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

using model chemistry: B2PLYP=FULLultrafine/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 B2PLYP=FULLultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-2652.847386
Energy at 298.15K 
HF Energy-2652.694818
Nuclear repulsion energy163.013952
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/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' 3136 3018 22.09 68.32 0.58 0.73
2 A' 3119 3002 5.30 128.36 0.12 0.21
3 A' 3055 2940 18.96 206.60 0.05 0.10
4 A' 1484 1429 1.81 3.34 0.75 0.86
5 A' 1472 1416 0.91 5.08 0.69 0.82
6 A' 1400 1347 4.83 1.39 0.62 0.77
7 A' 1271 1224 52.60 6.07 0.32 0.49
8 A' 1086 1045 0.12 4.51 0.14 0.25
9 A' 979 942 15.19 3.55 0.66 0.80
10 A' 567 546 16.58 21.42 0.19 0.31
11 A' 289 278 2.00 2.85 0.29 0.44
12 A" 3192 3072 7.57 31.49 0.75 0.86
13 A" 3155 3036 7.80 68.12 0.75 0.86
14 A" 1470 1415 9.22 5.44 0.75 0.86
15 A" 1261 1214 0.27 0.82 0.75 0.86
16 A" 1033 994 0.10 1.25 0.75 0.86
17 A" 771 742 3.09 0.01 0.75 0.86
18 A" 260 250 0.01 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14501.0 cm-1
Scaled (by 0.9623) Zero Point Vibrational Energy (zpe) 13954.3 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/aug-cc-pVDZ
ABC
0.99861 0.12466 0.11571

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.576 -2.038 0.000
C2 0.602 -1.082 0.000
Br3 0.000 0.799 0.000
H4 1.223 -1.185 0.894
H5 1.223 -1.185 -0.894
H6 -0.200 -3.072 0.000
H7 -1.200 -1.896 0.890
H8 -1.200 -1.896 -0.890

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51712.89502.18342.18341.10041.09661.0966
C21.51711.97501.09381.09382.14532.16872.1687
Br32.89501.97502.49602.49603.87623.08183.0818
H42.18341.09382.49601.78832.52752.52613.0929
H52.18341.09382.49601.78832.52753.09292.5261
H61.10042.14533.87622.52752.52751.78241.7824
H71.09662.16873.08182.52613.09291.78241.7808
H81.09662.16873.08183.09292.52611.78241.7808

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 111.322 C1 C2 H4 112.480
C1 C2 H5 112.480 C2 C1 H6 109.049
C2 C1 H7 111.122 C2 C1 H8 111.122
Br3 C2 H4 105.203 Br3 C2 H5 105.203
H4 C2 H5 109.664 H6 C1 H7 108.446
H6 C1 H8 108.446 H7 C1 H8 108.580
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.659      
2 C 0.037      
3 Br 0.154      
4 H -0.178      
5 H -0.178      
6 H -0.171      
7 H -0.161      
8 H -0.161      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.476 -2.180 0.000 2.232
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.467 -1.026 0.002
y -1.026 -30.600 0.019
z 0.002 0.019 -32.736
Traceless
 xyz
x -0.799 -1.026 0.002
y -1.026 2.001 0.019
z 0.002 0.019 -1.202
Polar
3z2-r2-2.405
x2-y2-1.867
xy-1.026
xz0.002
yz0.019


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.555 -0.091 -0.001
y -0.091 9.114 0.001
z -0.001 0.001 6.143


<r2> (average value of r2) Å2
<r2> 106.936
(<r2>)1/2 10.341