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 CHClBr2 (Methane, dibromochloro-)

using model chemistry: B3LYP/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/cc-pVQZ
 hartrees
Energy at 0K-5647.413307
Energy at 298.15K-5647.420326
HF Energy-5647.413307
Nuclear repulsion energy571.770903
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 B3LYP/cc-pVQZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3185 3086 3.83      
2 A' 1212 1175 21.19      
3 A' 721 699 125.78      
4 A' 561 543 8.59      
5 A' 276 268 0.05      
6 A' 163 158 0.01      
7 A" 1166 1130 38.06      
8 A" 634 614 125.84      
9 A" 197 191 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 4057.6 cm-1
Scaled (by 0.9688) Zero Point Vibrational Energy (zpe) 3931.0 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 B3LYP/cc-pVQZ
ABC
0.08204 0.04046 0.02763

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.231 0.599 0.000
H2 -1.160 1.147 0.000
Cl3 1.101 1.762 0.000
Br4 -0.231 -0.496 1.613
Br5 -0.231 -0.496 -1.613

Atom - Atom Distances (Å)
  C1 H2 Cl3 Br4 Br5
C11.07851.76811.94951.9495
H21.07852.34332.48242.4824
Cl31.76812.34333.07803.0780
Br41.94952.48243.07803.2259
Br51.94952.48243.07803.2259

picture of Methane, dibromochloro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Cl3 108.370 H2 C1 Br4 106.561
H2 C1 Br5 106.561 Cl3 C1 Br4 111.684
Cl3 C1 Br5 111.684 Br4 C1 Br5 111.656
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.236      
2 H 0.186      
3 Cl -0.003      
4 Br 0.026      
5 Br 0.026      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.823 0.477 0.000 0.952
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -54.864 -1.092 0.000
y -1.092 -54.662 0.000
z 0.000 0.000 -55.113
Traceless
 xyz
x 0.023 -1.092 0.000
y -1.092 0.327 0.000
z 0.000 0.000 -0.349
Polar
3z2-r2-0.699
x2-y2-0.203
xy-1.092
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.178 1.502 0.000
y 1.502 9.982 0.000
z 0.000 0.000 12.073


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000