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

using model chemistry: BLYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at BLYP/6-31+G**
 hartrees
Energy at 0K-5220.814252
Energy at 298.15K-5220.821752
HF Energy-5220.814252
Nuclear repulsion energy420.740452
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 BLYP/6-31+G**
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 3153 3136 0.77      
2 A1 1575 1566 40.71      
3 A1 1155 1149 1.31      
4 A1 546 543 8.64      
5 A1 97 96 0.02      
6 A2 852 847 0.00      
7 A2 391 389 0.00      
8 B1 665 661 69.14      
9 B2 3132 3115 15.10      
10 B2 1247 1240 51.84      
11 B2 708 705 84.09      
12 B2 457 455 3.66      

Unscaled Zero Point Vibrational Energy (zpe) 6988.5 cm-1
Scaled (by 0.9947) Zero Point Vibrational Energy (zpe) 6951.4 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 BLYP/6-31+G**
ABC
0.28528 0.03211 0.02886

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.670 1.254
C2 0.000 -0.670 1.254
Br3 0.000 1.800 -0.278
Br4 0.000 -1.800 -0.278
H5 0.000 1.225 2.193
H6 0.000 -1.225 2.193

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.34031.90262.90591.09082.1149
C21.34032.90591.90262.11491.0908
Br31.90262.90593.59942.53643.9051
Br42.90591.90263.59943.90512.5364
H51.09082.11492.53643.90512.4494
H62.11491.09083.90512.53642.4494

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 126.418 C1 C2 H6 120.554
C2 C1 Br3 126.418 C2 C1 H5 120.554
Br3 C1 H5 113.029 Br4 C2 H6 113.029
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.086      
2 C -0.086      
3 Br -0.077      
4 Br -0.077      
5 H 0.163      
6 H 0.163      


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 1.629 1.629
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -51.215 0.000 0.000
y 0.000 -49.363 0.000
z 0.000 0.000 -43.226
Traceless
 xyz
x -4.920 0.000 0.000
y 0.000 -2.143 0.000
z 0.000 0.000 7.063
Polar
3z2-r214.126
x2-y2-1.852
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.384 0.000 0.000
y 0.000 13.291 0.000
z 0.000 0.000 9.350


<r2> (average value of r2) Å2
<r2> 298.914
(<r2>)1/2 17.289