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Studies on coordination environment of transition metal chloride anionic speciation of N, N-disulfodiisopropylammonium ionic salts and assessment of their Brønsted-Lewis acidic properties
Indian Journal of Chemistry, Section A ( IF 0.412 ) Pub Date : 2020-10-12
Pinky Gogoi, Kabita Boruah, Ruli Borah

Four ionic salts of N, N-disulfodiisopropylammonium cation with complex anionic speciation of metal chlorides such as [FeCl4]-, [NiCl4]2-, [Zn2Cl6]2-/[Zn4Cl10]2-, [CoCl4]2-/[CoCl3]- have been synthesized and characterized with FTIR, NMR, TGA, Raman and electronic spectra. Comparative Brønsted and Lewis acidic strength of the salts have been assessed for catalytic uses in organic reactions via UV-visible Hammett plot and FTIR spectra using pyridine as probe molecule. Band gap values obtained from Tauc plot present their semiconductor behavior to design ionic liquid-based photo catalysts in future.

中文翻译:

N,N-二磺基二异丙基铵离子盐的过渡金属氯化物阴离子形态的配位环境研究及其Brønsted-Lewis酸性性质的评估

N,N-二硫代二异丙基铵阳离子的四种离子盐,具有金属阴离子的复杂阴离子形态,例如[FeCl 4 ] -,[NiCl 4 ] 2-,[Zn 2 Cl 6 ] 2- / [Zn 4 Cl 10 ] 2-,合成了[CoCl 4 ] 2- / [CoCl 3 ] -并用FTIR,NMR,TGA,拉曼光谱和电子光谱进行了表征。比较布朗斯台德和路易斯盐的酸性强度被评定为在有机反应中的催化用途经由使用吡啶作为探针分子的紫外可见Hammett图和FTIR光谱。从Tauc曲线获得的带隙值显示了其在将来设计离子液体基光催化剂时的半导体性能。
更新日期:2020-10-12
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