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All results from a given calculation for CHBrCHBr (Ethene, 1,2-dibromo-, (E)-)

using model chemistry: HF/daug-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 HF/daug-cc-pVTZ
 hartrees
Energy at 0K-5221.821312
Energy at 298.15K-5221.828797
HF Energy-5221.821312
Nuclear repulsion energy389.141375
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 HF/daug-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 3393 3069 0.00      
2 Ag 1778 1609 0.00      
3 Ag 1398 1264 0.00      
4 Ag 818 740 0.00      
5 Ag 236 213 0.00      
6 Au 1050 950 54.86      
7 Au 188 170 0.18      
8 Bg 888 803 0.00      
9 Bu 3387 3064 18.70      
10 Bu 1292 1169 54.16      
11 Bu 736 666 77.51      
12 Bu 214 194 2.47      

Unscaled Zero Point Vibrational Energy (zpe) 7688.7 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 6955.2 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 HF/daug-cc-pVTZ
ABC
1.76674 0.02012 0.01989

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.374 0.534 0.000
C2 0.374 -0.534 0.000
Br3 0.374 2.266 0.000
Br4 -0.374 -2.266 0.000
H5 -1.443 0.522 0.000
H6 1.443 -0.522 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.30491.88652.80051.06842.1016
C21.30492.80051.88652.10161.0684
Br31.88652.80054.59362.51862.9856
Br42.80051.88654.59362.98562.5186
H51.06842.10162.51862.98563.0682
H62.10161.06842.98562.51863.0682

picture of Ethene, 1,2-dibromo-, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Br4 121.617 C1 C2 H6 124.331
C2 C1 Br3 121.617 C2 C1 H5 124.331
Br3 C1 H5 114.053 Br4 C2 H6 114.053
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.655      
2 C -0.655      
3 Br -0.004      
4 Br -0.004      
5 H 0.659      
6 H 0.659      


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 -46.383 -0.682 0.000
y -0.682 -51.548 0.000
z 0.000 0.000 -50.840
Traceless
 xyz
x 4.810 -0.682 0.000
y -0.682 -2.936 0.000
z 0.000 0.000 -1.874
Polar
3z2-r2-3.748
x2-y25.164
xy-0.682
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.197 0.707 0.000
y 0.707 15.409 0.000
z 0.000 0.000 7.149


<r2> (average value of r2) Å2
<r2> 410.059
(<r2>)1/2 20.250