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New Multinuclear Copper and Silver Clusters Protected by Phosphine Ligands

Hao, Minting 1,2
1 Institut für Anorganische Chemie (AOC), Karlsruher Institut für Technologie (KIT)
2 Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

Inspired by the research work about coinage metal chalcogenide clusters, the synthesis and structures of a series of silver or copper chalcogenide compounds have been reported in this thesis. In addition, the photoluminescence properties of several compounds have been explored.
In the first part, the synthesis of smaller copper clusters obtained from copper thiolates and phosphine ligands is described. The solubility of copper thiolates in common solvents is low. But by the addition of phosphine ligands, copper thiolates phosphine oligomers can be dissolved. Then these species can be crystallized by layering with non-polar solvents. This kind of compound can be understood as precursors of the following larger clusters. Nine combinations have been selected to carry out luminescence measurements. It is observed that their optical properties are influenced by the size of the clusters, shape of the core, nature of the ligands, etc. A possible reason for the light emission is a ligand to metal charge transfer (LMCT), which has been discussed in literature before.
In the second part, the synthetic approach was widened from the isolation of binary to that of ternary compounds using an additional polyoxomolybdate source. ... mehr


Volltext §
DOI: 10.5445/IR/1000150480
Veröffentlicht am 28.11.2022
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Anorganische Chemie (AOC)
Institut für Nanotechnologie (INT)
Publikationstyp Hochschulschrift
Publikationsdatum 28.11.2022
Sprache Englisch
Identifikator KITopen-ID: 1000150480
HGF-Programm 43.31.01 (POF IV, LK 01) Multifunctionality Molecular Design & Material Architecture
Verlag Karlsruher Institut für Technologie (KIT)
Umfang 257 S.
Art der Arbeit Dissertation
Fakultät Fakultät für Chemie und Biowissenschaften (CHEM-BIO)
Institut Institut für Nanotechnologie (INT)
Prüfungsdatum 21.07.2022
Schlagwörter Chalcogenide, coinage metal, clusters
Referent/Betreuer Fenske, Dieter
Roesky, Peter W.
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