Sinteza novih aromatskih C-nitrozo derivata i njihova adsorpcija na površinu zlata

master's thesis

• Title (english): Synthesis of new aromatic C-nitroso derivatives and their adsorption on gold surface
• Author: Ena Asić
• Mentor: Ivana Biljan (mentor)
• Committee member: Ivana Biljan (predsjednik povjerenstva)
• Committee member: Jana Pisk (član povjerenstva)
• Committee member: Adriana Kenđel (član povjerenstva)
• Committee member: Vesna Petrović Peroković (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Chemistry); Zagreb
• Defense date and country: 2024-02-22, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Chemistry

Abstract

U ovom radu provedena je detaljna optimizacija sintetskih postupaka za pripravu novih aromatskih C-nitrozo derivata, koji sadrže funkcijsku skupinu sa sumporom koja im omogućuje adsorpciju na površinu zlata. U nekoliko reakcijskih koraka uspješno su sintetizirani i okarakterizirani bis(4-nitrozobenzil)disulfid i 1,2-bis(4-nitrozobifenil)disulfid. Aromatski C- nitrozo produkti su u posljednjem koraku sinteze pripravljeni redukcijom odgovarajućeg nitro derivata do N-hidroksilamina, koji je potom bez izolacije oksidiran do nitrozo spoja. Provedena su preliminarna istraživanja morfoloških i topografskih karakteristika molekularnih slojeva sintetiziranih aromatskih C-nitrozo derivata na površini zlata(111) uz pomoć mikroskopije atomskih sila. Dobiveni rezultati ukazuju na utjecaj specifičnih strukturnih karakteristika adsorbiranih nitrozo spojeva na njihovo samoudruživanje i dimerizaciju ili polimerizaciju na površini zlata.

Abstract (english)

In this thesis, synthetic procedures for preparation of new aromatic C-nitroso derivatives containing a sulfur functional group for the adsorption on gold surface, were optimized in detail. In several reaction steps, bis(4-nitrosobenzyl)disulfide and 1,2-bis(4-nitrosobiphenyl)disulfide were successfully synthesized and characterized. The aromatic C-nitroso products were prepared in the final step of synthesis pathway by reducing the corresponding nitro derivative to N-hydroxylamine, which was then oxidized to the nitroso compound without isolation. Preliminary investigations of the morphological and topographical characteristics of molecular layers of synthesized aromatic C-nitroso derivatives on gold(111) surface were conducted using atomic force microscopy. The obtained results indicate the influence of specific structural characteristics of adsorbed nitroso compounds on their self-assembly and dimerization or polymerization on the gold surface.

• Keywords: aromatski C-nitrozo derivati; mikroskopija atomskih sila; organska sinteza; samoudruženi molekularni slojevi na zlatu
• Keywords (english): aromatic C-nitroso compounds; atomic force microscopy; organic synthesis; self-assembled molecular layers on gold
• Language: croatian
• URN:NBN: urn:nbn:hr:217:005581
• Project: Number: IP-2020-02-4467; Title: Od aromatskih spojeva s dušikom do novih funkcionalnih organskih materijala; Title: From nitrogen-containing aromatic compounds to new functional organic-based materials; Acronym: FunMaterials; Leader: Ivana Biljan; Jurisdiction: Croatia; Funder: HRZZ; Funding stream: IP
• Study programme: Title: Graduate university studies in chemistry; specializations in: Graduate university studies in chemistry; Course: Graduate university studies in chemistry; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni/a magistar/magistra kemije (sveučilišni/a magistar/magistra kemije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Embargoed access; Embargo expiration date: 2026-02-22
• Created on: 2024-03-11 11:36:06