1.200 -1.899 0.890
H8 -1.200 -1.899 -0.890

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51762.89692.18342.18341.10031.09631.0963
C21.51761.97541.09371.09372.14522.16902.1690
Br32.89691.97542.49672.49673.87743.08413.0841
H42.18341.09372.49671.78722.52652.52663.0928
H52.18341.09372.49671.78722.52653.09282.5266
H61.10032.14523.87742.52652.52651.78221.7822
H71.09632.16903.08412.52663.09281.78221.7803
H81.09632.16903.08413.09282.52661.78221.7803

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 111.392 C1 C2 H4 112.459
C1 C2 H5 112.459 C2 C1 H6 109.018
C2 C1 H7 111.131 C2 C1 H8 111.131
Br3 C2 H4 105.232 Br3 C2 H5 105.232
H4 C2 H5 109.585 H6 C1 H7 108.455
H6 C1 H8 108.455 H7 C1 H8 108.575
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.959      
2 C 0.503      
3 Br 0.238      
4 H -0.440      
5 H -0.440      
6 H -0.396      
7 H -0.211      
8 H -0.211      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.470 -2.176 0.000 2.226
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.483 -1.035 0.002
y -1.035 -30.568 0.017
z 0.002 0.017 -32.747
Traceless
 xyz
x -0.826 -1.035 0.002
y -1.035 2.047 0.017
z 0.002 0.017 -1.222
Polar
3z2-r2-2.443
x2-y2-1.915
xy-1.035
xz0.002
yz0.017


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.786 -0.063 -0.001
y -0.063 9.216 0.002
z -0.001 0.002 6.383


<r2> (average value of r2) Å2
<r2> 107.017
(<r2>)1/2 10.345