Mercoledì 6 settembre 2023 - Ore 15:00 - Aula 31
Dott.ssa Alexandra, M. Pop - Babes-Bolyai University
  Seminario  

Organochalcogen compounds containing different donor atoms (nitrogen and/or oxygen) incorporated within the organic groups attached to the chalcogen atoms show a constantly interest based on the their successful use in coordination chemistry, as neutral ligands towards transition metals, being able to stabilize metal complexes with promising optical properties.[1,2]. Having this in mind, we prepared a library of diorganochalcogen(II) and diorganodichalcogen(I) species incorporating 2-C₆H₅-(4H)-oxazol-5-one fragments in their skeleton, capable of promoting optical properties. The coordination ability of such ligands was investigated towards late d metal. For the identification and characterization of the compounds multinuclear NMR (¹H, ¹³C{¹H}, ¹⁹F{¹H}, ³¹P{¹H}, ⁷⁷Se{¹H}), IR spectroscopy, elemental analysis, molar conductivity, and mass spectrometry were employed. Selected species were investigated by single-crystal X-ray diffraction. UV-Vis and fluorescence spectra were recorded for the ligands and for their metal complexes to establish the optical properties.

References
1. Singh, A.; Kaushik, A.; Dhau, J. S.; Kumar, R. Coord. Chem. Rev. 2022, 450, 214254.
2. Arora, A.; Singh, S.; Oswal, P.; Nautiyal, D.; Rao, G. K.; Kumar, S.; Kumar, A. Coord. Chem. Rev. 2021, 438, 213885.