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

using model chemistry: B97D3/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/6-311+G(3df,2p)
 hartrees
Energy at 0K-2654.655940
Energy at 298.15K 
HF Energy-2654.655940
Nuclear repulsion energy162.408000
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 B97D3/6-311+G(3df,2p)
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' 3048 3009 29.51 66.13 0.29 0.44
2 A' 3034 2995 0.23 128.44 0.22 0.37
3 A' 2972 2933 23.03 222.30 0.09 0.16
4 A' 1472 1453 2.32 3.58 0.74 0.85
5 A' 1458 1439 0.94 5.39 0.70 0.82
6 A' 1383 1365 4.17 2.00 0.54 0.70
7 A' 1242 1226 51.46 7.80 0.26 0.41
8 A' 1054 1040 0.15 3.45 0.13 0.23
9 A' 950 937 19.65 3.83 0.61 0.76
10 A' 529 522 17.86 20.81 0.18 0.30
11 A' 279 276 2.69 3.60 0.26 0.42
12 A" 3105 3065 11.01 29.08 0.75 0.86
13 A" 3065 3025 8.66 74.57 0.75 0.86
14 A" 1455 1436 9.59 5.59 0.75 0.86
15 A" 1237 1221 0.24 0.76 0.75 0.86
16 A" 1009 996 0.05 1.46 0.75 0.86
17 A" 761 751 3.42 0.01 0.75 0.86
18 A" 253 250 0.00 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14152.3 cm-1
Scaled (by 0.987) Zero Point Vibrational Energy (zpe) 13968.4 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 B97D3/6-311+G(3df,2p)
ABC
1.00306 0.12331 0.11456

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.575 -2.048 0.000
C2 0.600 -1.093 0.000
Br3 0.000 0.804 0.000
H4 1.221 -1.185 0.891
H5 1.221 -1.185 -0.891
H6 -0.198 -3.079 0.000
H7 -1.199 -1.912 0.887
H8 -1.199 -1.912 -0.887

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51432.90922.18272.18271.09781.09301.0930
C21.51431.98951.08981.08982.14082.16652.1665
Br32.90921.98952.49812.49813.88813.09783.0978
H42.18271.08982.49811.78222.52912.52653.0895
H52.18271.08982.49811.78222.52913.08952.5265
H61.09782.14083.88812.52912.52911.77521.7752
H71.09302.16653.09782.52653.08951.77521.7739
H81.09302.16653.09783.08952.52651.77521.7739

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 111.534 C1 C2 H4 112.875
C1 C2 H5 112.875 C2 C1 H6 109.039
C2 C1 H7 111.361 C2 C1 H8 111.361
Br3 C2 H4 104.619 Br3 C2 H5 104.619
H4 C2 H5 109.697 H6 C1 H7 108.249
H6 C1 H8 108.249 H7 C1 H8 108.483
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.272      
2 C -0.291      
3 Br -0.152      
4 H 0.154      
5 H 0.154      
6 H 0.127      
7 H 0.140      
8 H 0.140      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.451 -2.209 0.000 2.255
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.988 -0.945 0.000
y -0.945 -30.066 0.000
z 0.000 0.000 -32.309
Traceless
 xyz
x -0.800 -0.945 0.000
y -0.945 2.083 0.000
z 0.000 0.000 -1.282
Polar
3z2-r2-2.564
x2-y2-1.922
xy-0.945
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.740 -0.026 0.000
y -0.026 9.378 0.000
z 0.000 0.000 6.354


<r2> (average value of r2) Å2
<r2> 107.392
(<r2>)1/2 10.363