Phosphorus-nitrogen compounds: New spiro-cyclic phosphazene derivatives. Structure of 4 ',4 ',6 ',6 '-tetrachloro-3,4-dihydro-3-(3-methylpyridin-2-yl)-spiro-[1,3,2-benzoxazaphosphinine-2,2 '-(2 lambda(5),4 lambda(5),6 lambda(5)-cyclotriphosphazene)]. Part XII

Dal H., Safran S., Suzen Y., Hokelek T., Kilic Z.

JOURNAL OF MOLECULAR STRUCTURE, vol.753, no.1-3, pp.84-91, 2005 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 753 Issue: 1-3
  • Publication Date: 2005
  • Doi Number: 10.1016/j.molstruc.2005.05.039
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.84-91
  • Keywords: spiro-phosphazenes, crystal structure of phosphazenes, partially substituted phosphazenes, spectroscopic studies of phosphazenes, ANSA, POLY(ORGANOPHOSPHAZENES), CYCLOPHOSPHAZENES, SUBSTITUTION, 4-LAMBDA(5), CHEMISTRY
  • Anadolu University Affiliated: No


The condensation reactions of [N-[(2-hydroxyphenylmethyl)amino]-methylpyridines (5-8) with trimer, N3P3Cl6, have been afforded partially substituted novel spiro-cyclic phosphazene derivatives (9-12) (Scheme 1). Compounds (9-12) have been characterized by elemental analyses, FTIR, 1H-, C-13-, P-31-NMR, HETCOR, and MS. The structure of the spiro-cyclic phosphazene (9) has been examined crystallographically. It crystallizes in the P2(1)/n space group with a= 10.7906(10) angstrom, b=8.5625(17) angstrom, c=21.187(5) angstrom, beta=91.298(12)degrees, V= 1957.1(6) angstrom(3), Z=4 and D-x= 1.660g cm(-3). The structure consists of a non-planar phosphazene ring with a bulky methylpyridinyl and a benzo-fused spiro-cyclic side group. The six-membered spiro-cyclic ring has a twist-boat conformation. (c) 2005 Elsevier B.V. All rights reserved.