Synthesis and structure of small-molecule phosphazene rings bearing fused-ring aryloxy side groups: models for optically useful high polymers
作者:Harry R. Allcock、Saman Al-Shali、Dennis C. Ngo、Karyn B. Visscher、Masood Parvez
DOI:10.1039/dt9950003521
日期:——
series of cyclic tri- and tetra-metric phosphazenes [NP(OR)2]n(n= 3 or 4), N3P3(OR)Cl5 and N3P3(OR)4Cl2 has been prepared with 1- or 2-naphthyloxy, 1-naphthylmethyloxy, 1-naphthylethyloxy, 9-anthryloxy and 9-phenanthryloxy side groups OR. These syntheses are model processes for the preparation of the corresponding phosphazenehighpolymers. The small-molecule compounds were characterized by a combination
一系列环状三和四度量膦腈[NP(OR)2 ] Ñ(ñ = 3或4),N 3 P 3(OR)氯5和N 3 P 3(OR)4氯2已经准备具有1-或2-萘氧基,1-萘甲氧基,1-萘乙氧基,9-蒽氧基和9-菲氧基侧基OR。这些合成是用于制备相应的磷腈高聚物的模型方法。小分子化合物的特征是结合了31种六种化合物的1 H NMR和质谱,元素分析和晶体结构。通常,通过克服空间位阻效应所需的高温反应条件,通过类似的取代技术合成相应的磷腈高聚物的尝试是成功的。
Photophysical studies on multichromophoric cyclotriphosphazenes. Trinuclear excimer formation in hexakis(2-naphthyloxy)cyclotriphosphazene
Hexakis(2-naphthyloxy)cyclotriphosphazene showed an interesting emission behavior between its monomer and excimer forms, the latter nearly completely dominating in water. Encapsulation studies with β-cyclodextrin in water partially revived the monomer emission.
Eco-Friendly Phosphorus and Nitrogen-Rich Inorganic–Organic Hybrid Hypercross-linked Porous Polymers via a Low-Cost Strategy
作者:Amin Abid、Shumaila Razzaque、Irshad Hussain、Bien Tan
DOI:10.1021/acs.macromol.1c00385
日期:2021.6.22
chemical nature and morphology of HCPs were characterized by Fourier transform infrared spectroscopy (FT-IR), 1H NMRspectroscopy, X-ray diffraction (XRD), and scanning electron microscopy (SEM) analysis. The heterogeneity of HCPs obtained showed a moderate uptake of CO2 and I2 due to electron-rich phosphazene units and small pores in the range of 1.15–1.2 nm. These findings offer a simple strategy
通过 Friedel-Crafts 化学构建了富含路易斯碱位 (-P=N) 的低成本无机-有机杂化超交联聚合物 (HCP)。最初,通过六氯环三磷腈与 2-萘酚的亲核取代获得杂原子富集的前体,然后通过 Friedel-Crafts 烷基化聚合生成 P/N 富集的 HCP。结构表征表明所获得的聚合物(HCP-PN-1 和 HCP-PN-2)具有高表面积(420 和 210 m 2 g –1)和分级孔径分布 (PSD)。HCP 的化学性质和形貌通过傅里叶变换红外光谱 (FT-IR) 进行表征,1H NMR 光谱、X 射线衍射 (XRD) 和扫描电子显微镜 (SEM) 分析。由于富含电子的磷腈单元和 1.15-1.2 nm 范围内的小孔,所获得的 HCP 的异质性显示出适度的 CO 2和 I 2吸收。这些发现为合成可扩展数量的富含杂原子的高表面积材料提供了一种简单的策略,用于开发工业用途的吸附材料。
338. Phosphorus-nitrogen compounds. Part VII. Alkoxy- and aryloxy-cyclophosphazenes
作者:B. W. Fitzsimmons、R. A. Shaw
DOI:10.1039/jr9640001735
日期:——
Gleria, Mario; Audisio, Guido; Daolio, Sergio, Journal of the Chemical Society, Dalton Transactions, 1985, p. 1547 - 1554