Authors: | Basu Baul, Tushar S. Chaurasiya, Anurag Rabha, Monosh Khatua, Snehadrinarayan Lyčka, Antonin Schollmeyer, Dieter Jurkschat, Klaus |
Title: | Diorganotin compounds containing α-aminoacidato schiff base ligands derived from functionalized 2-Hydroxy-5-(aryldiazenyl)benzaldehyde |
Other Titles: | syntheses, structures and sensing of hydrogen sulfide |
Language (ISO): | en |
Abstract: | 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 1–3. 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. |
Subject Headings: | Tin Ligands with azo-imino groups Structure elucidation Sensing studies |
URI: | http://hdl.handle.net/2003/40322 http://dx.doi.org/10.17877/DE290R-22197 |
Issue Date: | 2020-04-03 |
Rights link: | https://creativecommons.org/licenses/by/4.0/ |
Appears in Collections: | Lehrstühle für Anorganische Chemie |
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ejic.202000177.pdf | 2.53 MB | Adobe PDF | View/Open |
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