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Synthesis and Crystal Structure of [Nd(η6-1, 3, 5-C6H3Me3)-(AlCl4)3](C6H6) and Structural Comparison of Ln(η6-arene)-(AlCl4)3
Abstract
Reaction of Ndcl3 with AlCl3 and mesitylene in benzene gives complex [Nd(η6-1, 3, 5-C6H3Me3)-(AlCl4)3](C6H6) (1) which was characterized by elemental analysis, IR spectra, MS and X-ray diffractions. The X-ray determination indicates that 1 has a distorted pentagonal bipyramidal geometry and crystallizes in the monoclinic, space group P21/n with a = 0.9586(2), b = 1.1717(5), c = 2.8966(7) nm, β = 90.85 (2)°, V = 3.2529 (6) nm3,Dc= 1.573 g/cm3, Z = 4. A comparison of bond parameters for all the reported Ln (η6-Ar) (AlCl4)3 complexes indicates that the bond distance of LaC is shortened with the increasing of methyl group on benzene and with the decreasing of radius of lanthanide ions.
