return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CBr2Cl2 (dibromodichloromethane)

using model chemistry: HSEh1PBE/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HSEh1PBE/cc-pVTZ
 hartrees
Energy at 0K-6105.992854
Energy at 298.15K-6105.998727
HF Energy-6105.992854
Nuclear repulsion energy849.486222
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 HSEh1PBE/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 742 713 140.83      
2 A1 390 375 0.16      
3 A1 245 235 0.18      
4 A1 154 148 0.02      
5 A2 175 168 0.00      
6 B1 693 666 138.23      
7 B1 233 224 0.20      
8 B2 775 744 136.61      
9 B2 266 256 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 1836.2 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 1764.7 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 HSEh1PBE/cc-pVTZ
ABC
0.04564 0.03114 0.02718

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.403
Cl2 0.000 1.441 1.416
Cl3 0.000 -1.441 1.416
Br4 1.584 0.000 -0.722
Br5 -1.584 0.000 -0.722

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 Br4 Br5
C11.76181.76181.94291.9429
Cl21.76182.88213.02643.0264
Cl31.76182.88213.02643.0264
Br41.94293.02643.02643.1684
Br51.94293.02643.02643.1684

picture of dibromodichloromethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 109.759 Cl2 C1 Br4 109.455
Cl2 C1 Br5 109.455 Cl3 C1 Br4 109.455
Cl3 C1 Br5 109.455 Br4 C1 Br5 109.248
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.089      
2 Cl -0.004      
3 Cl -0.004      
4 Br 0.049      
5 Br 0.049      


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 -0.068 0.068
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -65.134 0.000 0.000
y 0.000 -66.229 0.000
z 0.000 0.000 -65.710
Traceless
 xyz
x 0.835 0.000 0.000
y 0.000 -0.807 0.000
z 0.000 0.000 -0.028
Polar
3z2-r2-0.056
x2-y21.094
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.600 0.000 0.000
y 0.000 9.881 0.000
z 0.000 0.000 10.632


<r2> (average value of r2) Å2
<r2> 392.979
(<r2>)1/2 19.824