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Preučevanje katalitskih lastnosti kovinskih kompleksov s heksaarilbenzenskimi ligandi
Djurdjević, Aleksandar (Author), Požgan, Franc (Mentor) More about this mentor... This link opens in a new window

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Abstract
Cilj magistrskega dela je bil preučiti katalitske lastnosti kompleksov kovin prehoda s polipiridinskimi ligandi na izbranih modelnih reakcijah. Stabilni kompleksi kovin prehoda s piridinskimi strukturami kot podpornimi ligandi, so pomembne spojine, tako v homogeni kot heterogeni katalizi. Heksa(piridin-2-il)benzen je spojina s šestimi dušikovimi atomi in je sposoben tvoriti šest koordinacijskih vezi, kar ga uvršča med polidentatne ligande. Do sedaj so znani heksa(piridin-2-il)benzen kompleksi s štirimi kovinami prehoda, in sicer z Ru(II), Pd(II), Pt(II), Cu(I ali II). Sintetizirali smo nekatere že znane heksa(piridin-2-il)benzen komplekse s kovinami prehoda, za katere nas je zanimalo, ali so katalitsko aktivni. Preskusili smo jih na modelnih reakcijah aktivacije C–H vezi in Suzuki reakcije. S spreminjanjem topila pri reakcijah smo preverjali, ali ima topilo vpliv na potek reakcije. Raziskovali smo tudi, kako hitro reakcija poteka s sintetiziranimi kompleksi v primerjavi s komercialno dostopnimi. Na rutenijev(II) heksa(piridin-2-il)benzen kompleks smo uspeli koordinirati Cu(II), da smo dobili nov mešani kompleks, ki bi lahko služil kot potencialni bifunkcionalni katalizator v organskih reakcijah.

Language:Slovenian
Keywords:kovine prehoda, heksa(heteroaril)benzenski ligandi, kataliza
Work type:Master's thesis/paper (mb22)
Tipology:2.09 - Master's Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Technology
Year:2021
COBISS.SI-ID:70956803 This link opens in a new window
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Downloads:23
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Secondary language

Language:English
Title:Investigation of catalytic properties of metal complexes based on hexaarylbenzene ligands
Abstract:
The goal of this master thesis was to study catalytic properties of transition metal complexes with polypiridine ligands on selected model reactions. Stable transition metal complexes with pyridine structures as supporting ligands are important compounds in homogeneous and heterogeneous catalysis. Hexa(2-pyridyl)benzene is a compound with six nitrogen sites, capable of forming six coordinating bonds, which makes it a polidentate ligand. Until now, there are known hexa(2-pyridyl)benzene complexes with four transition metals: Ru(II), Pd(II), Pt(II), Cu(I or II). We have synthesized some of the already known hexa(2-pyridil)benzene complexes with transition metals. We were interested in their catalytic activity. They were tested with model reactions of C–H bond activation and Suzuki reaction. By changing the solvent, we inspected if it has influence on reaction performance. We were also interested in the difference of reaction kinetics when using our catalyst or commercially available ones. We managed to coordinate Cu(II) on Ru(II) hexa(2-pyridyl)benzene complex to obtain mixed metal complex, which could potentially be used as bifunctional catalyst in further organic reactions.

Keywords:transition metals, hexa(heteroaryl)benzene ligands, catalysis

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