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

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CBS-Q
 hartrees
Energy at 0K-5644.122860
Energy at 298.15K-5644.117073
HF Energy-5637.856815
Nuclear repulsion energy579.199737
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 CBS-Q
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' 3394 3394 0.61      
2 A' 1356 1356 35.38      
3 A' 843 843 125.75      
4 A' 621 621 6.03      
5 A' 307 307 0.15      
6 A' 187 187 0.03      
7 A" 1308 1308 54.17      
8 A" 767 767 108.44      
9 A" 222 222 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 4501.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4501.8 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 CBS-Q
ABC
0.08294 0.04176 0.02835

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.232 0.594 0.000
H2 -1.150 1.151 0.000
Cl3 1.103 1.741 0.000
Br4 -0.232 -0.490 1.584
Br5 -0.232 -0.490 -1.584

Atom - Atom Distances (Å)
  C1 H2 Cl3 Br4 Br5
C11.07451.76011.91921.9192
H21.07452.32972.45882.4588
Cl31.76012.32973.04443.0444
Br41.91922.45883.04443.1676
Br51.91922.45883.04443.1676

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 108.099 H2 C1 Br4 107.027
H2 C1 Br5 107.027 Cl3 C1 Br4 111.598
Cl3 C1 Br5 111.598 Br4 C1 Br5 111.223
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability