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

using model chemistry: QCISD/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 QCISD/6-31G**
 hartrees
Energy at 0K-5638.218842
Energy at 298.15K-5638.225969
HF Energy-5637.685670
Nuclear repulsion energy573.405406
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/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' 3263 3072 0.35      
2 A' 1272 1197 29.03      
3 A' 798 751 100.59      
4 A' 576 542 6.67      
5 A' 286 269 0.17      
6 A' 176 166 0.02      
7 A" 1205 1134 43.27      
8 A" 680 641 93.38      
9 A" 209 197 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 4232.4 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 3984.4 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 QCISD/6-31G**
ABC
0.08203 0.04090 0.02785

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.233 0.614 0.000
H2 -1.164 1.163 0.000
Cl3 1.109 1.755 0.000
Br4 -0.233 -0.495 1.604
Br5 -0.233 -0.495 -1.604

Atom - Atom Distances (Å)
  C1 H2 Cl3 Br4 Br5
C11.08121.76141.94981.9498
H21.08122.34932.48762.4876
Cl31.76142.34933.07163.0716
Br41.94982.48763.07163.2075
Br51.94982.48763.07163.2075

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 109.118 H2 C1 Br4 106.782
H2 C1 Br5 106.782 Cl3 C1 Br4 111.618
Cl3 C1 Br5 111.618 Br4 C1 Br5 110.675
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability