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Diorganotin Compounds Containing α‐Aminoacidato Schiff Base Ligands Derived from Functionalized 2‐Hydroxy‐5‐(aryldiazenyl)benzaldehyde. Syntheses, Structures and Sensing of Hydrogen Sulfide
European Journal of Inorganic Chemistry ( IF 2.2 ) Pub Date : 2020-05-04 , DOI: 10.1002/ejic.202000177
Tushar S. Basu Baul 1 , Anurag Chaurasiya 1 , Monosh Rabha 1 , Snehadrinarayan Khatua 1 , Antonin Lyčka 2 , Dieter Schollmeyer 3 , Klaus Jurkschat 4
Affiliation  

Three novel bicycloazastannoxides, namely, [nBu2Sn(L1)] (1), [nBu2Sn(L2)] (2) and [Bz2Sn(L3)] (3) were synthesized in one pot procedures by reacting diorganotin(IV) precursors with a mixture composed of an α‐amino acid with either (E)‐2‐hydroxy‐5‐((4‐nitrophenyl)diazenyl)benzaldehyde or (E)‐2‐hydroxy‐5‐(phenyldiazenyl)benzaldehyde. Single‐crystal X‐ray diffraction analysis reveal that compound 1 is monomeric, compound 2 consists of both a monomer and a dimer, while compound 3 is a coordination polymer for which two modifications 3A and 3B were identified. The 119Sn NMR chemical shifts measured in CDCl3 solutions indicate five‐coordinate tin atoms for 13. Further, compounds 1 and 2 were found to be highly selective for sensing hydrogen sulfide in UV/Vis channel in CH3CN/H2O (9:1) media. The development of orange red color is likely the results of a Brønsted‐type acid‐base reaction of H2S with compounds 1 and 2, respectively, giving di‐n‐butyltin sulfide and the corresponding pro‐ligands H2L1 and H2L2, respectively. Theoretical calculations accompany the experimental work.

中文翻译:

含α-氨基酸与席夫碱配体的二有机锡化合物,衍生自功能化的2-羟基-5-(芳基二氮烯基)苯甲醛。硫化氢的合成,结构与传感

一次合成了三种新的双环氮杂双环氧化物,即[ n Bu 2 Sn(L 1)](1),[ n Bu 2 Sn(L 2)](2)和[Bz 2 Sn(L 3)](3)。通过使二有机锡(IV)前体与α-氨基酸与(E)-2-羟基-5-((4-硝基苯基)二氮烯基)苯甲醛或(E)-2-羟基-5的混合物反应来进行罐装程序-(苯基二氮烯基)苯甲醛 X射线单晶衍射分析表明化合物1是单体,化合物2它由单体和二聚体组成,而化合物3是配位聚合物,已鉴定出两个修饰3A3B。在119个在CDCl测定的Sn NMR化学位移3级的解决方案表示五配位的锡原子为1 - 3。此外,发现化合物12对在CH 3 CN / H 2 O(9:1)介质中的UV / Vis通道中检测硫化氢具有高度选择性。橘红色的发展可能是H 2 S与化合物1和H的布朗斯台德酸碱反应的结果2分别给出二硫化二丁基锡和相应的配体H 2 L 1和H 2 L 2。理论计算伴随着实验工作。
更新日期:2020-05-04
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