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

using model chemistry: B97D3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/6-31G*
 hartrees
Energy at 0K-2652.186688
Energy at 298.15K 
HF Energy-2652.186688
Nuclear repulsion energy162.114028
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 B97D3/6-31G*
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' 3073 3013 33.17 57.22 0.49 0.65
2 A' 3058 2998 3.28 127.79 0.24 0.38
3 A' 2992 2934 24.82 167.48 0.10 0.18
4 A' 1502 1473 2.09 11.98 0.73 0.84
5 A' 1487 1458 0.35 13.55 0.74 0.85
6 A' 1409 1381 3.47 8.51 0.64 0.78
7 A' 1262 1237 64.03 3.96 0.64 0.78
8 A' 1068 1047 0.14 4.88 0.53 0.70
9 A' 961 942 16.89 3.72 0.70 0.83
10 A' 533 522 17.70 17.99 0.26 0.41
11 A' 283 278 3.07 2.83 0.39 0.56
12 A" 3131 3070 18.24 30.19 0.75 0.86
13 A" 3092 3032 8.52 87.70 0.75 0.86
14 A" 1486 1457 7.69 19.39 0.75 0.86
15 A" 1256 1231 0.55 5.35 0.75 0.86
16 A" 1017 997 0.06 6.57 0.75 0.86
17 A" 766 751 4.50 0.45 0.75 0.86
18 A" 262 257 0.01 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14318.8 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 14038.2 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 B97D3/6-31G*
ABC
0.98945 0.12330 0.11442

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.579 -2.047 0.000
C2 0.606 -1.096 0.000
Br3 0.000 0.804 0.000
H4 1.228 -1.193 0.895
H5 1.228 -1.193 -0.895
H6 -0.212 -3.086 0.000
H7 -1.204 -1.900 0.890
H8 -1.204 -1.900 -0.890

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51902.90832.19002.19001.10241.09781.0978
C21.51901.99401.09461.09462.15162.17122.1712
Br32.90831.99402.50932.50933.89543.09023.0902
H42.19001.09462.50931.79022.54162.53293.0990
H52.19001.09462.50931.79022.54163.09902.5329
H61.10242.15163.89542.54162.54161.78451.7845
H71.09782.17123.09022.53293.09901.78451.7809
H81.09782.17123.09023.09902.53291.78451.7809

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 111.044 C1 C2 H4 112.841
C1 C2 H5 112.841 C2 C1 H6 109.296
C2 C1 H7 111.120 C2 C1 H8 111.120
Br3 C2 H4 104.906 Br3 C2 H5 104.906
H4 C2 H5 109.722 H6 C1 H7 108.406
H6 C1 H8 108.406 H7 C1 H8 108.413
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.452      
2 C -0.295      
3 Br -0.151      
4 H 0.193      
5 H 0.193      
6 H 0.160      
7 H 0.176      
8 H 0.176      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.453 -2.128 0.000 2.175
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.219 -0.996 0.000
y -0.996 -29.286 0.000
z 0.000 0.000 -31.582
Traceless
 xyz
x -0.785 -0.996 0.000
y -0.996 2.114 0.000
z 0.000 0.000 -1.329
Polar
3z2-r2-2.658
x2-y2-1.933
xy-0.996
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.944 -0.209 0.000
y -0.209 7.630 0.000
z 0.000 0.000 4.667


<r2> (average value of r2) Å2
<r2> 107.063
(<r2>)1/2 10.347