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

using model chemistry: HF/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at HF/TZVP
 hartrees
Energy at 0K-5221.712732
Energy at 298.15K-5221.720541
HF Energy-5221.712732
Nuclear repulsion energy426.686064
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/TZVP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3390 3080 0.60      
2 A1 1790 1626 35.46      
3 A1 1296 1178 2.89      
4 A1 613 557 10.75      
5 A1 117 107 0.07      
6 A2 1052 955 0.00      
7 A2 419 381 0.00      
8 B1 775 704 72.15      
9 B2 3366 3058 18.51      
10 B2 1407 1278 69.22      
11 B2 816 741 69.47      
12 B2 504 458 4.01      

Unscaled Zero Point Vibrational Energy (zpe) 7771.8 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 7061.4 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/TZVP
ABC
0.29250 0.03306 0.02970

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.653 1.238
C2 0.000 -0.653 1.238
Br3 0.000 1.774 -0.274
Br4 0.000 -1.774 -0.274
H5 0.000 1.193 2.164
H6 0.000 -1.193 2.164

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.30691.88242.86021.07102.0652
C21.30692.86021.88242.06521.0710
Br31.88242.86023.54852.50613.8400
Br42.86021.88243.54853.84002.5061
H51.07102.06522.50613.84002.3856
H62.06521.07103.84002.50612.3856

picture of Ethene, 1,2-dibromo-, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Br4 126.541 C1 C2 H6 120.237
C2 C1 Br3 126.541 C2 C1 H5 120.237
Br3 C1 H5 113.222 Br4 C2 H6 113.222
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.082      
2 C -0.082      
3 Br -0.083      
4 Br -0.083      
5 H 0.165      
6 H 0.165      


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 2.058 2.058
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -51.009 0.000 0.000
y 0.000 -49.644 0.000
z 0.000 0.000 -42.607
Traceless
 xyz
x -4.884 0.000 0.000
y 0.000 -2.836 0.000
z 0.000 0.000 7.719
Polar
3z2-r215.439
x2-y2-1.365
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.720 0.000 0.000
y 0.000 11.218 0.000
z 0.000 0.000 7.961


<r2> (average value of r2) Å2
<r2> 291.173
(<r2>)1/2 17.064