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 CHClBr2 (Methane, dibromochloro-)

using model chemistry: QCISD(T)/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD(T)/cc-pVTZ
 hartrees
Energy at 0K-5643.765570
Energy at 298.15K 
HF Energy-5642.883667
Nuclear repulsion energy575.866552
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 QCISD(T)/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at QCISD(T)/cc-pVTZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.234 0.596 0.000
H2 -1.158 1.158 0.000
Cl3 1.113 1.744 0.000
Br4 -0.234 -0.491 1.598
Br5 -0.234 -0.491 -1.598

Atom - Atom Distances (Å)
  C1 H2 Cl3 Br4 Br5
C11.08161.76971.93261.9326
H21.08162.34522.47512.4751
Cl31.76972.34523.05983.0598
Br41.93262.47513.05983.1962
Br51.93262.47513.05983.1962

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 108.239 H2 C1 Br4 106.990
H2 C1 Br5 106.990 Cl3 C1 Br4 111.398
Cl3 C1 Br5 111.398 Br4 C1 Br5 111.569
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability