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

using model chemistry: QCISD(T)=FULL/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 QCISD(T)=FULL/6-31G*
 hartrees
Energy at 0K-5218.451997
Energy at 298.15K 
HF Energy-5217.846609
Nuclear repulsion energy415.377792
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 QCISD(T)=FULL/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 3132 3132        
2 Ag 1530 1530        
3 Ag 1322 1322        
4 Ag 1094 1094        
5 Ag 684 684        
6 Ag 193 193        
7 Au 3216 3216        
8 Au 1122 1122        
9 Au 764 764        
10 Au 103 103        
11 Bg 3196 3196        
12 Bg 1315 1315        
13 Bg 960 960        
14 Bu 3138 3138        
15 Bu 1523 1523        
16 Bu 1234 1234        
17 Bu 605 605        
18 Bu 183 183        

Unscaled Zero Point Vibrational Energy (zpe) 12657.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12657.6 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 QCISD(T)=FULL/6-31G*
ABC
0.93653 0.01953 0.01928

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.497 0.570 0.000
C2 -0.497 -0.570 0.000
Br3 -0.497 2.273 0.000
Br4 0.497 -2.273 0.000
H5 1.122 0.570 0.896
H6 1.122 0.570 -0.896
H7 -1.122 -0.570 0.896
H8 -1.122 -0.570 -0.896

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6 H7 H8
C11.51311.97232.84291.09191.09192.17332.1733
C21.51312.84291.97232.17332.17331.09191.0919
Br31.97232.84294.65352.51492.51493.04523.0452
Br42.84291.97234.65353.04523.04522.51492.5149
H51.09192.17332.51493.04521.79162.51623.0889
H61.09192.17332.51493.04521.79163.08892.5162
H72.17331.09193.04522.51492.51623.08891.7916
H82.17331.09193.04522.51493.08892.51621.7916

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 108.592 C1 C2 H7 112.074
C1 C2 H8 112.074 C2 C1 Br3 108.592
C2 C1 H5 112.074 C2 C1 H6 112.074
Br3 C1 H5 106.771 Br3 C1 H6 106.771
Br4 C2 H7 106.771 Br4 C2 H8 106.771
H5 C1 H6 110.260 H7 C2 H8 110.260
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability