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

using model chemistry: B97D3/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/6-311G*
 hartrees
Energy at 0K-2654.640578
Energy at 298.15K 
HF Energy-2654.640578
Nuclear repulsion energy161.973144
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 B97D3/6-311G*
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' 3053 3053 44.48 60.33 0.30 0.46
2 A' 3039 3039 0.60 144.32 0.29 0.45
3 A' 2975 2975 28.93 193.83 0.10 0.19
4 A' 1490 1490 3.00 9.23 0.75 0.86
5 A' 1473 1473 0.99 10.84 0.73 0.85
6 A' 1397 1397 5.47 4.96 0.73 0.85
7 A' 1261 1261 64.83 5.14 0.65 0.79
8 A' 1064 1064 0.13 4.15 0.51 0.67
9 A' 956 956 20.02 4.83 0.70 0.83
10 A' 526 526 19.09 18.99 0.27 0.42
11 A' 280 280 2.99 3.03 0.48 0.65
12 A" 3111 3111 23.43 29.64 0.75 0.86
13 A" 3071 3071 11.30 96.84 0.75 0.86
14 A" 1474 1474 10.26 11.90 0.75 0.86
15 A" 1251 1251 0.97 3.15 0.75 0.86
16 A" 1021 1021 0.40 6.14 0.75 0.86
17 A" 768 768 5.42 0.31 0.75 0.86
18 A" 263 263 0.00 0.09 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14237.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14237.4 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 B97D3/6-311G*
ABC
0.99893 0.12264 0.11395

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.576 -2.053 0.000
C2 0.601 -1.097 0.000
Br3 0.000 0.806 0.000
H4 1.225 -1.194 0.892
H5 1.225 -1.194 -0.892
H6 -0.201 -3.087 0.000
H7 -1.202 -1.917 0.888
H8 -1.202 -1.917 -0.888

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51622.91602.18492.18491.10031.09531.0953
C21.51621.99581.09221.09222.14582.17102.1710
Br32.91601.99582.50892.50893.89833.10603.1060
H42.18491.09222.50891.78352.53212.53203.0950
H52.18491.09222.50891.78352.53213.09502.5320
H61.10032.14583.89832.53212.53211.77781.7778
H71.09532.17103.10602.53203.09501.77781.7765
H81.09532.17103.10603.09502.53201.77781.7765

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 111.530 C1 C2 H4 112.772
C1 C2 H5 112.772 C2 C1 H6 109.154
C2 C1 H7 111.453 C2 C1 H8 111.453
Br3 C2 H4 104.866 Br3 C2 H5 104.866
H4 C2 H5 109.458 H6 C1 H7 108.140
H6 C1 H8 108.140 H7 C1 H8 108.391
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.593      
2 C -0.480      
3 Br -0.084      
4 H 0.249      
5 H 0.249      
6 H 0.211      
7 H 0.225      
8 H 0.225      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.481 -2.199 0.000 2.251
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.898 -1.048 0.000
y -1.048 -29.863 0.000
z 0.000 0.000 -32.171
Traceless
 xyz
x -0.881 -1.048 0.000
y -1.048 2.171 0.000
z 0.000 0.000 -1.291
Polar
3z2-r2-2.581
x2-y2-2.035
xy-1.048
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.998 -0.232 0.000
y -0.232 8.162 0.000
z 0.000 0.000 4.550


<r2> (average value of r2) Å2
<r2> 107.779
(<r2>)1/2 10.382