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All results from a given calculation for CH2Br (bromomethyl radical)

using model chemistry: ROMP2/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
1 2 no C2V 2A1

Conformer 1 (CS)

Jump to S1C2
Energy calculated at ROMP2/TZVP
 hartrees
Energy at 0K-2611.754063
Energy at 298.15K-2611.757736
HF Energy-2611.400568
Nuclear repulsion energy80.750426
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 ROMP2/TZVP
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' 3248 3248        
2 A' 1442 1442        
3 A' 713 713        
4 A' 167 167        
5 A" 3410 3410        
6 A" 963 963        

Unscaled Zero Point Vibrational Energy (zpe) 4971.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4971.1 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 ROMP2/TZVP
ABC
9.24377 0.37844 0.36370

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.004 1.485 0.000
Br2 0.004 -0.368 0.000
H3 -0.074 1.983 0.949
H4 -0.074 1.983 -0.949

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.85341.07421.0742
Br21.85342.53672.5367
H31.07422.53671.8974
H41.07422.53671.8974

picture of bromomethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 117.615 Br2 C1 H4 117.615
H3 C1 H4 124.043
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at ROMP2/TZVP
 hartrees
Energy at 0K-2611.754058
Energy at 298.15K 
HF Energy-2611.400423
Nuclear repulsion energy80.770677
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 ROMP2/TZVP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3250 3250        
2 A1 1442 1442        
3 A1 714 714        
4 B1 119i 119i        
5 B2 3413 3413        
6 B2 962 962        

Unscaled Zero Point Vibrational Energy (zpe) 4830.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4830.5 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 ROMP2/TZVP
ABC
9.27141 0.37864 0.36378

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.485
Br2 0.000 0.000 0.368
H3 0.000 0.950 -1.986
H4 0.000 -0.950 -1.986

Atom - Atom Distances (Å)
  C1 Br2 H3 H4
C11.85261.07391.0739
Br21.85262.53822.5382
H31.07392.53821.8995
H41.07392.53821.8995

picture of bromomethyl radical state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 117.824 Br2 C1 H4 117.824
H3 C1 H4 124.351
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROMP2/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.193      
2 Br -0.092      
3 H 0.142      
4 H 0.142      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 42.797
(<r2>)1/2 6.542