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

using model chemistry: QCISD/6-311G*

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/6-311G*
 hartrees
Energy at 0K-5643.242508
Energy at 298.15K-5643.249643
HF Energy-5642.675792
Nuclear repulsion energy573.255461
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/6-311G*
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' 3199 3063 0.08      
2 A' 1282 1228 26.88      
3 A' 787 753 113.06      
4 A' 580 555 4.89      
5 A' 288 276 0.05      
6 A' 172 165 0.01      
7 A" 1219 1167 44.20      
8 A" 693 664 97.50      
9 A" 209 200 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 4214.5 cm-1
Scaled (by 0.9574) Zero Point Vibrational Energy (zpe) 4034.9 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/6-311G*
ABC
0.08226 0.04075 0.02779

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.231 0.597 0.000
H2 -1.163 1.154 0.000
Cl3 1.101 1.759 0.000
Br4 -0.231 -0.495 1.607
Br5 -0.231 -0.495 -1.607

Atom - Atom Distances (Å)
  C1 H2 Cl3 Br4 Br5
C11.08531.76721.94331.9433
H21.08532.34332.48382.4838
Cl31.76722.34333.07193.0719
Br41.94332.48383.07193.2144
Br51.94332.48383.07193.2144

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 108.075 H2 C1 Br4 106.745
H2 C1 Br5 106.745 Cl3 C1 Br4 111.683
Cl3 C1 Br5 111.683 Br4 C1 Br5 111.595
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability