Obhajoba dizertační práce - Oleksandra Veselska
Dne 17. října 2019 proběhla v Université Lyon 1 obhajoba dizertace naší nové kolegyně Oleksandry Veselské.
Vedoucí práce byl Dr. Aude Demessence (IRCELYON, Université Lyon 1) ve spolupráci s Dr. Gillesem Ledouxem (iLM, Université Lyon 1) a Dr. Pierre Bordetem (Institut Néel, Université Grenoble Alpes).
Tato práce patří do oblasti koordinační chemie s názvem: „Structural and photophysical studies of coordination polymers of coinage metal thiolates“ (fr. „Etudes structes et photophysiques de polymères de koordinační thiolates de métaux monétaires“).
Abstract
The coordination polymers (CPs) based on thiolates of coinage metals are well known for their luminescence properties. However, their structures stayed underexplored.
In the thesis we present a pioneering study targeting the understanding of the structure formation and the ‘structure-properties’ correlation for neutral homoleptic CPs, [M(SR)]n, M = Cu(I), Ag(I), Au(I). The compounds with thiophenolate derivatives studied in the work, illustrate how the use of some functionalized organic ligands leads to the formation of extended 2D networks or 1D columns by addition of some steric hindrance. The first comparative structural study of amorphous thiolated CPs was performed by PDF analysis.
The photophysical studies showed the diversity of luminescent properties of the CPs based on thiolates of coinage metals. Double or multiple emission peaks, high quantum yield of orange-to-infrared emitters, significant lifetime variation with temperature… all of these intrinsic properties reveal the high potential of these compounds for diverse optical applications.
Keywords: thiolate coordination polymer, coinage metals, 1D / 2D extended network, luminescence, double emitters, NIR emitters, luminescence thermometry.