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 CHBrCl2 (Methane, bromodichloro-)

using model chemistry: PBEPBE/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/6-31G
 hartrees
Energy at 0K-3529.749622
Energy at 298.15K-3529.753783
HF Energy-3529.749622
Nuclear repulsion energy381.179331
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 PBEPBE/6-31G
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' 3173 3129 0.17      
2 A' 1159 1143 30.16      
3 A' 636 627 167.47      
4 A' 559 551 34.12      
5 A' 305 301 0.37      
6 A' 205 202 0.01      
7 A" 1195 1178 17.04      
8 A" 658 649 204.64      
9 A" 202 199 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 4045.3 cm-1
Scaled (by 0.9862) Zero Point Vibrational Energy (zpe) 3989.5 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 PBEPBE/6-31G
ABC
0.09954 0.05714 0.03730

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.692 -0.125 0.000
H2 -1.610 0.466 0.000
Br3 0.837 1.142 0.000
Cl4 -0.692 -1.167 1.527
Cl5 -0.692 -1.167 -1.527

Atom - Atom Distances (Å)
  C1 H2 Br3 Cl4 Cl5
C11.09221.98571.84881.8488
H21.09222.53812.41742.4174
Br31.98572.53813.16273.1627
Cl41.84882.41743.16273.0545
Cl51.84882.41743.16273.0545

picture of Methane, bromodichloro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Br3 107.519 H2 C1 Cl4 107.781
H2 C1 Cl5 107.781 Br3 C1 Cl4 111.085
Br3 C1 Cl5 111.085 Cl4 C1 Cl5 111.396
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.712      
2 H 0.312      
3 Br 0.161      
4 Cl 0.119      
5 Cl 0.119      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.955 1.136 0.000 1.484
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.584 -0.785 0.000
y -0.785 -50.360 0.000
z 0.000 0.000 -51.337
Traceless
 xyz
x 3.264 -0.785 0.000
y -0.785 -0.899 0.000
z 0.000 0.000 -2.365
Polar
3z2-r2-4.731
x2-y22.775
xy-0.785
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.971 2.409 0.000
y 2.409 6.708 0.000
z 0.000 0.000 7.309


<r2> (average value of r2) Å2
<r2> 248.921
(<r2>)1/2 15.777