return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH2BrI (bromoiodomethane)

using model chemistry: CCSD(T)=FULL/cc-pVTZ-PP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD(T)=FULL/cc-pVTZ-PP
 hartrees
Energy at 0K-749.943733
Energy at 298.15K 
HF Energy-749.206529
Nuclear repulsion energy202.415054
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 CCSD(T)=FULL/cc-pVTZ-PP
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' 3160 3160        
2 A' 1444 1444        
3 A' 1186 1186        
4 A' 658 658        
5 A' 539 539        
6 A' 145 145        
7 A" 3219 3219        
8 A" 1101 1101        
9 A" 769 769        

Unscaled Zero Point Vibrational Energy (zpe) 6109.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6109.6 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 CCSD(T)=FULL/cc-pVTZ-PP
ABC
0.82072 0.02958 0.02871

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/cc-pVTZ-PP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.084 0.000
Br2 1.886 0.708 0.000
I3 -1.237 -0.652 0.000
H4 -0.227 1.644 0.893
H5 -0.227 1.644 -0.893

Atom - Atom Distances (Å)
  C1 Br2 I3 H4 H5
C11.92292.13211.07811.0781
Br21.92293.40602.47752.4775
I32.13213.40602.66292.6629
H41.07812.47752.66291.7855
H51.07812.47752.66291.7855

picture of bromoiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 I3 114.177 Br2 C1 H4 107.958
Br2 C1 H5 107.958 I3 C1 H4 107.508
I3 C1 H5 107.508 H4 C1 H5 111.809
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability