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

using model chemistry: PBEPBEultrafine/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A1
Energy calculated at PBEPBEultrafine/6-311G*
 hartrees
Energy at 0K-5224.770343
Energy at 298.15K-5224.777856
HF Energy-5224.770343
Nuclear repulsion energy424.427727
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 PBEPBEultrafine/6-311G*
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 3147 3114 1.73      
2 A1 1585 1568 39.92      
3 A1 1152 1140 1.27      
4 A1 570 564 8.41      
5 A1 103 102 0.01      
6 A2 834 825 0.00      
7 A2 370 366 0.00      
8 B1 653 646 78.37      
9 B2 3125 3093 12.18      
10 B2 1248 1235 39.62      
11 B2 740 732 78.15      
12 B2 464 459 2.72      

Unscaled Zero Point Vibrational Energy (zpe) 6994.9 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 6922.2 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 PBEPBEultrafine/6-311G*
ABC
0.28697 0.03283 0.02946

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.668 1.249
C2 0.000 -0.668 1.249
Br3 0.000 1.779 -0.277
Br4 0.000 -1.779 -0.277
H5 0.000 1.222 2.189
H6 0.000 -1.222 2.189

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6
C11.33581.88802.88411.09112.1109
C21.33582.88411.88802.11091.0911
Br31.88802.88413.55882.52813.8847
Br42.88411.88803.55883.88472.5281
H51.09112.11092.52813.88472.4446
H62.11091.09113.88472.52812.4446

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 126.066 C1 C2 H6 120.537
C2 C1 Br3 126.066 C2 C1 H5 120.537
Br3 C1 H5 113.397 Br4 C2 H6 113.397
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.311      
2 C -0.311      
3 Br 0.049      
4 Br 0.049      
5 H 0.263      
6 H 0.263      


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 1.580 1.580
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -50.587 0.000 0.000
y 0.000 -48.084 0.000
z 0.000 0.000 -42.453
Traceless
 xyz
x -5.318 0.000 0.000
y 0.000 -1.564 0.000
z 0.000 0.000 6.882
Polar
3z2-r213.765
x2-y2-2.503
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.981 0.000 0.000
y 0.000 11.587 0.000
z 0.000 0.000 8.162


<r2> (average value of r2) Å2
<r2> 293.035
(<r2>)1/2 17.118