prikaz prve stranice dokumenta Metaloorganske jedinke CoCl2L2 kao akceptori halogenske veze u kokristalima s perhalogeniranim spojevima
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doctoral thesis
Metaloorganske jedinke CoCl2L2 kao akceptori halogenske veze u kokristalima s perhalogeniranim spojevima
Zagreb: University of Zagreb, Faculty of Science, 2020. urn:nbn:hr:217:435500
Lisac, Katarina
University of Zagreb
Faculty of Science
Department of Chemistry

Institutional repository: Repository of the Faculty of Science

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Lisac, K. (2020). Metaloorganske jedinke CoCl2L2 kao akceptori halogenske veze u kokristalima s perhalogeniranim spojevima (Doctoral thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:435500

Lisac, Katarina. "Metaloorganske jedinke CoCl2L2 kao akceptori halogenske veze u kokristalima s perhalogeniranim spojevima." Doctoral thesis, University of Zagreb, Faculty of Science, 2020. https://urn.nsk.hr/urn:nbn:hr:217:435500

Lisac, Katarina. "Metaloorganske jedinke CoCl2L2 kao akceptori halogenske veze u kokristalima s perhalogeniranim spojevima." Doctoral thesis, University of Zagreb, Faculty of Science, 2020. https://urn.nsk.hr/urn:nbn:hr:217:435500

Lisac, K. (2020). 'Metaloorganske jedinke CoCl2L2 kao akceptori halogenske veze u kokristalima s perhalogeniranim spojevima', Doctoral thesis, University of Zagreb, Faculty of Science, accessed 26 November 2024, https://urn.nsk.hr/urn:nbn:hr:217:435500

Lisac K. Metaloorganske jedinke CoCl2L2 kao akceptori halogenske veze u kokristalima s perhalogeniranim spojevima [Doctoral thesis]. Zagreb: University of Zagreb, Faculty of Science; 2020 [cited 2024 November 26] Available at: https://urn.nsk.hr/urn:nbn:hr:217:435500

K. Lisac, "Metaloorganske jedinke CoCl2L2 kao akceptori halogenske veze u kokristalima s perhalogeniranim spojevima", Doctoral thesis, University of Zagreb, Faculty of Science, Zagreb, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:217:435500

Metadata
TitleMetaloorganske 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
AuthorKatarina Lisac
MentorDominik Cinčić (mentor)
Committee memberMirta Rubčić (predsjednik povjerenstva)
Committee memberKrunoslav Užarević (član povjerenstva)
Committee memberIvan Kodrin (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Chemistry)
Zagreb
Defense date and country2020-12-18, 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)
Languagecroatian
URN:NBNurn:nbn:hr:217:435500
Promotion2021
Study programmeTitle: 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 resourceText
Extent158 str. ; 30 cm
File originBorn digital
Access conditionsOpen access
Embargo expiration date: 2021-12-18
Terms of useLicence In copyright icon
Created on2021-02-10 14:20:46