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  • Küçük Resim Yok
    Öğe
    2-(2,6-DI-TERT-BUTYLPHENOXY)-2',4,4,4',4',6,6,6',6'-NONACHLORO-2,2'-BI(CYCLOTRI-LAMBDA-5-PHOSPHAZENE)
    (Munksgaard Int Publ Ltd, 1994) HOKELEK, T; KILIC, Z; KILIC, A
    The title compound consists of the bulky 2,6-di-tert-butylphenoxy group and two phosphazene rings joined by a P-P bond [2.193 (2) angstrom]. The bulky group plays a predominant role in the distortion of the molecule as a whole. This distortion results in deviations of the benzene and phosphazene rings from planarity and twists the rings with respect to each other. In monocyclophosphazenes, the endocyclic angles about the P atom decrease while the exocyclic angles increase. This is in contrast to the behaviour of title compound (a bicyclophosphazene) in which the exo- and endocyclic angles about the P atoms both decrease on substitution.
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    Öğe
    AMINOLYSIS OF P-TRICHLORO-N-DICHLOROPHOSPHORYLMONOPHOSPHAZENE AND THE CRYSTAL-STRUCTURE OF 1-(DICHLOROPHOSPHINYL)-2-CHLORO-2,2-BIS(DIISOPROPYLAMINO)PHOSPHAZINE
    (John Wiley & Sons Inc, 1994) KILIC, Z; GUNDUZ, N; YILDIZ, M; KILIC, A; MOR, S; ERCAN, F; HOKELEK, T
    The reactions of Cl3P=N-P(O)Cl-2 (1) with primary and secondary amines have been studied. The following monophosphazenes, (RRN)(3)P=N-P(O)(NRR)(2), and bis(phosphinoyl)amines, [(RRN)(2)P(O)]2NH were isolated: NRR = NHCH(2)Ph, NEt(2), NH(CH2)(2)CH3 groups for monophosphazenes, and NEt(2), NH(CH2)(2)CH3 for phosphinoyl amines. The unexpected geminal phosphazene, Cl(RRN)(2)P=N-P(O)Cl-2, {RRN = N[CH(CH3)(2)](2)}, was also obtained in moderate yield. The spectral data (IR, H-1, C-13, and P-31 NMR, and MS) are presented. The structure of 1-(dichlorophosphinyl)-2-chloro-2,2-bis(diisopropylamino) phosphazene (5) was determined by X-ray crystallography. The basicities of these and related compounds in nonaqueous nitrobenzene solution were obtained by potentiometric titration.