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Synthesis and metal coordination of thioether containing cyclo- and poly(organophosphazenes)

机译:含硫醚的环和聚有机磷腈的合成及金属配位

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Several small molecule cyclotriphosphazenes and high polymeric poly(organophosphazenes) with methylthio groups (CH3SR) have been synthesized: [NP(OCH2CH2SCH3)(2)](n) (n = 3, 1; n = 15,000, 5); [NP(OCH2CH2CH2CH2SCH3)(2)](n) (n = 3, 2; n = 15,000, 6); [NP(OCH2CH2CH(SCH3)CH2CH2CH3)(2)](n) (n = 3, 3; n = 15,000, 7); and [NP(OCH2C6H4SCH3)(2)](n) (n = 3, 4; n = 15,000, 8). Both series of compounds possess multiple thioether coordination sites for potential binding to metals. The methylthioethoxide substituent readily oxidizes to the sulfoxide derivatives in the presence of peroxides. All the phosphazenes were characterized by H-1-, C-13-, and P-31-NMR spectroscopy and elemental analysis, and the small molecule cyclotriphosphazenes were examined by mass spectrometry. Gel permeation chromatography (GPC) and differential scanning calorimetry (DSC) were also employed to characterize the polymers. Metal complexation and extraction capabilities of both the small molecule and polymeric systems are described. (C) 2000 John Wiley & Sons, Inc. [References: 40]
机译:已合成了几种小分子的环三磷腈和具有甲硫基(CH3SR)的高聚物聚(有机磷腈):[NP(OCH2CH2SCH3)(2)](n)(n = 3,1; n = 15,000,5); [NP(OCH2CH2CH2CH2SCH3)(2)](n)(n = 3,2; n = 15,000,6); [NP(OCH2CH2CH(SCH3)CH2CH2CH3)(2)](n)(n = 3,3; n = 15,000,7);和[NP(OCH2C6H4SCH3)(2)](n)(n = 3,4; n = 15,000,8)。这两个系列的化合物均具有多个硫醚配位位点,可潜在地与金属结合。在过氧化物的存在下,甲硫基乙氧基取代基容易氧化为亚砜衍生物。所有磷腈都通过H-1-,C-13-和P-31-NMR光谱和元素分析进行​​了表征,并通过质谱法检测了小分子环三磷腈。凝胶渗透色谱法(GPC)和差示扫描量热法(DSC)也用于表征聚合物。描述了小分子和聚合物系统的金属络合和萃取能力。 (C)2000 John Wiley&Sons,Inc. [参考:40]

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