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

using model chemistry: QCISD/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 QCISD/6-31G**
 hartrees
Energy at 0K-1816.810285
Energy at 298.15K-1816.811699
Nuclear repulsion energy67.175224
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/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 3167 2982 31.01      
2 A1 1417 1334 25.80      
3 A1 563 530 19.84      
4 B1 667 628 73.35      
5 B2 3269 3077 14.56      
6 B2 585 550 1.57      

Unscaled Zero Point Vibrational Energy (zpe) 4833.4 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 4550.1 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 QCISD/6-31G**
ABC
10.18475 0.35448 0.34256

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/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 -1.496
H3 0.000 0.906 -2.095
H4 0.000 -0.906 -2.095

Atom - Atom Distances (Å)
  Zn1 C2 H3 H4
Zn11.93442.69102.6910
C21.93441.08651.0865
H32.69101.08651.8124
H42.69101.08651.8124

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 123.483 Zn1 C2 H4 123.483
H3 C2 H4 113.033
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 1 () , Conformer 2 ()

Jump to S1C1 S2C1 S2C2
Energy calculated at QCISD/6-31G**
 hartrees
Energy at 0K-1816.810285
Energy at 298.15K-1816.811699
Nuclear repulsion energy67.175224
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/6-31G**
Rotational Constants (cm-1) from geometry optimized at QCISD/6-31G**
ABC
10.18475 0.35448 0.34256

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/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 QCISD/6-31G**
 hartrees
Energy at 0K-1816.810285
Energy at 298.15K-1816.811699
Nuclear repulsion energy67.175224
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/6-31G**
Rotational Constants (cm-1) from geometry optimized at QCISD/6-31G**
ABC
10.18475 0.35448 0.34256

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/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 QCISD/6-31G**
 hartrees
Energy at 0K-1816.793480
Energy at 298.15K-1816.794945
Nuclear repulsion energy68.269218
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/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' 3035 2857 28.10      
2 A' 1417 1334 4.95      
3 A' 754 710 311.68      
4 A' 517 486 25.05      
5 A" 3113 2930 28.17      
6 A" 666 627 37.23      

Unscaled Zero Point Vibrational Energy (zpe) 4750.4 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 4472.0 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/6-31G**
ABC
8.11713 0.36935 0.36125

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Zn1 -0.030 -0.423 0.000
C2 -0.030 1.501 0.000
H3 0.539 1.848 0.877
H4 0.539 1.848 -0.877

Atom - Atom Distances (Å)
  Zn1 C2 H3 H4
Zn11.92422.50002.5000
C21.92421.10131.1013
H32.50001.10131.7538
H42.50001.10131.7538

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