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

using model chemistry: LSDA/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at LSDA/6-31G
 hartrees
Energy at 0K-5215.705402
Energy at 298.15K 
HF Energy-5215.705402
Nuclear repulsion energy416.364902
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 LSDA/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 Ag 3073 3011 0.00      
2 Ag 1466 1436 0.00      
3 Ag 1256 1230 0.00      
4 Ag 1127 1104 0.00      
5 Ag 641 628 0.00      
6 Ag 190 186 0.00      
7 Au 3172 3107 0.34      
8 Au 1076 1054 3.62      
9 Au 761 745 11.17      
10 Au 108 106 4.87      
11 Bg 3146 3083 0.00      
12 Bg 1273 1247 0.00      
13 Bg 908 889 0.00      
14 Bu 3082 3019 3.34      
15 Bu 1460 1430 21.34      
16 Bu 1194 1170 31.00      
17 Bu 588 576 81.66      
18 Bu 180 176 9.95      

Unscaled Zero Point Vibrational Energy (zpe) 12349.8 cm-1
Scaled (by 0.9797) Zero Point Vibrational Energy (zpe) 12099.1 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 LSDA/6-31G
ABC
0.92631 0.01973 0.01947

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.504 0.547 0.000
C2 -0.504 -0.547 0.000
Br3 -0.504 2.260 0.000
Br4 0.504 -2.260 0.000
H5 1.130 0.550 0.903
H6 1.130 0.550 -0.903
H7 -1.130 -0.550 0.903
H8 -1.130 -0.550 -0.903

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6 H7 H8
C11.48781.98742.80741.09881.09882.16522.1652
C21.48782.80741.98742.16522.16521.09881.0988
Br31.98742.80744.63132.53162.53163.01733.0173
Br42.80741.98744.63133.01733.01732.53162.5316
H51.09882.16522.53163.01731.80652.51273.0947
H61.09882.16522.53163.01731.80653.09472.5127
H72.16521.09883.01732.53162.51273.09471.8065
H82.16521.09883.01732.53163.09472.51271.8065

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 106.887 C1 C2 H7 112.801
C1 C2 H8 112.801 C2 C1 Br3 106.887
C2 C1 H5 112.801 C2 C1 H6 112.801
Br3 C1 H5 106.654 Br3 C1 H6 106.654
Br4 C2 H7 106.654 Br4 C2 H8 106.654
H5 C1 H6 110.585 H7 C2 H8 110.585
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.543      
2 C -0.543      
3 Br 0.037      
4 Br 0.037      
5 H 0.253      
6 H 0.253      
7 H 0.253      
8 H 0.253      


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 -48.454 1.692 0.000
y 1.692 -56.326 0.000
z 0.000 0.000 -49.084
Traceless
 xyz
x 4.251 1.692 0.000
y 1.692 -7.557 0.000
z 0.000 0.000 3.306
Polar
3z2-r26.612
x2-y27.872
xy1.692
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.407 -2.540 0.000
y -2.540 11.894 0.000
z 0.000 0.000 4.001


<r2> (average value of r2) Å2
<r2> 423.603
(<r2>)1/2 20.582