Abstract
The compatibility of the special bridging abilities of the 4-methylphenoxide ligand, OC 6H 4Me-4, and alkylaluminum reagents have been examined. NdCl 3 reacts with KOC 6H 4Me-4 in THF to form K 3Nd 2 (μ-OC 6H 4Me-4) 6( μ 4-OC 6H 4Me-4) 3(THF) 7, 1, which has a trigonal bipyramidal arrangement of metal atoms with neodymium in the apical sites. Six doubly-bridging aryloxide ligands connect each apical metal to an equatorial metal and three quadruply-bridging aryloxide ligands connect the apical metals with two equatorial sites. Two potassium atoms have two terminal THF ligands and the other metals each have one terminal THF. A suspension of 1 in hexanes reacts with Al 2Me 6 to produce colorless crystals of [Me 2Al(OC 6H 4Me-4)] n and blue crystals which have been crystallographically characterized as Nd[μ-OC 6H 4Me-4) 2AlMe 2] 3, 2. The neodymium atom in 2 is surrounded by an octahedron of bridging aryloxide ligands and each aluminum is tetrahedral.
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