Preparation and characterization of chromophor group containing cyclotriphosphazenes: II azo chromophor carrying some cyclotriphosphazenes

Some new substituted cyclotriphosphazenes were prepared by the reaction of hexachlrocyclotriphosphazene and 4-hydroxyazo compounds such as 4-hydroxyaz obenzene, 4'-ethyl-4-hydroxyazobenzene, 4'-tertbutyl-4-hydroxyazobenzene, 4 '-methoxy-1-hydroxyazobenzene, 3',4'-dichloro-4-hydroxyazobenzene, 2'-chlor o-4-hydroxyazobenzene and 2'-methoxy-5'-chloro-4-hydroxyazobenzene. The str ucture of the compounds with the general formula [NP(OC6H4N=N-Ar)(2)](3). w as determined by UV-VIS,IR, II-NMR and elemental analysis.