| Summary: | Rhenium was discovered in 1925 by Walter Noddack, Ida Tacke and Otto Berg. Since then, this metal has come a long way from newly discovered element to very important part of modern technology. Also, coordination compounds with rhenium(I) as central ion have gained much significance. The complex [Re(CO)₃Cl(phen)] was the first carbonyl compound with transition metal that showed luminescence at room temperature solution. Since this groundbreaking work of Wrighton and Morse published in 1974, many more photoluminescent tricarbonyl rhenium(I) compounds with diimine ligands based on 1,10-phenanthroline (R-phen) and 2,2’-bipyridine (R-bpy) cores were synthesized and thoroughly investigated. These compounds have been at the center of scientific attention mostly because of their possible applications in solar energy conversion devices, luminescent sensors, photosensitization of organic substrates, organic, light-emitting diodes (OLED) and other domains, such as catalysis or medical chemistry. Within this dissertation I have studied how the structural modifications of 2,2':6',2"-terpyridine (terpy), 2,6-dithiazolylpyridine (dtpy) and 2,6-dipyrazinylpyridine (dppy) influence optical, thermal, electrochemical and electroluminescent properties of carbonyl rhenium(I) coordination compounds. My inspiration to undertake this research were the results of experimental and theoretical studies by Wang et al, and also by Velmurugan and Venuvanalingam. Those studies were dealing with the possibility to enhance emissive properties of [Re(CO)₃Cl(terpy)] complex by introducing structural modifications to terpyridine ligand, as well as possible use of this type of compounds in OLED technology. In comparison to thoroughly researched complexes of [Re(CO)₃Cl(R-bpy)] and [Re(CO)₃Cl(R-phen)] type, those with 2,2':6',2"-terpyridine derivatives were poorly described in literature. What is more, coordination properties of 2,6-dithiazolylpyridine and 2,6-dipyrazinylpyridine (ligands designed as 2,2':6',2''-terpyridine analogues) towards ...
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