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

using model chemistry: B2PLYP=FULLultrafine/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP=FULLultrafine/TZVP
 hartrees
Energy at 0K-2652.941210
Energy at 298.15K 
HF Energy-2652.738528
Nuclear repulsion energy163.287699
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 B2PLYP=FULLultrafine/TZVP
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' 3137 3137 28.36 62.68 0.31 0.47
2 A' 3124 3124 0.86 136.65 0.26 0.41
3 A' 3060 3060 18.91 183.94 0.06 0.11
4 A' 1516 1516 2.63 6.57 0.75 0.86
5 A' 1505 1505 1.10 11.08 0.74 0.85
6 A' 1436 1436 4.55 3.28 0.69 0.82
7 A' 1305 1305 63.73 5.12 0.63 0.77
8 A' 1093 1093 0.04 4.56 0.35 0.52
9 A' 986 986 14.86 5.27 0.74 0.85
10 A' 569 569 16.82 20.32 0.30 0.46
11 A' 288 288 2.07 2.40 0.49 0.65
12 A" 3196 3196 9.21 34.23 0.75 0.86
13 A" 3154 3154 8.44 80.38 0.75 0.86
14 A" 1502 1502 9.39 11.02 0.75 0.86
15 A" 1283 1283 0.61 3.63 0.75 0.86
16 A" 1049 1049 0.34 4.62 0.75 0.86
17 A" 785 785 3.38 0.20 0.75 0.86
18 A" 269 269 0.01 0.08 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14627.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14627.9 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 B2PLYP=FULLultrafine/TZVP
ABC
1.01165 0.12467 0.11580

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.573 -2.039 0.000
C2 0.598 -1.083 0.000
Br3 0.000 0.799 0.000
H4 1.216 -1.185 0.886
H5 1.216 -1.185 -0.886
H6 -0.197 -3.065 0.000
H7 -1.194 -1.901 0.883
H8 -1.194 -1.901 -0.883

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51172.89502.17092.17091.09231.08831.0883
C21.51171.97451.08481.08482.13562.15912.1591
Br32.89501.97452.48962.48963.86863.08173.0817
H42.17091.08482.48961.77212.51312.51413.0740
H52.17091.08482.48961.77212.51313.07402.5141
H61.09232.13563.86862.51312.51311.76801.7680
H71.08832.15913.08172.51413.07401.76801.7656
H81.08832.15913.08173.07402.51411.76801.7656

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 111.595 C1 C2 H4 112.424
C1 C2 H5 112.424 C2 C1 H6 109.136
C2 C1 H7 111.246 C2 C1 H8 111.246
Br3 C2 H4 105.194 Br3 C2 H5 105.194
H4 C2 H5 109.526 H6 C1 H7 108.349
H6 C1 H8 108.349 H7 C1 H8 108.426
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.315      
2 C -0.145      
3 Br -0.164      
4 H 0.134      
5 H 0.134      
6 H 0.111      
7 H 0.123      
8 H 0.123      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.489 -2.163 0.000 2.218
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.269 -1.069 0.001
y -1.069 -30.388 0.024
z 0.001 0.024 -32.532
Traceless
 xyz
x -0.809 -1.069 0.001
y -1.069 2.012 0.024
z 0.001 0.024 -1.203
Polar
3z2-r2-2.406
x2-y2-1.881
xy-1.069
xz0.001
yz0.024


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.220 -0.296 -0.000
y -0.296 8.208 -0.001
z -0.000 -0.001 4.863


<r2> (average value of r2) Å2
<r2> 106.654
(<r2>)1/2 10.327