return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for Zn(CH3)2 (dimethyl zinc)

using model chemistry: PM3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description

Conformer 1 (D3H)

Jump to S1C2 S1C3
Energy calculated at PM3
 hartrees
Energy at 0K 
Energy at 298.15K0.013027
HF Energy0.013027
Nuclear repulsion energy35.560998
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 PM3
Rotational Constants (cm-1) from geometry optimized at PM3
ABC
2.61090 0.13453 0.13453

See section I.F.4 to change rotational constant units
Geometric Data calculated at PM3

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Zn1 0.000 0.000 0.000
C2 0.000 0.000 1.937
C3 0.000 0.000 -1.937
H4 0.000 1.033 2.301
H5 0.000 1.033 -2.301
H6 -0.895 -0.517 2.301
H7 0.895 -0.517 2.301
H8 0.895 -0.517 -2.301
H9 -0.895 -0.517 -2.301

Atom - Atom Distances (Å)
  Zn1 C2 C3 H4 H5 H6 H7 H8 H9
Zn11.93731.93732.52212.52212.52212.52212.52212.5221
C21.93733.87461.09544.36211.09541.09544.36214.3621
C31.93733.87464.36211.09544.36214.36211.09541.0954
H42.52211.09544.36214.60141.78981.78984.93724.9372
H52.52214.36211.09544.60144.93724.93721.78981.7898
H62.52211.09544.36211.78984.93721.78984.93724.6014
H72.52211.09544.36211.78984.93721.78984.60144.9372
H82.52214.36211.09544.93721.78984.93724.60141.7898
H92.52214.36211.09544.93721.78984.60144.93721.7898

picture of dimethyl zinc state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Zn1 C2 H4 109.376 Zn1 C2 H6 109.376
Zn1 C2 H7 109.376 Zn1 C3 H5 109.376
Zn1 C3 H8 109.376 Zn1 C3 H9 109.376
C2 Zn1 C3 180.000 H4 C2 H6 109.567
H4 C2 H7 109.567 H5 C3 H8 109.567
H5 C3 H9 109.567 H6 C2 H7 109.567
H8 C3 H9 109.567
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (D3D)

Jump to S1C1 S1C3
Energy calculated at PM3
 hartrees
Energy at 0K 
Energy at 298.15K0.013028
HF Energy0.013028
Nuclear repulsion energy35.562533
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 PM3
Rotational Constants (cm-1) from geometry optimized at PM3
ABC
2.61089 0.13458 0.13458

See section I.F.4 to change rotational constant units
Geometric Data calculated at PM3

Point Group is D3

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Zn1 0.000 0.000 0.000
C2 0.000 0.000 1.937
C3 0.000 0.000 -1.937
H4 -0.002 1.033 2.300
H5 0.002 1.033 -2.300
H6 -0.894 -0.518 2.300
H7 0.896 -0.515 2.300
H8 0.894 -0.518 -2.300
H9 -0.896 -0.515 -2.300

Atom - Atom Distances (Å)
  Zn1 C2 C3 H4 H5 H6 H7 H8 H9
Zn11.93691.93692.52182.52182.52182.52182.52182.5218
C21.93693.87381.09544.36151.09541.09544.36154.3615
C31.93693.87384.36151.09544.36154.36151.09541.0954
H42.52181.09544.36154.60081.78981.78984.93744.9359
H52.52184.36151.09544.60084.93744.93591.78981.7898
H62.52181.09544.36151.78984.93741.78984.93594.6008
H72.52181.09544.36151.78984.93591.78984.60084.9374
H82.52184.36151.09544.93741.78984.93594.60081.7898
H92.52184.36151.09544.93591.78984.60084.93741.7898

picture of dimethyl zinc state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Zn1 C2 H4 109.382 Zn1 C2 H6 109.382
Zn1 C2 H7 109.382 Zn1 C3 H5 109.382
Zn1 C3 H8 109.382 Zn1 C3 H9 109.382
C2 Zn1 C3 180.000 H4 C2 H6 109.560
H4 C2 H7 109.560 H5 C3 H8 109.560
H5 C3 H9 109.560 H6 C2 H7 109.560
H8 C3 H9 109.560
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C2V)

Jump to S1C1 S1C2
Energy calculated at PM3
 hartrees
Energy at 0K 
Energy at 298.15K0.013019
HF Energy0.013019
Nuclear repulsion energy35.562853
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 PM3
Rotational Constants (cm-1) from geometry optimized at PM3
ABC
2.61149 0.13456 0.13456

See section I.F.4 to change rotational constant units
Geometric Data calculated at PM3

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Zn1 0.000 0.000 0.000
C2 0.000 0.000 1.937
C3 0.000 0.000 -1.937
H4 0.000 1.033 2.300
H5 0.895 0.517 -2.300
H6 -0.895 -0.517 2.300
H7 0.895 -0.517 2.300
H8 0.000 -1.033 -2.300
H9 -0.895 0.517 -2.300

Atom - Atom Distances (Å)
  Zn1 C2 C3 H4 H5 H6 H7 H8 H9
Zn11.93711.93712.52182.52182.52182.52182.52182.5218
C21.93713.87411.09524.36171.09521.09524.36174.3617
C31.93713.87414.36171.09524.36174.36171.09521.0952
H42.52181.09524.36174.71551.78961.78965.04364.7155
H52.52184.36171.09524.71555.04364.71551.78961.7896
H62.52181.09524.36171.78965.04361.78964.71554.7155
H72.52181.09524.36171.78964.71551.78964.71555.0436
H82.52184.36171.09525.04361.78964.71554.71551.7896
H92.52184.36171.09524.71551.78964.71555.04361.7896

picture of dimethyl zinc state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Zn1 C2 H4 109.377 Zn1 C2 H6 109.377
Zn1 C2 H7 109.377 Zn1 C3 H5 109.377
Zn1 C3 H8 109.377 Zn1 C3 H9 109.377
C2 Zn1 C3 180.000 H4 C2 H6 109.565
H4 C2 H7 109.565 H5 C3 H8 109.565
H5 C3 H9 109.565 H6 C2 H7 109.565
H8 C3 H9 109.565
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability