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All results from a given calculation for CH2Cl (chloromethyl radical)

using model chemistry: QCISD/3-21G

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 2B1

Conformer 1 (CS)

Jump to S1C2
Energy calculated at QCISD/3-21G
 hartrees
Energy at 0K-496.193799
Energy at 298.15K 
HF Energy-496.052020
Nuclear repulsion energy42.629066
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/3-21G
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' 3169 3071 3.26      
2 A' 1414 1370 22.65      
3 A' 676 655 32.37      
4 A' 434 421 67.54      
5 A" 3331 3229 0.30      
6 A" 960 931 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 4992.2 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 4838.5 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 QCISD/3-21G
ABC
8.75396 0.45709 0.43586

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.016 1.217 0.000
Cl2 -0.016 -0.626 0.000
H3 0.185 1.672 0.961
H4 0.185 1.672 -0.961

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4
C11.84311.08211.0821
Cl21.84312.49902.4990
H31.08212.49901.9218
H41.08212.49901.9218

picture of chloromethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 114.867 Br2 C1 H4 114.867
H3 C1 H4 125.250
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at QCISD/3-21G
 hartrees
Energy at 0K-496.193573
Energy at 298.15K 
HF Energy-496.051699
Nuclear repulsion energy42.722059
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/3-21G
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 3183 3085 1.77      
2 A1 1407 1364 26.91      
3 A1 676 655 28.25      
4 B1 323i 313i 103.61      
5 B2 3355 3252 0.00      
6 B2 943 914 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 4620.5 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 4478.2 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/3-21G
ABC
8.91041 0.45941 0.43688

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.210
Cl2 0.000 0.000 0.626
H3 0.000 0.969 -1.688
H4 0.000 -0.969 -1.688

Atom - Atom Distances (Å)
  C1 Cl2 H3 H4
C11.83601.08031.0803
Cl21.83602.50862.5086
H31.08032.50861.9376
H41.08032.50861.9376

picture of chloromethyl radical state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 116.262 Br2 C1 H4 116.262
H3 C1 H4 127.477
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability