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Abstract
The title compound, C48H42N3O18P3, achieved in a two-step synthesis, comprises a cyclo-triphosphazene core and six 4-meth-oxy-carbonyl-phen-oxy groups. Each P atom is attached to two substituents located up and down with respect to the plane of the phosphazene ring, the central P3N3 ring having a twist-boat conformation. The three O/P/O planes and five of the six benzene rings are nearly perpendicular to the mean plane through the phosphazene ring [dihedral angles = 82.98 (8)-88.92 (8)°], while the remaining benzene ring forms a dihedral angle of 25.72 (7)°. The crystal packing is stabilized by van der Waals inter-actions only.
Highlights
In the past few decades, a rich variety of cyclotriphosphazenes with interesting properties and applications have been synthesized by replacing the Cl atoms of hexachlorocyclotriphosphazene with various nucleophiles
Hexakis(allyl 4-hydroxybenzoate)cyclotriphosphazene (HABC) possessing six reactive peripheral allyl groups is used as a functional phosphazenebased oligomer for the synthesis of optical resin, through radical homopolymerization of itself and copolymerization with methyl methacrylate (Guo et al, 2009)
As a retardant additive, HMPC was blended with a polymer of methyl methacrylate to obtain the flame-retardant polymer
Summary
In the past few decades, a rich variety of cyclotriphosphazenes with interesting properties and applications have been synthesized by replacing the Cl atoms of hexachlorocyclotriphosphazene with various nucleophiles. The properties of cyclotriphosphazenes depend on the inorganic skeleton, as well as on the nature of the substituents attached to the P atoms (Patil et al, 2011). Hexakis(allyl 4-hydroxybenzoate)cyclotriphosphazene (HABC) possessing six reactive peripheral allyl groups is used as a functional phosphazenebased oligomer for the synthesis of optical resin, through radical homopolymerization of itself and copolymerization with methyl methacrylate (Guo et al, 2009). As a retardant additive, HMPC was blended with a polymer of methyl methacrylate to obtain the flame-retardant polymer. In this context, we report here the synthesis and crystal structure of HMPC
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Schedule a callMore From: Acta crystallographica. Section E, Crystallographic communications
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