title: Phosphorus-nitrogen compounds. Part 20: Fully substituted spiro-cyclotriphosphazenic lariat (PNP-pivot) ether derivatives.
abstract: The condensation reactions of partly substituted spiro-cyclotriphosphazenic lariat (PNP-pivot) ethers, N(3)P(3)[(o-NHPhO)(2)R]Cl(4) [where R=-CH(2)CH(2)- (1) and -CH(2)CH(2)OCH(2)CH(2)- (2)] with morpholine and 1,4-dioxa-8-azaspiro[4,5]decane (DASD) produce fully substituted morpholino (3 and 4) and 1,4-dioxa-8-azaspiro[4,5]deca (5 and 6) phosphazenes. These are the new examples of the spiro-cyclophosphazenic lariat ether derivatives with N(2)O(x) (x=2 and 3) donor type containing 11- and 14-membered macrocycles. The solid state structures of 3, 5 and 6 have been determined by X-ray diffraction techniques. Compound 3 has intermolecular N-H...O hydrogen bond, compound 5 has intra- and intermolecular N-H...O hydrogen bonds, while compound 6 has intramolecular N-H...O and O-H...N and intermolecular N-H...O and O-H...O hydrogen bonds. The correlations of the endocyclic (alpha) and exocyclic (alpha') NPN bond angles with deltaP(spiro) values are investigated. The structural investigations of 3-6 have been verified by elemental analyses, MS, FTIR, (1)H, (13)C and (31)P NMR, DEPT and HETCOR techniques.
authors.affiliation: Department of Chemistry, Ankara University, Tandoğan 06100, Ankara, Turkey.
authors.forename: Aytuğ
authors.initials: A
authors.lastname: Okumuş
authors.forename: Selen
authors.initials: S
authors.lastname: Bilge
authors.forename: Zeynel
authors.initials: Z
authors.lastname: Kiliç
authors.forename: Asli
authors.initials: A
authors.lastname: Oztürk
authors.forename: Tuncer
authors.initials: T
authors.lastname: Hökelek
authors.forename: Filiz
authors.initials: F
authors.lastname: Yilmaz
mesh_terms: D018360:Crystallography, X-Ray; D004987:Ethers / Q000737:chemistry*; D017672:Nitrogen Compounds / Q000737:chemistry*; D017553:Phosphorus Compounds / Q000737:chemistry*; D013057:Spectrum Analysis; D013141:Spiro Compounds / Q000737:chemistry
chemical_list: D004987:Ethers; D017672:Nitrogen Compounds; D017553:Phosphorus Compounds; D013141:Spiro Compounds