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All results from a given calculation for CH2BrCH2Br (Ethane, 1,2-dibromo-)

using model chemistry: ROHF/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at ROHF/6-311G**
 hartrees
Energy at 0K-5222.828329
Energy at 298.15K-5222.838670
HF Energy-5222.828329
Nuclear repulsion energy416.997794
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 ROHF/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3272 2986 0.00      
2 Ag 1616 1475 0.00      
3 Ag 1426 1301 0.00      
4 Ag 1129 1030 0.00      
5 Ag 725 662 0.00      
6 Ag 203 186 0.00      
7 Au 3356 3063 2.23      
8 Au 1211 1106 4.18      
9 Au 814 743 3.97      
10 Au 111 101 5.96      
11 Bg 3334 3043 0.00      
12 Bg 1400 1277 0.00      
13 Bg 1039 948 0.00      
14 Bu 3277 2991 13.87      
15 Bu 1605 1465 8.16      
16 Bu 1335 1218 102.03      
17 Bu 634 578 105.23      
18 Bu 197 179 7.46      

Unscaled Zero Point Vibrational Energy (zpe) 13341.0 cm-1
Scaled (by 0.9126) Zero Point Vibrational Energy (zpe) 12175.0 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 ROHF/6-311G**
ABC
0.95911 0.01961 0.01936

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/6-311G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.491 0.574 0.000
C2 -0.491 -0.574 0.000
Br3 -0.491 2.269 0.000
Br4 0.491 -2.269 0.000
H5 1.106 0.582 0.884
H6 1.106 0.582 -0.884
H7 -1.106 -0.582 0.884
H8 -1.106 -0.582 -0.884

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6 H7 H8
C11.51091.95852.84391.07681.07682.16052.1605
C21.51092.84391.95852.16052.16051.07681.0768
Br31.95852.84394.64372.48522.48523.04813.0481
Br42.84391.95854.64373.04813.04812.48522.4852
H51.07682.16052.48523.04811.76712.49973.0613
H61.07682.16052.48523.04811.76713.06132.4997
H72.16051.07683.04812.48522.49973.06131.7671
H82.16051.07683.04812.48523.06132.49971.7671

picture of Ethane, 1,2-dibromo- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Br4 109.437 C1 C2 H7 112.125
C1 C2 H8 112.125 C2 C1 Br3 109.437
C2 C1 H5 112.125 C2 C1 H6 112.125
Br3 C1 H5 106.266 Br3 C1 H6 106.266
Br4 C2 H7 106.266 Br4 C2 H8 106.266
H5 C1 H6 110.281 H7 C2 H8 110.281
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.229      
2 C -0.229      
3 Br -0.106      
4 Br -0.106      
5 H 0.168      
6 H 0.168      
7 H 0.168      
8 H 0.168      


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


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -49.324 1.729 0.000
y 1.729 -57.867 0.000
z 0.000 0.000 -49.979
Traceless
 xyz
x 4.599 1.729 0.000
y 1.729 -8.215 0.000
z 0.000 0.000 3.616
Polar
3z2-r27.232
x2-y28.542
xy1.729
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 426.307
(<r2>)1/2 20.647