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

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-5638.175596
Energy at 298.15K-5638.182728
HF Energy-5637.683953
Nuclear repulsion energy575.128032
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*
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' 3248 3062 1.61      
2 A' 1278 1205 26.49      
3 A' 800 754 108.59      
4 A' 583 550 7.52      
5 A' 289 272 0.17      
6 A' 177 167 0.02      
7 A" 1204 1135 40.38      
8 A" 682 643 100.33      
9 A" 211 199 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 4235.1 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 3993.7 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*
ABC
0.08246 0.04120 0.02804

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.234 0.613 0.000
H2 -1.165 1.172 0.000
Cl3 1.113 1.747 0.000
Br4 -0.234 -0.494 1.602
Br5 -0.234 -0.494 -1.602

Atom - Atom Distances (Å)
  C1 H2 Cl3 Br4 Br5
C11.08631.76051.94691.9469
H21.08632.34962.49132.4913
Cl31.76052.34963.06603.0660
Br41.94692.49133.06603.2035
Br51.94692.49133.06603.2035

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 108.939 H2 C1 Br4 106.996
H2 C1 Br5 106.996 Cl3 C1 Br4 111.484
Cl3 C1 Br5 111.484 Br4 C1 Br5 110.720
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability