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

using model chemistry: TPSSh/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at TPSSh/aug-cc-pVTZ
 hartrees
Energy at 0K-5225.654582
Energy at 298.15K-5225.662191
HF Energy-5225.654582
Nuclear repulsion energy428.557101
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 TPSSh/aug-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 A1 3214 3102 0.09      
2 A1 1620 1564 35.29      
3 A1 1169 1129 1.56      
4 A1 592 571 8.05      
5 A1 103 100 0.04      
6 A2 892 861 0.00      
7 A2 380 367 0.00      
8 B1 686 663 57.29      
9 B2 3191 3080 15.18      
10 B2 1282 1237 48.60      
11 B2 761 734 63.24      
12 B2 475 459 2.81      

Unscaled Zero Point Vibrational Energy (zpe) 7183.0 cm-1
Scaled (by 0.9652) Zero Point Vibrational Energy (zpe) 6933.0 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 TPSSh/aug-cc-pVTZ
ABC
0.28743 0.03371 0.03017

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.663 1.250
C2 0.000 -0.663 1.250
Br3 0.000 1.756 -0.276
Br4 0.000 -1.756 -0.276
H5 0.000 1.218 2.178
H6 0.000 -1.218 2.178

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.32561.87732.85991.08102.0969
C21.32562.85991.87732.09691.0810
Br31.87732.85993.51142.51243.8554
Br42.85991.87733.51143.85542.5124
H51.08102.09692.51243.85542.4353
H62.09691.08103.85542.51242.4353

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 125.604 C1 C2 H6 120.882
C2 C1 Br3 125.604 C2 C1 H5 120.882
Br3 C1 H5 113.515 Br4 C2 H6 113.515
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.239      
2 C -0.239      
3 Br 0.039      
4 Br 0.039      
5 H 0.200      
6 H 0.200      


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 1.674 1.674
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.321 0.000 0.000
y 0.000 13.627 0.000
z 0.000 0.000 9.907


<r2> (average value of r2) Å2
<r2> 287.079
(<r2>)1/2 16.943