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All results from a given calculation for CH2BrCBr3 (1,1,1,2-tetrabromo ethane)

using model chemistry: TPSSh/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 TPSSh/cc-pVDZ
 hartrees
Energy at 0K-10373.587036
Energy at 298.15K-10373.600363
HF Energy-10373.587036
Nuclear repulsion energy1562.661932
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 TPSSh/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' 3099 3014 2.69      
2 A' 1430 1390 4.35      
3 A' 1229 1195 23.56      
4 A' 1041 1012 8.69      
5 A' 695 676 44.59      
6 A' 605 588 106.74      
7 A' 432 420 16.29      
8 A' 227 221 0.51      
9 A' 184 179 0.44      
10 A' 142 138 0.02      
11 A' 91 89 0.26      
12 A" 3180 3092 0.78      
13 A" 1174 1142 15.77      
14 A" 895 870 47.94      
15 A" 599 583 89.01      
16 A" 267 260 2.39      
17 A" 149 145 0.04      
18 A" 78 76 0.22      

Unscaled Zero Point Vibrational Energy (zpe) 7758.6 cm-1
Scaled (by 0.9724) Zero Point Vibrational Energy (zpe) 7544.5 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 TPSSh/cc-pVDZ
ABC
0.02407 0.01448 0.01318

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.189 0.345 0.000
C2 -1.335 0.450 0.000
Br3 0.846 2.210 0.000
Br4 0.846 -0.562 1.604
Br5 0.846 -0.562 -1.604
Br6 -2.245 -1.278 0.000
H7 -1.662 0.980 0.904
H8 -1.662 0.980 -0.904

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 Br5 Br6 H7 H8
C11.52691.97801.95621.95622.92492.15462.1546
C21.52692.80212.88992.88991.95311.09711.0971
Br31.97802.80213.20333.20334.66042.93542.9354
Br41.95622.88993.20333.20763.55483.02553.8666
Br51.95622.88993.20333.20763.55483.86663.0255
Br62.92491.95314.66043.55483.55482.50062.5006
H72.15461.09712.93543.02553.86662.50061.8071
H82.15461.09712.93543.86663.02552.50061.8071

picture of 1,1,1,2-tetrabromo ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Br6 113.824 C1 C2 H7 109.299
C1 C2 H8 109.299 C2 C1 Br3 105.439
C2 C1 Br4 111.536 C2 C1 Br5 111.536
Br3 C1 Br4 109.016 Br3 C1 Br5 109.016
Br4 C1 Br5 110.142 Br6 C2 H7 106.747
Br6 C2 H8 106.747 H7 C2 H8 110.896
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.407      
2 C 0.018      
3 Br 0.053      
4 Br 0.075      
5 Br 0.075      
6 Br -0.052      
7 H 0.119      
8 H 0.119      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.600 1.093 0.000 1.247
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.622 2.121 0.000
y 2.121 14.265 0.000
z 0.000 0.000 12.116


<r2> (average value of r2) Å2
<r2> 755.982
(<r2>)1/2 27.495