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

using model chemistry: LSDA/3-21G*

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 LSDA/3-21G*
 hartrees
Energy at 0K-1807.216487
Energy at 298.15K-1807.218075
Nuclear repulsion energy73.124833
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 LSDA/3-21G*
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 3062 3006 7.41      
2 A1 1365 1341 0.01      
3 A1 760 747 12.62      
4 B1 779 765 115.35      
5 B2 3162 3105 2.64      
6 B2 635 624 2.96      

Unscaled Zero Point Vibrational Energy (zpe) 4881.5 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 4793.7 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 LSDA/3-21G*
ABC
9.93544 0.42842 0.41071

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Zn1 0.000 0.000 0.400
C2 0.000 0.000 -1.349
H3 0.000 0.917 -1.950
H4 0.000 -0.917 -1.950

Atom - Atom Distances (Å)
  Zn1 C2 H3 H4
Zn11.74892.52302.5230
C21.74891.09701.0970
H32.52301.09701.8350
H42.52301.09701.8350

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 123.240 Zn1 C2 H4 123.240
H3 C2 H4 113.521
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Zn 0.315      
2 C -0.770      
3 H 0.228      
4 H 0.228      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.636 0.636
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.998 0.000 0.000
y 0.000 -20.570 0.000
z 0.000 0.000 -23.354
Traceless
 xyz
x -1.036 0.000 0.000
y 0.000 2.606 0.000
z 0.000 0.000 -1.570
Polar
3z2-r2-3.140
x2-y2-2.428
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.666 0.000 0.000
y 0.000 6.580 0.000
z 0.000 0.000 7.692


<r2> (average value of r2) Å2
<r2> 38.941
(<r2>)1/2 6.240

State 1 () , Conformer 2 ()

Jump to S1C1 S2C1 S2C2
Energy calculated at LSDA/3-21G*
 hartrees
Energy at 0K-1807.216487
Energy at 298.15K-1807.218075
Nuclear repulsion energy73.124833
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 LSDA/3-21G*
Rotational Constants (cm-1) from geometry optimized at LSDA/3-21G*
ABC
9.93544 0.42842 0.41071

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G*

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 LSDA/3-21G*
 hartrees
Energy at 0K-1807.206194
Energy at 298.15K 
Nuclear repulsion energy76.763943
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 LSDA/3-21G*
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 3146 3089 21.85      
2 A1 1327 1303 46.47      
3 A1 885 869 13.86      
4 B1 818i 803i 292.06      
5 B2 3315 3256 13.68      
6 B2 792 778 89.35      

Unscaled Zero Point Vibrational Energy (zpe) 4323.8 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 4246.0 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 LSDA/3-21G*
ABC
8.88559 0.48121 0.45649

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Zn1 0.000 0.000 0.376
C2 0.000 0.000 -1.289
H3 0.000 0.970 -1.776
H4 0.000 -0.970 -1.776

Atom - Atom Distances (Å)
  Zn1 C2 H3 H4
Zn11.66542.36112.3611
C21.66541.08561.0856
H32.36111.08561.9403
H42.36111.08561.9403

picture of Zinc methylene state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Zn 0.391      
2 C -0.878      
3 H 0.244      
4 H 0.244      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 2.827 2.827
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.072 0.000 0.000
y 0.000 -19.572 0.000
z 0.000 0.000 -19.404
Traceless
 xyz
x -7.584 0.000 0.000
y 0.000 3.666 0.000
z 0.000 0.000 3.918
Polar
3z2-r27.837
x2-y2-7.500
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.407 0.000 0.000
y 0.000 4.226 0.000
z 0.000 0.000 8.024


<r2> (average value of r2) Å2
<r2> 36.162
(<r2>)1/2 6.014

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

Jump to S1C1 S1C2 S2C1
Energy calculated at LSDA/3-21G*
 hartrees
Energy at 0K-1807.212503
Energy at 298.15K-1807.214118
Nuclear repulsion energy75.218072
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 LSDA/3-21G*
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' 2948 2895 22.02      
2 A' 1331 1307 49.56      
3 A' 777 763 15.25      
4 A' 702 689 148.79      
5 A" 3038 2983 3.04      
6 A" 753 739 52.58      

Unscaled Zero Point Vibrational Energy (zpe) 4774.2 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 4688.2 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 LSDA/3-21G*
ABC
8.25908 0.45922 0.44405

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Zn1 -0.026 -0.381 0.000
C2 -0.026 1.328 0.000
H3 0.470 1.738 0.904
H4 0.470 1.738 -0.904

Atom - Atom Distances (Å)
  Zn1 C2 H3 H4
Zn11.70912.35682.3568
C21.70911.11001.1100
H32.35681.11001.8082
H42.35681.11001.8082

picture of Zinc methylene state 2 conformation 2
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Zn 0.349      
2 C -0.815      
3 H 0.233      
4 H 0.233      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.056 -1.855 0.000 1.856
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.563 4.278 0.000
y 4.278 -22.009 0.000
z 0.000 0.000 -20.460
Traceless
 xyz
x -3.329 4.278 0.000
y 4.278 0.503 0.000
z 0.000 0.000 2.826
Polar
3z2-r25.652
x2-y2-2.555
xy4.278
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.876 -1.073 0.000
y -1.073 11.351 0.000
z 0.000 0.000 5.187


<r2> (average value of r2) Å2
<r2> 37.037
(<r2>)1/2 6.086