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

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/daug-cc-pVTZ
 hartrees
Energy at 0K-2653.493297
Energy at 298.15K 
HF Energy-2653.493297
Nuclear repulsion energy162.893617
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 B3LYPultrafine/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' 3100 3100 23.19 83.76 0.09 0.16
2 A' 3085 3085 1.27 115.53 0.35 0.51
3 A' 3025 3025 19.06 222.47 0.08 0.14
4 A' 1500 1500 2.40 2.89 0.75 0.86
5 A' 1489 1489 1.18 5.66 0.71 0.83
6 A' 1415 1415 4.43 1.65 0.51 0.68
7 A' 1275 1275 52.93 8.71 0.24 0.39
8 A' 1076 1076 0.12 3.56 0.12 0.21
9 A' 972 972 17.70 3.55 0.67 0.80
10 A' 552 552 17.51 22.16 0.18 0.30
11 A' 283 283 2.30 3.31 0.25 0.40
12 A" 3156 3156 6.54 33.65 0.75 0.86
13 A" 3110 3110 8.39 66.88 0.75 0.86
14 A" 1484 1484 9.68 5.47 0.75 0.86
15 A" 1266 1266 0.20 0.71 0.75 0.86
16 A" 1032 1032 0.04 1.16 0.75 0.86
17 A" 775 775 3.50 0.01 0.75 0.86
18 A" 253 253 0.01 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14424.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14424.0 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 B3LYPultrafine/daug-cc-pVTZ
ABC
1.01312 0.12383 0.11510

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/daug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.572 -2.046 0.000
C2 0.597 -1.087 0.000
Br3 0.000 0.802 0.000
H4 1.216 -1.182 0.886
H5 1.216 -1.182 -0.886
H6 -0.194 -3.072 0.000
H7 -1.195 -1.913 0.883
H8 -1.195 -1.913 -0.883

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51172.90442.17432.17431.09331.08891.0889
C21.51171.98121.08501.08502.13612.16152.1615
Br32.90441.98122.48972.48973.87823.09463.0946
H42.17431.08502.48971.77242.51852.51893.0783
H52.17431.08502.48971.77242.51853.07832.5189
H61.09332.13613.87822.51852.51851.76761.7676
H71.08892.16153.09462.51893.07831.76761.7665
H81.08892.16153.09463.07832.51891.76761.7665

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 111.809 C1 C2 H4 112.686
C1 C2 H5 112.686 C2 C1 H6 109.114
C2 C1 H7 111.402 C2 C1 H8 111.402
Br3 C2 H4 104.778 Br3 C2 H5 104.778
H4 C2 H5 109.531 H6 C1 H7 108.199
H6 C1 H8 108.199 H7 C1 H8 108.419
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.831      
2 C -0.049      
3 Br -0.419      
4 H 0.199      
5 H 0.199      
6 H 0.252      
7 H 0.325      
8 H 0.325      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.465 -2.192 0.000 2.241
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.238 -0.961 0.000
y -0.961 -30.369 0.000
z 0.000 0.000 -32.503
Traceless
 xyz
x -0.802 -0.961 0.000
y -0.961 2.002 0.000
z 0.000 0.000 -1.199
Polar
3z2-r2-2.399
x2-y2-1.869
xy-0.961
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.838 -0.041 0.000
y -0.041 9.345 0.000
z 0.000 0.000 6.434


<r2> (average value of r2) Å2
<r2> 107.133
(<r2>)1/2 10.351