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All results from a given calculation for CHClBr2 (Methane, dibromochloro-)

using model chemistry: MP2/6-31G(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 MP2/6-31G(2df,p)
 hartrees
Energy at 0K-5638.701726
Energy at 298.15K-5638.708903
HF Energy-5638.052873
Nuclear repulsion energy583.108344
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 MP2/6-31G(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' 3215 3037 3.68      
2 A' 1238 1169 19.02      
3 A' 786 742 97.88      
4 A' 600 566 2.85      
5 A' 293 276 0.06      
6 A' 179 169 0.01      
7 A" 1202 1135 28.32      
8 A" 736 695 80.91      
9 A" 208 197 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 4227.8 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 3993.2 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 MP2/6-31G(2df,p)
ABC
0.08410 0.04253 0.02884

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.236 0.591 0.000
H2 -1.148 1.180 0.000
Cl3 1.124 1.717 0.000
Br4 -0.236 -0.485 1.572
Br5 -0.236 -0.485 -1.572

Atom - Atom Distances (Å)
  C1 H2 Cl3 Br4 Br5
C11.08541.76651.90481.9048
H21.08542.33442.46462.4646
Cl31.76652.33443.02853.0285
Br41.90482.46463.02853.1447
Br51.90482.46463.02853.1447

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 107.459 H2 C1 Br4 107.856
H2 C1 Br5 107.856 Cl3 C1 Br4 111.104
Cl3 C1 Br5 111.104 Br4 C1 Br5 111.273
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability