Crystal Structure of N,N,N′,N′-Tetrakis(methyldiphenylphosphino)-bis-(2′-phenoxy)-3,6-dioxaoctane

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The title molecule, [C₇₀H₆₈N₂O₄P₄], is a polydentate podand consisting of four etheral oxygens, two tertiary amine nitrogens and four diphenylphosphin groups. It crystallizes in the triclinic space group P¯1, and there is only one half a molecule in the asymmetric unit. The coordinations around the N and P atoms are pyramidal. The conformations about C20-C21, O2-C21 and O2-C22 are gauche,anti and anti, respectively.