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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-5222.822466
Energy at 298.15K-5222.832804
HF Energy-5222.822466
Nuclear repulsion energy417.029466
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 3292 2817 0.00      
2 Ag 1628 1393 0.00      
3 Ag 1438 1230 0.00      
4 Ag 1131 968 0.00      
5 Ag 725 620 0.00      
6 Ag 203 174 0.00      
7 Au 3376 2888 4.40      
8 Au 1224 1047 4.92      
9 Au 816 698 4.16      
10 Au 111 95 6.03      
11 Bg 3353 2869 0.00      
12 Bg 1413 1209 0.00      
13 Bg 1046 895 0.00      
14 Bu 3298 2822 18.08      
15 Bu 1620 1386 8.54      
16 Bu 1346 1152 105.74      
17 Bu 634 542 106.43      
18 Bu 197 168 7.53      

Unscaled Zero Point Vibrational Energy (zpe) 13425.5 cm-1
Scaled (by 0.8556) Zero Point Vibrational Energy (zpe) 11486.8 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
0.95915 0.01962 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 1.107 0.581 0.882
H6 1.107 0.581 -0.882
H7 -1.107 -0.581 0.882
H8 -1.107 -0.581 -0.882

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6 H7 H8
C11.51031.95882.84311.07581.07582.16002.1600
C21.51032.84311.95882.16002.16001.07581.0758
Br31.95882.84314.64332.48592.48593.04683.0468
Br42.84311.95884.64333.04683.04682.48592.4859
H51.07582.16002.48593.04681.76312.50133.0603
H61.07582.16002.48593.04681.76313.06032.5013
H72.16001.07583.04682.48592.50133.06031.7631
H82.16001.07583.04682.48593.06032.50131.7631

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 109.401 C1 C2 H7 112.191
C1 C2 H8 112.191 C2 C1 Br3 109.401
C2 C1 H5 112.191 C2 C1 H6 112.191
Br3 C1 H5 106.333 Br3 C1 H6 106.333
Br4 C2 H7 106.333 Br4 C2 H8 106.333
H5 C1 H6 110.053 H7 C2 H8 110.053
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 -0.473      
2 C -0.473      
3 Br -0.085      
4 Br -0.085      
5 H 0.279      
6 H 0.279      
7 H 0.279      
8 H 0.279      


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 -49.377 1.705 0.000
y 1.705 -57.968 0.000
z 0.000 0.000 -50.013
Traceless
 xyz
x 4.614 1.705 0.000
y 1.705 -8.274 0.000
z 0.000 0.000 3.659
Polar
3z2-r27.319
x2-y28.592
xy1.705
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> 426.268
(<r2>)1/2 20.646