Metaloorganske jedinke CoCl2L2 kao akceptori halogenske veze u kokristalima s perhalogeniranim spojevima

Lisac, Katarina

prikaz prve stranice dokumenta Metaloorganske jedinke CoCl2L2 kao akceptori halogenske veze u kokristalima s perhalogeniranim spojevima

Download
PDF 17.81 MB

doctoral thesis

Metaloorganske jedinke CoCl2L2 kao akceptori halogenske veze u kokristalima s perhalogeniranim spojevima

Zagreb: University of Zagreb, Faculty of Science, 2021. urn:nbn:hr:217:435500

Lisac, Katarina

University of Zagreb
Faculty of Science
Department of Chemistry

Cite this document

APA 6th Edition

Lisac, K. (2021). Metaloorganske jedinke CoCl2L2 kao akceptori halogenske veze u kokristalima s perhalogeniranim spojevima (Doctoral thesis). Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:435500

MLA 8th Edition

Lisac, Katarina. "Metaloorganske jedinke CoCl2L2 kao akceptori halogenske veze u kokristalima s perhalogeniranim spojevima." Doctoral thesis, University of Zagreb, Faculty of Science, 2021. https://urn.nsk.hr/urn:nbn:hr:217:435500

Chicago 17th Edition

Harvard

Lisac, K. (2021). 'Metaloorganske jedinke CoCl2L2 kao akceptori halogenske veze u kokristalima s perhalogeniranim spojevima', Doctoral thesis, University of Zagreb, Faculty of Science, accessed 01 April 2023, https://urn.nsk.hr/urn:nbn:hr:217:435500

Vancouver

Lisac K. Metaloorganske jedinke CoCl2L2 kao akceptori halogenske veze u kokristalima s perhalogeniranim spojevima [Doctoral thesis]. Zagreb: University of Zagreb, Faculty of Science; 2021 [cited 2023 April 01] Available at: https://urn.nsk.hr/urn:nbn:hr:217:435500

IEEE

K. Lisac, "Metaloorganske jedinke CoCl2L2 kao akceptori halogenske veze u kokristalima s perhalogeniranim spojevima", Doctoral thesis, University of Zagreb, Faculty of Science, Zagreb, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:217:435500

Cite this item: https://urn.nsk.hr/urn:nbn:hr:217:435500

Please login to the repository to save this object to your list.

Metadata

Title	Metaloorganske jedinke CoCl2L2 kao akceptori halogenske veze u kokristalima s perhalogeniranim spojevima
Title (english)	Metal-organic CoCl2L2 units as halogen bond acceptors in cocrystals with perhalogenated compounds
Author	Katarina Lisac
Mentor	Dominik Cinčić (mentor)
Committee member	Mirta Rubčić (predsjednik povjerenstva)
Committee member	Krunoslav Užarević (član povjerenstva)
Committee member	Ivan Kodrin (član povjerenstva)
Granter	University of Zagreb Faculty of Science (Department of Chemistry) Zagreb
Defense date and country	2021-12-18, Croatia
Scientific / art field, discipline and subdiscipline	NATURAL SCIENCES Chemistry
Universal decimal classification (UDC)	54 - Chemistry. Crystallography. Mineralogy
Abstract	Ispitana je mogućnost kokristalizacije koordinacijskih spojeva CoCl2L2 (L = 1,10-fenantrolin, 2,2'-bipiridin, 2-benzoilpiridin i 2-acetilpiridin) i perhalogeniranih donora halogenske veze mehanokemijskom sintezom te su pripravljene 42 nove kristalne faze koje su okarakterizirane difrakcijom rentgenskog zračenja na praškastom uzorku. Kristalizacijom iz otopine pripravljena su 34 jedinična kristala. Rentgenskom strukturnom analizom utvrđeno je kako je halogenska veza Co−Cl···I dominantna međumolekulska interakcija u kokristalima. Supramolekulsku arhitekturu određenu halogenskim vezama koje povezuju molekule u kokristalima može se podijeliti na diskretne supramolekulske komplekse, lance, dvodimenzijske i trodimenzijske mreže što se može u određenoj mjeri dovesti u svezu s vrstom korištenih donora, ali i akceptora. Pripravljenim spojevima je termogravimetrijskom analizom ispitana termička stabilnost. Nekoliko odabranih mehanokemijskih reakcija praćeno je in situ difrakcijom sinkrotronskog rentgenskog zračenja na praškastom uzorku. Utvrđeno je kako tijekom reakcija prvo dolazi do nastanka kokristala s cis-CoCl2L2 metaloorganskom jedinkom, a zatim dolazi do prelaska u termodinamički stabilniji kokristal s trans-CoCl2L2 metaloorganskom jedinkom.
Abstract (english)	The possibility of cocrystallisation of CoCl2L2 metal complexes (L = 1,10-phenanthroline, 2,2'- bipyridine, 2-benzoylpyridine and 2-acetylpyridine) and perhalogenated halogen donors was investigated by mechanochemical synthesis and 42 new crystal phases were prepared and characterised by powder X-ray diffraction. Solution-based crystallisation yielded 34 single crystals. It was determined that the halogen bond Co–Cl···I is the dominant intermolecular interaction in the cocrystals by X-ray structural analysis. The halogen-bonded architectures in cocrystals can be divided into discrete supramolecular complexes, chains, two- and threedimensional networks, which can be related, to some extent, to the type of donor and acceptor used. The thermal stability of the compounds was studied by thermogravimetric analysis. Several selected mechanochemical reactions were monitored in situ by powder synchrotron Xray diffraction. It was found that during the reactions a cocrystal with cis-CoCl2L2 metalorganic unit is formed first, followed by a transition to a thermodynamically more stable cocrystal with trans-CoCl2L2 metal-organic unit.
Keywords
Keywords (english)
Language	croatian
URN:NBN	urn:nbn:hr:217:435500
Promotion	2021
Study programme	Title: Doctoral study in chemistry Study programme type: university Study level: postgraduate Academic / professional title: doktor/doktorica znanosti, područje prirodnih znanosti, polje kemija (doktor/doktorica znanosti, područje prirodnih znanosti, polje kemija)
Type of resource	Text
Extent	158 str. ; 30 cm
File origin	Born digital
Access conditions	Open access Embargo expiration date: 2021-12-18
Terms of use
Repository	Repository of the Faculty of Science
Created on	2021-02-10 14:20:46