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

using model chemistry: MP2=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 3B1
2 1 no C2V 1A1
2 2 yes CS 1A'

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

Jump to S1C2 S2C1 S2C2
Energy calculated at MP2=FULL/6-31G*
 hartrees
Energy at 0K-1816.858963
Energy at 298.15K-1816.860408
Nuclear repulsion energy67.695265
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 MP2=FULL/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 3192 3007 19.61      
2 A1 1437 1354 13.07      
3 A1 591 556 27.18      
4 B1 682 643 87.19      
5 B2 3293 3102 8.27      
6 B2 602 567 2.23      

Unscaled Zero Point Vibrational Energy (zpe) 4898.2 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 4615.1 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 MP2=FULL/6-31G*
ABC
10.19469 0.36060 0.34829

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Zn1 0.000 0.000 0.435
C2 0.000 0.000 -1.481
H3 0.000 0.906 -2.083
H4 0.000 -0.906 -2.083

Atom - Atom Distances (Å)
  Zn1 C2 H3 H4
Zn11.91652.67652.6765
C21.91651.08761.0876
H32.67651.08761.8115
H42.67651.08761.8115

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 123.615 Zn1 C2 H4 123.615
H3 C2 H4 112.770
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 1 () , Conformer 2 ()

Jump to S1C1 S2C1 S2C2
Energy calculated at MP2=FULL/6-31G*
 hartrees
Energy at 0K-1816.858963
Energy at 298.15K-1816.860408
Nuclear repulsion energy67.695265
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 MP2=FULL/6-31G*
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/6-31G*
ABC
10.19469 0.36060 0.34829

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/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 MP2=FULL/6-31G*
 hartrees
Energy at 0K-1816.822994
Energy at 298.15K-1816.824707
Nuclear repulsion energy71.993528
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 MP2=FULL/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 3240 3053 19.07      
2 A1 1318 1242 150.74      
3 A1 715 674 1.53      
4 B1 21728 20472 0.00      
5 B2 3411 3214 14.78      
6 B2 714 673 84.85      

Unscaled Zero Point Vibrational Energy (zpe) 15563.3 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 14663.8 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 MP2=FULL/6-31G*
ABC
8.90174 0.41714 0.39846

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Zn1 0.000 0.000 0.403
C2 0.000 0.000 -1.394
H3 0.000 0.969 -1.870
H4 0.000 -0.969 -1.870

Atom - Atom Distances (Å)
  Zn1 C2 H3 H4
Zn11.79742.47172.4717
C21.79741.08001.0800
H32.47171.08001.9386
H42.47171.08001.9386

picture of Zinc methylene state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

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

Jump to S1C1 S1C2 S2C1
Energy calculated at MP2=FULL/6-31G*
 hartrees
Energy at 0K-1816.840513
Energy at 298.15K-1816.842077
Nuclear repulsion energy70.556474
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 MP2=FULL/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' 3007 2834 24.17      
2 A' 1402 1321 19.21      
3 A' 806 759 182.64      
4 A' 606 571 4.49      
5 A" 3094 2915 29.43      
6 A" 724 682 42.53      

Unscaled Zero Point Vibrational Energy (zpe) 4819.7 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 4541.1 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 MP2=FULL/6-31G*
ABC
7.88977 0.39838 0.38884

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Zn1 -0.031 -0.407 0.000
C2 -0.031 1.447 0.000
H3 0.549 1.762 0.887
H4 0.549 1.762 -0.887

Atom - Atom Distances (Å)
  Zn1 C2 H3 H4
Zn11.85442.41452.4145
C21.85441.10591.1059
H32.41451.10591.7749
H42.41451.10591.7749

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