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

using model chemistry: ROHF/cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-5222.844174
Energy at 298.15K-5222.854501
HF Energy-5222.844174
Nuclear repulsion energy416.541494
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-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 Ag 3284 2827 0.00      
2 Ag 1598 1376 0.00      
3 Ag 1404 1208 0.00      
4 Ag 1136 978 0.00      
5 Ag 719 619 0.00      
6 Ag 203 175 0.00      
7 Au 3374 2904 0.77      
8 Au 1191 1025 3.12      
9 Au 810 697 3.81      
10 Au 111 96 5.67      
11 Bg 3353 2886 0.00      
12 Bg 1383 1190 0.00      
13 Bg 1023 880 0.00      
14 Bu 3287 2829 11.96      
15 Bu 1584 1363 8.64      
16 Bu 1309 1127 91.13      
17 Bu 630 542 103.22      
18 Bu 197 169 6.97      

Unscaled Zero Point Vibrational Energy (zpe) 13296.9 cm-1
Scaled (by 0.8607) Zero Point Vibrational Energy (zpe) 11444.7 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-pVDZ
ABC
0.95341 0.01959 0.01933

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

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 2.271 0.000
Br4 0.491 -2.271 0.000
H5 1.112 0.581 0.889
H6 1.112 0.581 -0.889
H7 -1.112 -0.581 0.889
H8 -1.112 -0.581 -0.889

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6 H7 H8
C11.51031.96092.84441.08431.08432.16642.1664
C21.51032.84441.96092.16642.16641.08431.0843
Br31.96092.84444.64652.49292.49293.05113.0511
Br42.84441.96094.64653.05113.05112.49292.4929
H51.08432.16642.49293.05111.77802.50913.0752
H61.08432.16642.49293.05111.77803.07522.5091
H72.16641.08433.05112.49292.50913.07521.7780
H82.16641.08433.05112.49293.07522.50911.7780

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 109.369 C1 C2 H7 112.183
C1 C2 H8 112.183 C2 C1 Br3 109.369
C2 C1 H5 112.183 C2 C1 H6 112.183
Br3 C1 H5 106.305 Br3 C1 H6 106.305
Br4 C2 H7 106.305 Br4 C2 H8 106.305
H5 C1 H6 110.153 H7 C2 H8 110.153
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.075      
2 C -0.075      
3 Br -0.134      
4 Br -0.134      
5 H 0.105      
6 H 0.105      
7 H 0.105      
8 H 0.105      


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 -48.942 1.635 0.000
y 1.635 -57.256 0.000
z 0.000 0.000 -49.569
Traceless
 xyz
x 4.470 1.635 0.000
y 1.635 -8.000 0.000
z 0.000 0.000 3.530
Polar
3z2-r27.060
x2-y28.314
xy1.635
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> 426.561
(<r2>)1/2 20.653