160605-33-4Relevant academic research and scientific papers
Structural studies on mesitylaluminum addition compounds
Lalama, Mark S.,Kampf, Jeff,Dick, David G.,Oliver, John P.
, p. 495 - 501 (1995)
Four mesitylaluminum derivatives, Mes3Al·(4-picoline)(C7H8)0.5 (1), EtMes2Al·THF (2), Mes2-ClAl·THF (3), and [Mes2Al(μ-Cl)]2 (4) (Mes = 2,4,6-trimethylphenyl), have been prepared and their structures determined by single crystal X-ray diffraction methods. Compound 1 crystallizes in the monoclinic space group C2/c (No. 15): a = 43.784(15) A?, b = 8.901(1) A?, c = 16.760(2) A?, β = 104.02(2)°, Z = 8, R = 10, and Rw = 9.9. Compound 2 crystallizes in the orthorhombic space group P212121 (No. 19): a = 12.057(9) A?, b = 13.490(3) A?, c = 14.037-(2) A?, Z = 4, R = 5.4, and Rw = 3.9. The halide derivative 3 crystallizes in the primitive monoclinic space group P21/a (No. 14): a = 17.18(1) A?, b = 14.754(2) A?, c = 17.316(2) A?, β = 92.74(3)°, Z = 8, R = 6.5, and Rw = 2.4. The base-free compound 4 exists as a dimer and crystallizes in the space group P21/c (No. 14): a = 12.288(2) A?, b = 15.824(3) A?, c = 9.095(2) A?, β = 108.43(2)°, Z = 4, R = 5.4, and Rw = 5.9. The distortion associated with 1, 2, and 3 relative to the parent monomeric molecule, Mes3Al, is discussed with respect to substitution of the mesityl group for the Cl and Et ligands.
