trans-2,6-bis(ethylamino)-2,4,4,6,8,8-hexapiperidinocyclo-2 lambda(5),4 lambda(5),6 lambda(5),8 lambda(5)-tetraphosphazatetraene


Hokelek T., Kilic E., Kilic Z.

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, vol.55, pp.983-985, 1999 (SCI-Expanded) identifier identifier

Abstract

The title compound, C34H72N12P4, consists Of a chair-shaped cyclic tetrameric phosphazene ring with six bulky piperidino and two ethylamino side groups. The two ethylamino side groups are in trans positions. The bulky substituents are instrumental in determining the eight-membered-ring conformation. The endocyclic N-P-N angles, which have different substituents, are not the same as the P-N-P angles of the macrocyclic ring.