Spectroscopic and thermal properties of stannadithiane compounds bearing endocyclic ether and lactone groups
Autor: | Aammer Saeed, Carlos O. Della Védova, Mauricio F. Erben, Ileana Daniela Lick, Zuly Yuliana Delgado Espinosa |
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Rok vydání: | 2019 |
Předmět: |
chemistry.chemical_classification
Thermogravimetric analysis Infrared Chemistry Ether 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics 0104 chemical sciences Analytical Chemistry Pseudopotential chemistry.chemical_compound Crystallography symbols.namesake Spirolactone Potential energy surface symbols 0210 nano-technology Raman spectroscopy Instrumentation Spectroscopy Lactone |
Zdroj: | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 210:222-229 |
ISSN: | 1386-1425 |
Popis: | Four related stannadithiane compounds containing different endocyclic functional groups -including ether (1), diether (2), lactone (3), and spirolactone (4)- were prepared. The conformational landscape has been fully determined for the 8-membered representative (compound 1) resulting in a distorted crown form with the butyl chains adopting an extended conformation. The infrared and Raman spectra of stannadithiane species have been measured and interpreted, aided by quantum chemical calculations and potential energy surface analysis. Special attention has been devoted to the analysis of the vibrational features of the heterocyclic moieties. The characteristic νas(Sn S) and νs(Sn S) stretching modes of the SnS2 endo-cyclic group were clearly observed in the Raman spectra at around 340 and 315 cm−1, respectively. The exo-cyclic ν(Sn C) stretching modes were found near 590 and 565 cm−1 for the antisymmetric and symmetric motions, respectively. Thermal behavior for compounds 2–4 has been determined by thermogravimetric methods. |
Databáze: | OpenAIRE |
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