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

using model chemistry: MP2/6-31G(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 MP2/6-31G(2df,p)
 hartrees
Energy at 0K-361.360682
Energy at 298.15K 
HF Energy-360.780413
Nuclear repulsion energy150.913697
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 MP2/6-31G(2df,p)
Rotational Constants (cm-1) from geometry optimized at MP2/6-31G(2df,p)
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(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 1.963 0.000
C3 -1.700 -0.982 0.000
C4 1.700 -0.982 0.000
H5 -0.998 2.404 0.000
H6 -1.583 -2.067 0.000
H7 2.581 -0.338 0.000
H8 0.532 2.355 0.873
H9 0.532 2.355 -0.873
H10 -2.305 -0.717 0.873
H11 -2.305 -0.717 -0.873
H12 1.773 -1.638 0.873
H13 1.773 -1.638 -0.873

Atom - Atom Distances (Å)
  Al1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13
Al11.96341.96341.96342.60342.60342.60342.56682.56682.56682.56682.56682.5668
C21.96343.40063.40061.09144.32993.45801.09431.09433.64123.64124.10784.1078
C31.96343.40063.40063.45801.09144.32994.10784.10781.09431.09433.64123.6412
C41.96343.40063.40064.32993.45801.09143.64123.64124.10784.10781.09431.0943
H52.60341.09143.45804.32994.50914.50911.76211.76213.49453.49454.97814.9781
H62.60344.32991.09143.45804.50914.50914.97814.97811.76211.76213.49453.4945
H72.60343.45804.32991.09144.50914.50913.49453.49454.97814.97811.76211.7621
H82.56681.09434.10783.64121.76214.97813.49451.74574.18094.53074.18094.5307
H92.56681.09434.10783.64121.76214.97813.49451.74574.53074.18094.53074.1809
H102.56683.64121.09434.10783.49451.76214.97814.18094.53071.74574.18094.5307
H112.56683.64121.09434.10783.49451.76214.97814.53074.18091.74574.53074.1809
H122.56684.10783.64121.09434.97813.49451.76214.18094.53074.18094.53071.7457
H132.56684.10783.64121.09434.97813.49451.76214.53074.18094.53074.18091.7457

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 113.833 Al1 C2 H8 110.947
Al1 C2 H9 110.947 Al1 C3 H6 113.833
Al1 C3 H10 110.947 Al1 C3 H11 110.947
Al1 C4 H7 113.833 Al1 C4 H12 110.947
Al1 C4 H13 110.947 C2 Al1 C3 120.000
C2 Al1 C4 120.000 C3 Al1 C4 120.000
H5 C2 H8 107.452 H5 C2 H9 107.452
H6 C3 H10 107.452 H6 C3 H11 107.452
H7 C4 H12 107.452 H7 C4 H13 107.452
H8 C2 H9 105.807 H10 C3 H11 105.807
H12 C4 H13 105.807
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability