Crystal structure of N,N,N′,N′-tetrakis(methyldiphenylphosphino)-bis- (2′-phenoxy)-3,6-dioxaoctane

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 P1, 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.