کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9770009 | 1501938 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phosphorus-nitrogen compounds: novel spiro-cyclophosphazenic lariat (PNP-pivot) ether derivatives. Structures of 4,4,6,6-tetrachloro-2,2-[3-oxa-1,5-pentane dioxy bis(2-phenylamino)]cyclo-2λ5,4λ5,6λ5-triphosphazene and 4,4,6,6-tetrachloro-2,2-[1,2-xylyl
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The condensation reactions of N2Ox (x=2, 3) donor type bifunctional aminopodands 1-4 with hexachlorocyclotriphosphazatriene, N3P3Cl6, have been investigated and the partly substituted 5-8 novel spiro-cyclic phosphaza (PNP) lariat ethers, having various different ring sizes between 11 and 14-membered macrocycles, have been prepared. Compounds 5-8 are the first examples of the spiro-cyclic phosphaza (PNP) lariat ether derivatives consisting of the aminopodand precursors. Interestingly, in the macrocyclic rings of the compounds 5-8, there are four-centered (trifurcate) N-Hâ¯O/N-Hâ¯N hydrogen bonds. The relative radii of the ring inner-hole sizes for 5-8 are 1.14, 0.95, 1.14 and 1.38 Ã
. Salient futures of the spectral data (1H-, 13C-, 31P-NMR, HETCOR, FTIR and MS) are presented. The molecular structures of compounds 7 and 8 were determined by X-ray diffraction techniques.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 748, Issues 1â3, 30 June 2005, Pages 39-47
Journal: Journal of Molecular Structure - Volume 748, Issues 1â3, 30 June 2005, Pages 39-47
نویسندگان
Bilgehan Ãzgüç, Selen Bilge, Nagihan Ãaylak, Åemsay Demiriz, Hikmet Ä°Åler, Mustafa Hayvalı, Zeynel Kılıç, Tuncer Hökelek,