Supramolecular systems based on gold(I) derivatives molecular recognition of L-glutamine and polyQ

L-glutamiinin ja polyglutamiinin molekyylintunnistuksessa käytettyjen uusien organometallikompleksien mielenkiintoiset luminesoivat ominaisuudet ovat peräisin 4-etynyylianiliiniligandista ja fosfaaniyksiköstä sekä molekyylien välisistä Au⋯Au vuorovaikutuksista. Heikkojen intermolekulaaristen vuorova...

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Main Author: Svahn, Noora
Other Authors: Matemaattis-luonnontieteellinen tiedekunta, Faculty of Sciences, Kemian laitos, Department of Chemistry, University of Jyväskylä, Jyväskylän yliopisto
Format: Master's thesis
Language:eng
Published: 2017
Subjects:
Online Access: https://jyx.jyu.fi/handle/123456789/55136
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author Svahn, Noora
author2 Matemaattis-luonnontieteellinen tiedekunta Faculty of Sciences Kemian laitos Department of Chemistry University of Jyväskylä Jyväskylän yliopisto
author_facet Svahn, Noora Matemaattis-luonnontieteellinen tiedekunta Faculty of Sciences Kemian laitos Department of Chemistry University of Jyväskylä Jyväskylän yliopisto Svahn, Noora Matemaattis-luonnontieteellinen tiedekunta Faculty of Sciences Kemian laitos Department of Chemistry University of Jyväskylä Jyväskylän yliopisto
author_sort Svahn, Noora
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description L-glutamiinin ja polyglutamiinin molekyylintunnistuksessa käytettyjen uusien organometallikompleksien mielenkiintoiset luminesoivat ominaisuudet ovat peräisin 4-etynyylianiliiniligandista ja fosfaaniyksiköstä sekä molekyylien välisistä Au⋯Au vuorovaikutuksista. Heikkojen intermolekulaaristen vuorovaikutusten on havaittu johtavan kuitu- ja pallomaisten muotojen morfologisiin muutoksiin vierasmolekyylien läsnä ollessa. Muodostunut isäntä-vieras -kompleksi tuottaa erilaisen emission vierasmolekyylistä riippuen. Lisäksi [Au(4-etynyylianiliini)(PTA)]:n itsejärjestäytymisen termodynaamisia funktioita tutkittiin eri pitoisuuksissa ja lämpötiloissa NMR mittausten avulla. Nämä lineaariset kulta(I) -kompleksit järjestäytyvät pitkiksi kuiduiksi isodesmisen polymerisaatiomekanismin avulla, jonka on havaittu olevan entropian ajama riippumatta aikaisemmista tutkimuksista saman kaltaisilla komplekseilla. The study of new organometallic complexes possessing interesting luminescent properties that stem from the 4-ethynylaniline ligand with a contribution of phosphane unit and Au⋯Au interactions, have been employed in molecular recognition of L-glutamine and polyglutamine. Weak intermolecular interactions have been found to result in fibrillary and spherical shapes of aggregates with different morphology in the presence of the guest molecules. The binding mode in the host-guest system shows different emission behaviour depending on the guest molecule. Furthermore, thermodynamic functions of the self-assembly of [Au(4ethynyl-aniline)(PTA)] was investigated through variable concentration and temperature NMR studies. The linear gold(I) complexes aggregate into long organized fibres via an isodesmic polymerisation mechanism and regardless of the previous studies with related complex the process has been observed to be entropically driven.
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spellingShingle Svahn, Noora Supramolecular systems based on gold(I) derivatives : molecular recognition of L-glutamine and polyQ Aggregation Aurophilic interaction Gold(I) Luminescence Molecular recognition PEG Orgaaninen kemia Organic Chemistry 4035 molekyylit tunnistaminen aggregaatit kulta luminesenssi
title Supramolecular systems based on gold(I) derivatives : molecular recognition of L-glutamine and polyQ
title_alt Molecular recognition of L-glutamine and polyQ
title_full Supramolecular systems based on gold(I) derivatives : molecular recognition of L-glutamine and polyQ
title_fullStr Supramolecular systems based on gold(I) derivatives : molecular recognition of L-glutamine and polyQ Supramolecular systems based on gold(I) derivatives : molecular recognition of L-glutamine and polyQ
title_full_unstemmed Supramolecular systems based on gold(I) derivatives : molecular recognition of L-glutamine and polyQ Supramolecular systems based on gold(I) derivatives : molecular recognition of L-glutamine and polyQ
title_short Supramolecular systems based on gold(I) derivatives
title_sort supramolecular systems based on gold i derivatives molecular recognition of l glutamine and polyq
title_sub molecular recognition of L-glutamine and polyQ
title_txtP Supramolecular systems based on gold(I) derivatives : molecular recognition of L-glutamine and polyQ
topic Aggregation Aurophilic interaction Gold(I) Luminescence Molecular recognition PEG Orgaaninen kemia Organic Chemistry 4035 molekyylit tunnistaminen aggregaatit kulta luminesenssi
topic_facet 4035 Aggregation Aurophilic interaction Gold(I) Luminescence Molecular recognition Orgaaninen kemia Organic Chemistry PEG aggregaatit kulta luminesenssi molekyylit tunnistaminen
url https://jyx.jyu.fi/handle/123456789/55136 http://www.urn.fi/URN:NBN:fi:jyu-201708173513
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