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

using model chemistry: MP4/6-31G*

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 MP4/6-31G*
 hartrees
Energy at 0K-1816.807262
Energy at 298.15K-1816.808688
Nuclear repulsion energy67.524603
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 MP4/6-31G*
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 3136 2994        
2 A1 1412 1348        
3 A1 576 550        
4 B1 677 647        
5 B2 3234 3088        
6 B2 591 564        

Unscaled Zero Point Vibrational Energy (zpe) 4813.0 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 4595.4 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 MP4/6-31G*
ABC
10.09826 0.35894 0.34662

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Zn1 0.000 0.000 0.436
C2 0.000 0.000 -1.485
H3 0.000 0.910 -2.088
H4 0.000 -0.910 -2.088

Atom - Atom Distances (Å)
  Zn1 C2 H3 H4
Zn11.92082.68362.6836
C21.92081.09211.0921
H32.68361.09211.8201
H42.68361.09211.8201

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 123.562 Zn1 C2 H4 123.562
H3 C2 H4 112.877
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 1 () , Conformer 2 ()

Jump to S1C1 S2C1 S2C2
Energy calculated at MP4/6-31G*
 hartrees
Energy at 0K-1816.807262
Energy at 298.15K-1816.808688
Nuclear repulsion energy67.524603
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 MP4/6-31G*
Rotational Constants (cm-1) from geometry optimized at MP4/6-31G*
ABC
10.09826 0.35894 0.34662

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

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 MP4/6-31G*
 hartrees
Energy at 0K-1816.807262
Energy at 298.15K-1816.808688
Nuclear repulsion energy67.524603
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 MP4/6-31G*
Rotational Constants (cm-1) from geometry optimized at MP4/6-31G*
ABC
10.09826 0.35894 0.34662

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

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 MP4/6-31G*
 hartrees
Energy at 0K-1816.796413
Energy at 298.15K-1816.797927
Nuclear repulsion energy69.376914
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 MP4/6-31G*
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' 2949 2816        
2 A' 1404 1340        
3 A' 783 748        
4 A' 572 546        
5 A" 3030 2893        
6 A" 678 648        

Unscaled Zero Point Vibrational Energy (zpe) 4708.3 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 4495.4 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 MP4/6-31G*
ABC
7.95307 0.38377 0.37479

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Zn1 -0.030 -0.415 0.000
C2 -0.030 1.471 0.000
H3 0.543 1.816 0.887
H4 0.543 1.816 -0.887

Atom - Atom Distances (Å)
  Zn1 C2 H3 H4
Zn11.88612.46892.4689
C21.88611.11101.1110
H32.46891.11101.7742
H42.46891.11101.7742

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