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All results from a given calculation for ZnCH2 (Zinc methylene)

using model chemistry: CCSD(T)/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 3B1
2 2 yes CS 1A'

State 1 (3B1) , Conformer 1 (C2V)

Jump to S1C2 S2C1 S2C2
Energy calculated at CCSD(T)/6-31G*
 hartrees
Energy at 0K-1816.801399
Energy at 298.15K-1816.802800
Nuclear repulsion energy67.042944
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)/6-31G*
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 3112 2994        
2 A1 1400 1347        
3 A1 559 538        
4 B1 666 641        
5 B2 3209 3087        
6 B2 579 557        

Unscaled Zero Point Vibrational Energy (zpe) 4762.1 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 4581.6 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)/6-31G*
ABC
10.04469 0.35346 0.34144

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Zn1 0.000 0.000 0.439
C2 0.000 0.000 -1.497
H3 0.000 0.912 -2.100
H4 0.000 -0.912 -2.100

Atom - Atom Distances (Å)
  Zn1 C2 H3 H4
Zn11.93682.69862.6986
C21.93681.09361.0936
H32.69861.09361.8250
H42.69861.09361.8250

picture of Zinc methylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Zn1 C2 H3 123.451 Zn1 C2 H4 123.451
H3 C2 H4 113.097
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 1 () , Conformer 2 ()

Jump to S1C1 S2C1 S2C2
Energy calculated at CCSD(T)/6-31G*
 hartrees
Energy at 0K-1816.801399
Energy at 298.15K-1816.802800
Nuclear repulsion energy67.042944
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)/6-31G*
Rotational Constants (cm-1) from geometry optimized at CCSD(T)/6-31G*
ABC
10.04469 0.35346 0.34144

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G*

Point Group is C2v

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (1A1) , Conformer 1 (C2V)

Jump to S1C1 S1C2 S2C2
Energy calculated at CCSD(T)/6-31G*
 hartrees
Energy at 0K-1816.801399
Energy at 298.15K-1816.802800
Nuclear repulsion energy67.042944
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)/6-31G*
Rotational Constants (cm-1) from geometry optimized at CCSD(T)/6-31G*
ABC
10.04469 0.35346 0.34144

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G*

Point Group is C2v

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (1A') , Conformer 2 (CS)

Jump to S1C1 S1C2 S2C1
Energy calculated at CCSD(T)/6-31G*
 hartrees
Energy at 0K-1816.791105
Energy at 298.15K-1816.792556
Nuclear repulsion energy68.264907
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)/6-31G*
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' 2983 2870        
2 A' 1420 1366        
3 A' 717 690        
4 A' 528 508        
5 A" 3058 2942        
6 A" 661 636        

Unscaled Zero Point Vibrational Energy (zpe) 4682.7 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 4505.3 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)/6-31G*
ABC
8.24082 0.36968 0.36083

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Zn1 -0.028 -0.424 0.000
C2 -0.028 1.493 0.000
H3 0.508 1.886 0.886
H4 0.508 1.886 -0.886

Atom - Atom Distances (Å)
  Zn1 C2 H3 H4
Zn11.91702.53132.5313
C21.91701.10741.1074
H32.53131.10741.7716
H42.53131.10741.7716

picture of Zinc methylene state 2 conformation 2
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability