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

using model chemistry: B3PW91/daug-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 B3PW91/daug-cc-pVDZ
 hartrees
Energy at 0K-2653.351595
Energy at 298.15K 
HF Energy-2653.351595
Nuclear repulsion energy163.374055
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 B3PW91/daug-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' 3123 3123 20.08 73.52 0.62 0.77
2 A' 3102 3102 6.09 128.43 0.10 0.18
3 A' 3039 3039 18.62 216.72 0.05 0.10
4 A' 1468 1468 2.33 3.57 0.75 0.86
5 A' 1452 1452 1.16 4.49 0.73 0.84
6 A' 1382 1382 6.82 2.44 0.56 0.71
7 A' 1255 1255 49.08 6.43 0.27 0.42
8 A' 1082 1082 0.27 3.94 0.16 0.27
9 A' 972 972 17.48 3.34 0.55 0.71
10 A' 570 570 16.22 20.38 0.17 0.29
11 A' 286 286 2.17 2.84 0.26 0.42
12 A" 3176 3176 8.04 27.80 0.75 0.86
13 A" 3141 3141 6.89 73.23 0.75 0.86
14 A" 1452 1452 10.17 5.64 0.75 0.86
15 A" 1247 1247 0.32 0.84 0.75 0.86
16 A" 1023 1023 0.03 1.27 0.75 0.86
17 A" 764 764 3.88 0.01 0.75 0.86
18 A" 257 257 0.01 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14395.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14395.2 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 B3PW91/daug-cc-pVDZ
ABC
1.00719 0.12507 0.11617

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.573 -2.036 0.000
C2 0.597 -1.077 0.000
Br3 0.000 0.797 0.000
H4 1.221 -1.179 0.893
H5 1.221 -1.179 -0.893
H6 -0.191 -3.068 0.000
H7 -1.199 -1.901 0.890
H8 -1.199 -1.901 -0.890

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51212.89052.17942.17941.10071.09671.0967
C21.51211.96761.09451.09452.14072.16672.1667
Br32.89051.96762.48942.48943.87023.08363.0836
H42.17941.09452.48941.78612.52152.52543.0915
H52.17941.09452.48941.78612.52153.09152.5254
H61.10072.14073.87022.52152.52151.78101.7810
H71.09672.16673.08362.52543.09151.78101.7805
H81.09672.16673.08363.09152.52541.78101.7805

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 111.670 C1 C2 H4 112.476
C1 C2 H5 112.476 C2 C1 H6 109.014
C2 C1 H7 111.308 C2 C1 H8 111.308
Br3 C2 H4 105.183 Br3 C2 H5 105.183
H4 C2 H5 109.357 H6 C1 H7 108.292
H6 C1 H8 108.292 H7 C1 H8 108.534
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.746      
2 C 0.376      
3 Br 0.208      
4 H -0.367      
5 H -0.367      
6 H -0.319      
7 H -0.139      
8 H -0.139      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.461 -2.192 0.000 2.240
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.971 -0.997 0.000
y -0.997 -30.016 0.000
z 0.000 0.000 -32.259
Traceless
 xyz
x -0.834 -0.997 0.000
y -0.997 2.099 0.000
z 0.000 0.000 -1.266
Polar
3z2-r2-2.531
x2-y2-1.955
xy-0.997
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.773 -0.034 0.000
y -0.034 9.188 0.000
z 0.000 0.000 6.370


<r2> (average value of r2) Å2
<r2> 106.309
(<r2>)1/2 10.311