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

using model chemistry: B3LYPultrafine/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-2653.394800
Energy at 298.15K 
HF Energy-2653.394800
Nuclear repulsion energy162.301193
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/aug-cc-pVDZ
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' 3109 3017 25.85 69.62 0.28 0.44
2 A' 3097 3005 0.28 130.84 0.22 0.36
3 A' 3030 2941 19.24 221.13 0.07 0.13
4 A' 1470 1427 2.02 3.51 0.75 0.86
5 A' 1458 1415 0.93 4.80 0.71 0.83
6 A' 1389 1348 5.19 2.10 0.56 0.71
7 A' 1255 1218 54.18 7.00 0.31 0.47
8 A' 1074 1043 0.21 3.93 0.16 0.27
9 A' 968 939 17.88 3.75 0.63 0.77
10 A' 549 533 18.70 21.99 0.19 0.32
11 A' 285 276 2.45 3.20 0.28 0.44
12 A" 3170 3076 7.12 35.30 0.75 0.86
13 A" 3128 3035 8.63 68.23 0.75 0.86
14 A" 1454 1411 9.43 5.65 0.75 0.86
15 A" 1249 1212 0.29 0.74 0.75 0.86
16 A" 1021 990 0.05 1.30 0.75 0.86
17 A" 767 744 3.42 0.01 0.75 0.86
18 A" 254 247 0.00 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14362.8 cm-1
Scaled (by 0.9704) Zero Point Vibrational Energy (zpe) 13937.7 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/aug-cc-pVDZ
ABC
1.00072 0.12320 0.11448

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.575 -2.049 0.000
C2 0.600 -1.091 0.000
Br3 0.000 0.804 0.000
H4 1.222 -1.189 0.895
H5 1.222 -1.189 -0.895
H6 -0.193 -3.083 0.000
H7 -1.201 -1.914 0.891
H8 -1.201 -1.914 -0.891

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51632.91062.18442.18441.10161.09721.0972
C21.51631.98781.09401.09402.14362.17122.1712
Br32.91061.98782.50302.50303.89133.10193.1019
H42.18441.09402.50301.78902.52792.52933.0961
H52.18441.09402.50301.78902.52793.09612.5293
H61.10162.14363.89132.52792.52791.78201.7820
H71.09722.17123.10192.52933.09611.78201.7820
H81.09722.17123.10193.09612.52931.78201.7820

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 111.615 C1 C2 H4 112.609
C1 C2 H5 112.609 C2 C1 H6 108.905
C2 C1 H7 111.347 C2 C1 H8 111.347
Br3 C2 H4 104.876 Br3 C2 H5 104.876
H4 C2 H5 109.708 H6 C1 H7 108.276
H6 C1 H8 108.276 H7 C1 H8 108.594
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.852      
2 C 0.238      
3 Br 0.123      
4 H -0.257      
5 H -0.257      
6 H -0.241      
7 H -0.229      
8 H -0.229      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.475 -2.235 0.000 2.285
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.313 -0.997 0.000
y -0.997 -30.407 0.000
z 0.000 0.000 -32.593
Traceless
 xyz
x -0.813 -0.997 0.000
y -0.997 2.046 0.000
z 0.000 0.000 -1.233
Polar
3z2-r2-2.466
x2-y2-1.906
xy-0.997
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.645 -0.077 0.000
y -0.077 9.316 0.000
z 0.000 0.000 6.227


<r2> (average value of r2) Å2
<r2> 107.702
(<r2>)1/2 10.378