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All results from a given calculation for CH2BrCl (Methane, bromochloro-)

using model chemistry: mPW1PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-3071.537174
Energy at 298.15K-3071.542463
HF Energy-3071.537174
Nuclear repulsion energy220.278388
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 mPW1PW91/6-31G(2df,p)
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' 3148 3005 3.41      
2 A' 1456 1390 0.10      
3 A' 1259 1202 46.36      
4 A' 759 725 99.68      
5 A' 646 617 21.14      
6 A' 232 221 0.30      
7 A" 3231 3084 0.51      
8 A" 1158 1106 0.00      
9 A" 865 826 2.56      

Unscaled Zero Point Vibrational Energy (zpe) 6376.4 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 6087.5 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 mPW1PW91/6-31G(2df,p)
ABC
0.99779 0.07148 0.06756

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.006 0.000
Br2 0.839 -0.705 0.000
Cl3 -1.765 0.917 0.000
H4 0.312 1.534 0.896
H5 0.312 1.534 -0.896

Atom - Atom Distances (Å)
  C1 Br2 Cl3 H4 H5
C11.90641.76701.08581.0858
Br21.90643.06822.46942.4694
Cl31.76703.06822.34452.3445
H41.08582.46942.34451.7918
H51.08582.46942.34451.7918

picture of Methane, bromochloro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Cl3 113.224 Br2 C1 H4 108.076
Br2 C1 H5 108.076 Cl3 C1 H4 108.151
Cl3 C1 H5 108.151 H4 C1 H5 111.200
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.373      
2 Br 0.025      
3 Cl -0.092      
4 H 0.220      
5 H 0.220      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.905 1.299 0.000 1.583
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.628 1.276 0.000
y 1.276 -34.577 0.000
z 0.000 0.000 -36.630
Traceless
 xyz
x -3.024 1.276 0.000
y 1.276 3.052 0.000
z 0.000 0.000 -0.028
Polar
3z2-r2-0.056
x2-y2-4.051
xy1.276
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.465 -1.313 0.000
y -1.313 6.378 0.000
z 0.000 0.000 4.831


<r2> (average value of r2) Å2
<r2> 144.765
(<r2>)1/2 12.032