1-甲基-2,6-二甲基-4-羟基吡啶鎓氯化物一水合物和溴化物一水合物的合成、光谱、光学及热学研究
Synthesis, spectral, optical and thermal studies of 1-methyl-2,6-dimethyl-4-hydroxypyridinium chloride monohydrate and bromide monohydrate.
作者信息
Dhanuskodi S, Manivannan S, Philip J
机构信息
School of Physics, Bharathidasan University, Tiruchirappalli 620024, India.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2008 Apr;69(4):1207-12. doi: 10.1016/j.saa.2007.06.037. Epub 2007 Aug 20.
Semiorganic 1-methyl-2,6-dimethyl-4-hydroxypyridinium chloride monohydrate (MDMPCl.H(2)O) and bromide monohydrate (MDMPBr.H(2)O) salts have been synthesized. Single crystals of MDMPCl.H(2)O and MDMPBr.H(2)O were grown by the slow evaporation method from aqueous solution at constant temperatures 30 and 32 degrees C respectively. The grown crystals were characterized by elemental analysis, FT-IR and FT-NMR techniques and their molecular structures were elucidated. Thermogravimetric, differential thermal analyses and differential scanning calorimetry reveal the presence of water molecules in the crystal lattices and thermal stabilities. Optical transmittance windows in aqueous solution were found as 300-1100 nm using UV-vis-NIR spectrophotometer.
已合成半有机的1-甲基-2,6-二甲基-4-羟基吡啶氯化物一水合物（MDMPCl·H₂O）和溴化物一水合物（MDMPBr·H₂O）盐。MDMPCl·H₂O和MDMPBr·H₂O的单晶分别通过恒温30℃和32℃下从水溶液中缓慢蒸发的方法生长。通过元素分析、傅里叶变换红外光谱（FT-IR）和傅里叶变换核磁共振（FT-NMR）技术对生长的晶体进行了表征，并阐明了它们的分子结构。热重分析、差示热分析和差示扫描量热法揭示了晶格中水分子的存在及其热稳定性。使用紫外-可见-近红外分光光度计发现水溶液中的光学透过率窗口为300-1100nm。
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