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All results from a given calculation for CH2BrI (bromoiodomethane)

using model chemistry: MP4=FULL/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 MP4=FULL/Def2TZVPP
 hartrees
Energy at 0K-2909.258916
Energy at 298.15K 
HF Energy-2908.113396
Nuclear repulsion energy262.438308
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 MP4=FULL/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' 3129 3129        
2 A' 1430 1430        
3 A' 1183 1183        
4 A' 661 661        
5 A' 539 539        
6 A' 145 145        
7 A" 3217 3217        
8 A" 1102 1102        
9 A" 766 766        

Unscaled Zero Point Vibrational Energy (zpe) 6085.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6085.8 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 MP4=FULL/Def2TZVPP
ABC
0.81980 0.02974 0.02885

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.081 0.000
Br2 1.887 0.692 0.000
I3 -1.238 -0.642 0.000
H4 -0.226 1.643 0.895
H5 -0.226 1.643 -0.895

Atom - Atom Distances (Å)
  C1 Br2 I3 H4 H5
C11.92662.12081.08101.0810
Br21.92663.39762.48412.4841
I32.12083.39762.65412.6541
H41.08102.48412.65411.7900
H51.08102.48412.65411.7900

picture of bromoiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 I3 114.077 Br2 C1 H4 108.046
Br2 C1 H5 108.046 I3 C1 H4 107.485
I3 C1 H5 107.485 H4 C1 H5 111.773
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability