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 CH2BrCl (Methane, bromochloro-)

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-3059.575846
Energy at 298.15K-3059.581115
HF Energy-3059.575846
Nuclear repulsion energy218.325998
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 B1B95/3-21G
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' 3166 3029 3.16      
2 A' 1506 1441 0.65      
3 A' 1293 1237 36.79      
4 A' 706 676 107.27      
5 A' 640 613 16.97      
6 A' 229 219 0.30      
7 A" 3249 3108 0.19      
8 A" 1193 1142 0.00      
9 A" 867 829 6.24      

Unscaled Zero Point Vibrational Energy (zpe) 6424.8 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 6146.6 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 B1B95/3-21G
ABC
0.96402 0.07048 0.06652

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.027 0.000
Br2 0.847 -0.709 0.000
Cl3 -1.781 0.914 0.000
H4 0.311 1.550 0.898
H5 0.311 1.550 -0.898

Atom - Atom Distances (Å)
  C1 Br2 Cl3 H4 H5
C11.93171.78501.08461.0846
Br21.93173.08942.48912.4891
Cl31.78503.08942.36392.3639
H41.08462.48912.36391.7962
H51.08462.48912.36391.7962

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 112.387 Br2 C1 H4 107.899
Br2 C1 H5 107.899 Cl3 C1 H4 108.453
Cl3 C1 H5 108.453 H4 C1 H5 111.798
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.591      
2 Br -0.009      
3 Cl 0.001      
4 H 0.300      
5 H 0.300      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.139 1.271 0.000 1.707
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.957 1.215 0.000
y 1.215 -34.357 0.000
z 0.000 0.000 -36.768
Traceless
 xyz
x -3.394 1.215 0.000
y 1.215 3.505 0.000
z 0.000 0.000 -0.111
Polar
3z2-r2-0.222
x2-y2-4.600
xy1.215
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.254 -1.345 0.000
y -1.345 5.156 0.000
z 0.000 0.000 3.381


<r2> (average value of r2) Å2
<r2> 146.726
(<r2>)1/2 12.113