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

using model chemistry: MP2=FULL/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 MP2=FULL/3-21G*
 hartrees
Energy at 0K-5616.675588
Energy at 298.15K-5616.682683
HF Energy-5616.150651
Nuclear repulsion energy573.525836
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=FULL/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' 3221 3054 1.08      
2 A' 1274 1208 20.63      
3 A' 724 686 108.62      
4 A' 586 556 3.75      
5 A' 280 266 0.09      
6 A' 170 161 0.05      
7 A" 1221 1157 34.23      
8 A" 704 668 92.28      
9 A" 204 194 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 4192.4 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 3974.3 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=FULL/3-21G*
ABC
0.08122 0.04124 0.02795

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.243 0.621 0.000
H2 -1.157 1.207 0.000
Cl3 1.155 1.737 0.000
Br4 -0.243 -0.492 1.596
Br5 -0.243 -0.492 -1.596

Atom - Atom Distances (Å)
  C1 H2 Cl3 Br4 Br5
C11.08531.78901.94621.9462
H21.08532.37192.50412.5041
Cl31.78902.37193.07793.0779
Br41.94622.50413.07793.1925
Br51.94622.50413.07793.1925

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 108.739 H2 C1 Br4 107.987
H2 C1 Br5 107.987 Cl3 C1 Br4 110.908
Cl3 C1 Br5 110.908 Br4 C1 Br5 110.207
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability