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All results from a given calculation for CH2BrI (bromoiodomethane)

using model chemistry: QCISD(T)/Def2TZVPP

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)/Def2TZVPP
 hartrees
Energy at 0K-2909.076715
Energy at 298.15K 
HF Energy-2908.113374
Nuclear repulsion energy261.744275
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)/Def2TZVPP
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' 3141 3141        
2 A' 1434 1434        
3 A' 1186 1186        
4 A' 655 655        
5 A' 536 536        
6 A' 144 144        
7 A" 3227 3227        
8 A" 1100 1100        
9 A" 770 770        

Unscaled Zero Point Vibrational Energy (zpe) 6096.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6096.9 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(T)/Def2TZVPP
ABC
0.81733 0.02956 0.02868

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.083 0.000
Br2 1.891 0.699 0.000
I3 -1.240 -0.646 0.000
H4 -0.225 1.646 0.896
H5 -0.225 1.646 -0.896

Atom - Atom Distances (Å)
  C1 Br2 I3 H4 H5
C11.92992.12831.08231.0823
Br21.92993.40792.48632.4863
I32.12833.40792.66262.6626
H41.08232.48632.66261.7928
H51.08232.48632.66261.7928

picture of bromoiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 I3 114.140 Br2 C1 H4 107.930
Br2 C1 H5 107.930 I3 C1 H4 107.538
I3 C1 H5 107.538 H4 C1 H5 111.843
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability