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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-311G*
 hartrees
Energy at 0K-2652.858787
Energy at 298.15K 
HF Energy-2652.858787
Nuclear repulsion energy162.465676
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 PBEPBEultrafine/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' 3043 3012 29.75 69.68 0.53 0.69
2 A' 3027 2995 4.23 136.31 0.21 0.34
3 A' 2968 2938 21.51 188.86 0.09 0.16
4 A' 1469 1454 3.84 9.48 0.75 0.86
5 A' 1451 1436 1.59 10.97 0.74 0.85
6 A' 1375 1361 8.53 5.37 0.73 0.85
7 A' 1247 1234 56.79 4.96 0.68 0.81
8 A' 1062 1051 0.08 3.79 0.54 0.70
9 A' 955 945 20.46 5.00 0.66 0.79
10 A' 548 542 15.31 17.07 0.26 0.41
11 A' 278 275 2.49 2.56 0.51 0.67
12 A" 3094 3062 16.78 23.47 0.75 0.86
13 A" 3060 3028 6.81 101.69 0.75 0.86
14 A" 1453 1438 12.04 11.85 0.75 0.86
15 A" 1237 1224 1.08 3.19 0.75 0.86
16 A" 1010 1000 0.33 6.19 0.75 0.86
17 A" 757 749 6.29 0.27 0.75 0.86
18 A" 261 259 0.00 0.09 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14147.4 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 14000.2 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 PBEPBEultrafine/6-311G*
ABC
1.00140 0.12353 0.11477

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.574 -2.047 0.000
C2 0.599 -1.087 0.000
Br3 0.000 0.803 0.000
H4 1.227 -1.188 0.894
H5 1.227 -1.188 -0.894
H6 -0.197 -3.084 0.000
H7 -1.204 -1.914 0.891
H8 -1.204 -1.914 -0.891

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51502.90672.18552.18551.10381.09931.0993
C21.51501.98251.09681.09682.14972.17432.1743
Br32.90671.98252.50332.50333.89203.10253.1025
H42.18551.09682.50331.78712.53382.53683.1015
H52.18551.09682.50331.78712.53383.10152.5368
H61.10382.14973.89202.53382.53381.78241.7824
H71.09932.17433.10252.53683.10151.78241.7814
H81.09932.17433.10253.10152.53681.78241.7814

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 111.725 C1 C2 H4 112.627
C1 C2 H5 112.627 C2 C1 H6 109.341
C2 C1 H7 111.559 C2 C1 H8 111.559
Br3 C2 H4 105.106 Br3 C2 H5 105.106
H4 C2 H5 109.120 H6 C1 H7 108.003
H6 C1 H8 108.003 H7 C1 H8 108.248
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.631      
2 C -0.530      
3 Br -0.062      
4 H 0.262      
5 H 0.262      
6 H 0.224      
7 H 0.237      
8 H 0.237      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.468 -2.105 0.000 2.157
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.125 -1.034 0.000
y -1.034 -30.066 0.000
z 0.000 0.000 -32.400
Traceless
 xyz
x -0.892 -1.034 0.000
y -1.034 2.197 0.000
z 0.000 0.000 -1.305
Polar
3z2-r2-2.609
x2-y2-2.059
xy-1.034
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.045 -0.206 0.000
y -0.206 8.137 0.000
z 0.000 0.000 4.593


<r2> (average value of r2) Å2
<r2> 107.396
(<r2>)1/2 10.363