Centrosymmetric Binuclear Boron Compounds Derived from Dithiooxamides: Synthesis, Characterization, and Their Photophysical Properties

Ibarra Rodríguez, Marisol y Muñoz Flores, Blanca M. y Lara Cerón, Jesús Alfredo y Santillan, Rosa L. y Ochoa, Maria Eugenia y Waksman de Torres, Noemí y Jiménez Pérez, Víctor M. (2018) Centrosymmetric Binuclear Boron Compounds Derived from Dithiooxamides: Synthesis, Characterization, and Their Photophysical Properties. Journal of Chemistry, 2018. pp. 1-10. ISSN 2090-9063

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Resumen

In this paper, we report the synthesis and characterization of new boron compounds derived from dithiooxamides. /e compounds were characterized by NMR (1 H and 13C), UV-vis, fluorescence spectroscopy, and high resolution mass spectrometry. /e crystal structure of the mononuclear boron compound was determined by single-crystal X-ray diffraction analysis. /e photophysical properties of the boron compounds were investigated, and we found moderate fluorescence emission (compound 2 ΦF: 4.07% and compound 4 ΦF: 2.89%). We also observed that the mononuclear complex presented greater stability. Compound 4 showed interesting luminescent properties; in solid state, it exhibited an increase in fluorescence by mechanostimuli by changing to a bright red color, and also in solution, it showed a decrease in fluorescence intensity when oxygen and air were supplied to the solution

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