首页> 外文会议>ICT International Annual Conference >Preparation and Solid State ~(13)C-NMR of the Four Stable Phases of 2,4,6,8,10,12-Hexanitro-2,4,6,8,10,12-hexaazatetracyclo5.5.0.0~(5.9).0~(3,11)dodecane (HNIW, CL 20)
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Preparation and Solid State ~(13)C-NMR of the Four Stable Phases of 2,4,6,8,10,12-Hexanitro-2,4,6,8,10,12-hexaazatetracyclo5.5.0.0~(5.9).0~(3,11)dodecane (HNIW, CL 20)

机译:制备和固态〜(13)C-NMR的四个稳定相2,4,6,8,12-12-己酸-2,4,6,8,10,12-六己酰谱5.5.0.0〜( 5.9).0〜(3,11)十二烷(HNIW,CL 20)

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摘要

CL 20 was prepared in a four step synthesis by a variation of Nielsen's classical method. This produced the alpha hydrated phase of CL 20. The other polymorphs were prepared by solution/precipitation in selected solvent/non-solvent pairs. The phase transitions obtained were alpha to beta, beta to gamma and beta to epsilon. FT-IR spectra of some polymorphs were recorded. Solid state ~(13)C NMR was done under cross polarisation conditions with magic angle spinning and a tentative assignment of the signals was attempted.
机译:通过尼尔森的经典方法的变化,在四步合成中制备了Cl 20。这产生了Cl 20的α水合相。通过选定的溶剂/非溶剂对中的溶液/沉淀制备其它多晶型物。获得的相转变是α至β,β至γ和β至ePsilon。记录了一些多晶型物的FT-IR光谱。固态〜(13)C NMR在具有魔法角旋转的交叉偏振条件下进行,并尝试暂定分配信号。

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