Complex of palladium(II) with a macrocylic ligand derived from thiophene-2,5-carboxamide and bipyrrole

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• 作者：E. A. Kataev ; G. V. Lavrov ; V. V. Roznyatovskii and V. N. Khrustalev
• 关键词：expanded porphyrins ; macrocyclic ligand ; bipyrrole ; anion binding ; palladium complex
• 刊名：Journal of Structural Chemistry
• 出版年：2007
• 出版时间：September, 2007
• 年：2007
• 卷：48
• 期：5
• 页码：977-980
• 全文大小：102.5 KB

文摘

The interaction of a Pd(II) salt with macrocyclic ligand 1 containing thiophene-2,5-carboxamide and bipyrrole fragments is studied. It is demonstrated that only mono-palladium complex 2 is formed in the reaction of PdCl₂(CH₃CN)₂ with ligand 1. Complex 2 was isolated as crystalline compound 2b additionally involving also triethylammonium acetate and solvent molecules. According to single crystal XRD data, the crystals of complex 2b have the composition of [C₅₀H₄₅N₆O₄PdS]−[C₆H₁₆N]₊¡¤ 1/4(C₅H₁₂)¡¤CH₂Cl₂, triclinic, space group P[`1]P\bar 1 , a = 14.9608(5) Å, b = 17.5574(6) Å, c = 22.5893(8) Å, α = 75.218(5)¡ã, β = 74.086(5)¡ã, γ = 81.244(5)¡ã, V = 5495.7(4) Å3, Z = 4 (two independent formula units), d _calc = 1.375 g/cm3, μ = 0.526 mm−1. The central atom of palladium(II) is coordinated with amide, imine, pyrrole nitrogen atoms, and the oxygen atom of triethylammonium acetate.