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All results from a given calculation for Al(CH3)3 (trimethyl aluminum)

using model chemistry: MP2=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3H 1A'
Energy calculated at MP2=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-361.404565
Energy at 298.15K 
HF Energy-360.780234
Nuclear repulsion energy151.605377
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(2df,p)
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/6-31G(2df,p)
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

Point Group is C3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 0.000 0.000 0.000
C2 0.000 1.952 0.000
C3 -1.691 -0.976 0.000
C4 1.691 -0.976 0.000
H5 -0.995 2.395 0.000
H6 -1.577 -2.060 0.000
H7 2.572 -0.336 0.000
H8 0.530 2.344 0.871
H9 0.530 2.344 -0.871
H10 -2.295 -0.713 0.871
H11 -2.295 -0.713 -0.871
H12 1.765 -1.631 0.871
H13 1.765 -1.631 -0.871

Atom - Atom Distances (Å)
  Al1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
Al11.95221.95221.95222.59392.59392.59392.55602.55602.55602.55602.55602.5560
C21.95223.38143.38141.08944.31063.44251.09221.09223.62313.62314.08824.0882
C31.95223.38143.38143.44251.08944.31064.08824.08821.09221.09223.62313.6231
C41.95223.38143.38144.31063.44251.08943.62313.62314.08824.08821.09221.0922
H52.59391.08943.44254.31064.49284.49281.75741.75743.47963.47964.95874.9587
H62.59394.31061.08943.44254.49284.49284.95874.95871.75741.75743.47963.4796
H72.59393.44254.31061.08944.49284.49283.47963.47964.95874.95871.75741.7574
H82.55601.09224.08823.62311.75744.95873.47961.74174.16234.51204.16234.5120
H92.55601.09224.08823.62311.75744.95873.47961.74174.51204.16234.51204.1623
H102.55603.62311.09224.08823.47961.75744.95874.16234.51201.74174.16234.5120
H112.55603.62311.09224.08823.47961.75744.95874.51204.16231.74174.51204.1623
H122.55604.08823.62311.09224.95873.47961.75744.16234.51204.16234.51201.7417
H132.55604.08823.62311.09224.95873.47961.75744.51204.16234.51204.16231.7417

picture of trimethyl aluminum state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Al1 C2 H5 114.002 Al1 C2 H8 111.011
Al1 C2 H9 111.011 Al1 C3 H6 114.002
Al1 C3 H10 111.011 Al1 C3 H11 111.011
Al1 C4 H7 114.002 Al1 C4 H12 111.011
Al1 C4 H13 111.011 C2 Al1 C3 120.000
C2 Al1 C4 120.000 C3 Al1 C4 120.000
H5 C2 H8 107.321 H5 C2 H9 107.321
H6 C3 H10 107.321 H6 C3 H11 107.321
H7 C4 H12 107.321 H7 C4 H13 107.321
H8 C2 H9 105.746 H10 C3 H11 105.746
H12 C4 H13 105.746
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability