M. Odabasoglu et al., Preparation and characterization of chromophor group containing cyclotriphosphazenes: I imino chromophor carrying some cyclotriphosphazenes, PHOSPHOR SU, 152, 1999, pp. 9-25
Citations number
16
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS
Some new substituted cyclotriphosphazenes were prepared by the reaction of
hexachlorocyclotriphophazene and 4-hydroxy or 4'-hydroxy Schiff bases as 4'
-hydroxybenzylideneaniline, 4'-hydroxy-4-chlorobenzylideneaniline, 4'-hydro
xy-2-chlorobenzylidenaniline, 4'-hydroxy furfurylidenaniline, 4-hydroxybenz
ylidene-2'-methylaniline, 4-hydroxybenzylidene-2',6' dimethylaniline, 4-hyd
roxybenzylidene-2'-chloroaniline, 4-hydroxybenzylidenr4'-tert-butylaniline,
4'-hydroxybenzylidene-3,4-15-Crown-5-aniline. The structure of compounds w
ith a general formula [NP(OC6H4CH=N-Ar)(2)](3) or [NP(OC6H4N=CH-Ar)(2)](3),
was determined by IR, UV, H-1-NMR and elemental analysis. IR spectra of al
l compounds showed four characteristic bands located at 1633-1601 cm(-1) 12
42-1150 cm(-1) 1278-1261 cm(-1) and 958-943 cm(1), respectively, correspond
ing to CH=N, P=N, P-N-P (asymmetric) and P-N-P (symmetric) vibrations. Char
acteristic UV bands,named as Band I, Band II, Band III and Band IV located
at 346-308nm, 294-271nm, 262-216nm and 240-210nm respectively, are due to e
lectronic transitions. The H-1-NMR spectra of 4-hydroxyfurfurylidene and th
e phosphazene derivative shows cis-trans izomerization below 305 degrees K
and 295 degrees K.