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

using model chemistry: ROMP2/6-31+G**

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 ROMP2/6-31+G**
 hartrees
Energy at 0K-1816.477631
Energy at 298.15K-1816.479011
Nuclear repulsion energy66.882386
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 ROMP2/6-31+G**
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 3191 3191        
2 A1 1396 1396        
3 A1 556 556        
4 B1 625 625        
5 B2 3307 3307        
6 B2 571 571        

Unscaled Zero Point Vibrational Energy (zpe) 4822.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4822.6 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 ROMP2/6-31+G**
ABC
10.09680 0.35121 0.33940

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Zn1 0.000 0.000 0.441
C2 0.000 0.000 -1.505
H3 0.000 0.910 -2.096
H4 0.000 -0.910 -2.096

Atom - Atom Distances (Å)
  Zn1 C2 H3 H4
Zn11.94542.69532.6953
C21.94541.08551.0855
H32.69531.08551.8202
H42.69531.08551.8202

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 123.021 Zn1 C2 H4 123.021
H3 C2 H4 113.958
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 1 () , Conformer 2 ()

Jump to S1C1 S2C1 S2C2
Energy calculated at ROMP2/6-31+G**
 hartrees
Energy at 0K-1816.477631
Energy at 298.15K-1816.479011
Nuclear repulsion energy66.882386
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 ROMP2/6-31+G**
Rotational Constants (cm-1) from geometry optimized at ROMP2/6-31+G**
ABC
10.09680 0.35121 0.33940

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/6-31+G**

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 ROMP2/6-31+G**
 hartrees
Energy at 0K-1816.477631
Energy at 298.15K-1816.479011
Nuclear repulsion energy66.882386
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 ROMP2/6-31+G**
Rotational Constants (cm-1) from geometry optimized at ROMP2/6-31+G**
ABC
10.09680 0.35121 0.33940

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/6-31+G**

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 ROMP2/6-31+G**
 hartrees
Energy at 0K-1816.419041
Energy at 298.15K-1816.420567
Nuclear repulsion energy69.550903
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 ROMP2/6-31+G**
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' 2993 2993        
2 A' 1381 1381        
3 A' 778 778        
4 A' 553 553        
5 A" 3094 3094        
6 A" 723 723        

Unscaled Zero Point Vibrational Energy (zpe) 4760.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4760.5 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 ROMP2/6-31+G**
ABC
7.63561 0.38611 0.37751

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Zn1 -0.032 -0.412 0.000
C2 -0.032 1.483 0.000
H3 0.574 1.732 0.891
H4 0.574 1.732 -0.891

Atom - Atom Distances (Å)
  Zn1 C2 H3 H4
Zn11.89452.39912.3991
C21.89451.10601.1060
H32.39911.10601.7823
H42.39911.10601.7823

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