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

using model chemistry: ROHF/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-5223.023062
Energy at 298.15K-5223.033403
HF Energy-5223.023062
Nuclear repulsion energy417.591047
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/cc-pVTZ
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 3263 2940 0.00      
2 Ag 1615 1455 0.00      
3 Ag 1418 1278 0.00      
4 Ag 1127 1015 0.00      
5 Ag 725 653 0.00      
6 Ag 203 183 0.00      
7 Au 3346 3015 0.96      
8 Au 1205 1086 2.70      
9 Au 813 732 3.21      
10 Au 109 99 5.93      
11 Bg 3322 2993 0.00      
12 Bg 1398 1259 0.00      
13 Bg 1035 933 0.00      
14 Bu 3270 2946 12.41      
15 Bu 1608 1449 8.77      
16 Bu 1328 1196 89.33      
17 Bu 636 573 99.07      
18 Bu 196 177 7.00      

Unscaled Zero Point Vibrational Energy (zpe) 13308.3 cm-1
Scaled (by 0.901) Zero Point Vibrational Energy (zpe) 11990.8 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/cc-pVTZ
ABC
0.96260 0.01967 0.01941

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.490 0.573 0.000
C2 -0.490 -0.573 0.000
Br3 -0.490 2.266 0.000
Br4 0.490 -2.266 0.000
H5 1.105 0.581 0.881
H6 1.105 0.581 -0.881
H7 -1.105 -0.581 0.881
H8 -1.105 -0.581 -0.881

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6 H7 H8
C11.50791.95592.83961.07481.07482.15672.1567
C21.50792.83961.95592.15672.15671.07481.0748
Br31.95592.83964.63732.48192.48193.04333.0433
Br42.83961.95594.63733.04333.04332.48192.4819
H51.07482.15672.48193.04331.76282.49633.0560
H61.07482.15672.48193.04331.76283.05602.4963
H72.15671.07483.04332.48192.49633.05601.7628
H82.15671.07483.04332.48193.05602.49631.7628

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 109.450 C1 C2 H7 112.152
C1 C2 H8 112.152 C2 C1 Br3 109.450
C2 C1 H5 112.152 C2 C1 H6 112.152
Br3 C1 H5 106.285 Br3 C1 H6 106.285
Br4 C2 H7 106.285 Br4 C2 H8 106.285
H5 C1 H6 110.176 H7 C2 H8 110.176
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.117      
2 C -0.117      
3 Br -0.176      
4 Br -0.176      
5 H 0.147      
6 H 0.147      
7 H 0.147      
8 H 0.147      


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 -49.249 1.816 0.000
y 1.816 -57.697 0.000
z 0.000 0.000 -49.792
Traceless
 xyz
x 4.495 1.816 0.000
y 1.816 -8.177 0.000
z 0.000 0.000 3.681
Polar
3z2-r27.363
x2-y28.448
xy1.816
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> 425.122
(<r2>)1/2 20.618