T. Hokelek et al., 2,4,4,6,6-Pentachloro-2-(2,6-di-tert-butyl-4-methylphenoxy)cyclo-2 lambda(5),4 lambda(5),6 lambda(5)-triphosphazatriene, ACT CRYST C, 55, 1999, pp. 783-785
The title compound, C15H23Cl5N3OP3, consists of a non-planar trimeric phosp
hazene ring and a bulky 2,6-di-tert-butyl-4-methylphenoxy side group in whi
ch the phenyl ring shows a small but significant distortion from planarity.
The bulky group predominantly determines the molecular shape. The endocycl
ic angle about the P atom bonded to the substituent is decreased, while the
exocyclic angle is increased. The situation is not similar to that of tetr
americ phosphazene derivatives.