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 CBrCl3 (Methane, bromotrichloro-)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-3970.709233
Energy at 298.15K-3970.712433
HF Energy-3970.078097
Nuclear repulsion energy613.440939
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 MP2/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 747 711 131.13      
2 A1 415 395 0.01      
3 A1 255 243 0.06      
4 E 740 704 134.91      
4 E 740 704 134.91      
5 E 299 284 0.00      
5 E 299 284 0.00      
6 E 197 187 0.00      
6 E 197 187 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 1943.6 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 1848.9 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 MP2/3-21G*
ABC
0.05617 0.03800 0.03800

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.414
Br2 0.000 0.000 1.536
Cl3 0.000 1.691 -1.005
Cl4 1.465 -0.846 -1.005
Cl5 -1.465 -0.846 -1.005

Atom - Atom Distances (Å)
  C1 Br2 Cl3 Cl4 Cl5
C11.94941.79181.79181.7918
Br21.94943.05253.05253.0525
Cl31.79183.05252.92952.9295
Cl41.79183.05252.92952.9295
Cl51.79183.05252.92952.9295

picture of Methane, bromotrichloro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Cl3 109.282 Br2 C1 Cl4 109.282
Br2 C1 Cl5 109.282 Cl3 C1 Cl4 109.660
Cl3 C1 Cl5 109.660 Cl4 C1 Cl5 109.660
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability