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

using model chemistry: BLYP/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/daug-cc-pVTZ
 hartrees
Energy at 0K-2653.434193
Energy at 298.15K 
HF Energy-2653.434193
Nuclear repulsion energy161.068849
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 BLYP/daug-cc-pVTZ
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' 3026 3026 22.41 90.17 0.07 0.12
2 A' 3008 3008 2.60 119.74 0.34 0.51
3 A' 2950 2950 20.38 253.58 0.10 0.18
4 A' 1464 1464 2.24 3.32 0.75 0.86
5 A' 1451 1451 0.75 5.68 0.72 0.84
6 A' 1377 1377 3.67 2.34 0.48 0.65
7 A' 1231 1231 53.50 9.97 0.23 0.37
8 A' 1040 1040 0.11 3.20 0.11 0.21
9 A' 938 938 19.90 4.17 0.63 0.77
10 A' 516 516 17.74 22.34 0.17 0.29
11 A' 271 271 2.70 3.94 0.25 0.39
12 A" 3080 3080 7.80 35.16 0.75 0.86
13 A" 3034 3034 8.83 71.08 0.75 0.86
14 A" 1447 1447 9.11 5.72 0.75 0.86
15 A" 1231 1231 0.19 0.60 0.75 0.86
16 A" 997 997 0.04 1.31 0.75 0.86
17 A" 756 756 3.35 0.01 0.75 0.86
18 A" 244 244 0.00 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14030.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14030.0 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 BLYP/daug-cc-pVTZ
ABC
0.99966 0.12079 0.11236

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.576 -2.069 0.000
C2 0.601 -1.107 0.000
Br3 0.000 0.812 0.000
H4 1.222 -1.195 0.893
H5 1.222 -1.195 -0.893
H6 -0.193 -3.101 0.000
H7 -1.202 -1.938 0.889
H8 -1.202 -1.938 -0.889

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.52042.93852.18962.18961.10021.09511.0951
C21.52042.01111.09101.09102.14652.17542.1754
Br32.93852.01112.51402.51403.91793.13033.1303
H42.18961.09102.51401.78532.53642.53573.0988
H52.18961.09102.51401.78532.53643.09882.5357
H61.10022.14653.91792.53642.53641.77741.7774
H71.09512.17543.13032.53573.09881.77741.7773
H81.09512.17543.13033.09882.53571.77741.7773

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 111.878 C1 C2 H4 112.926
C1 C2 H5 112.926 C2 C1 H6 108.934
C2 C1 H7 111.521 C2 C1 H8 111.521
Br3 C2 H4 104.320 Br3 C2 H5 104.320
H4 C2 H5 109.802 H6 C1 H7 108.130
H6 C1 H8 108.130 H7 C1 H8 108.489
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.628      
2 C 0.103      
3 Br -0.565      
4 H 0.160      
5 H 0.160      
6 H 0.177      
7 H 0.296      
8 H 0.296      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.446 -2.201 0.000 2.246
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.525 -0.944 0.000
y -0.944 -30.540 0.000
z 0.000 0.000 -32.791
Traceless
 xyz
x -0.859 -0.944 0.000
y -0.944 2.118 0.000
z 0.000 0.000 -1.259
Polar
3z2-r2-2.518
x2-y2-1.985
xy-0.944
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.159 -0.001 0.000
y -0.001 9.852 0.000
z 0.000 0.000 6.727


<r2> (average value of r2) Å2
<r2> 109.321
(<r2>)1/2 10.456