Syntheses and crystal structure of [Li4Zn(μ 3,η2-ddbfo)2(μ,η2-ddbfo)3Cl(CH3CN)2]·2CH3CN, [Na4(μ,η2-ddbfo)4(CH3CN)4] and [Zn2(μ,η1-ddbfo)2Cl2(py)2] aggregates

Abstract

The synthesis, characterization and the X-ray structure of the three title complexes containing the 2,3-dihydro-2,2-dimethyl-7-benzofuranoxide (ddbfo) ligand are reported. The structure of [Li₄Zn(μ₃,η²-ddbfo)₂(μ,η²-ddbfo)₃Cl(CH₃CN)₂] includes four lithium and one zinc tetrahedral metal centers linked by μ-O_aryloxide and μ₃-O_aryloxide bridges. The crystals of [Na₄(μ₃,η²-ddbfo)₄(CH₃CN)₄] are composed of centrosymmetric cubic molecules. The crystal structure determination of compound [Zn₂(μ,η¹-ddbfo)₂Cl₂(py)₂] shows it to be a centrosymmetric dimer, in which two ZnCl(py) units are linked by μ-O_aryloxide oxygen atoms of η¹-ddbfo ligands.