Počet záznamů: 1
Host-Guest Binding Hierarchy within Redox- and Luminescence-Responsive Supramolecular Self-Assembly Based on Chalcogenide Clusters and γ-Cyclodextrin
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SYSNO ASEP 0492669 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Host-Guest Binding Hierarchy within Redox- and Luminescence-Responsive Supramolecular Self-Assembly Based on Chalcogenide Clusters and γ-Cyclodextrin Tvůrce(i) Ivanov, A. A. (RU)
Falaise, C. (FR)
Abramov, P. A. (RU)
Shestopalov, M.A. (RU)
Kirakci, Kaplan (UACH-T) SAI, RID, ORCID
Lang, Kamil (UACH-T) SAI, RID, ORCID
Moussawi, M. A. (FR)
Sokolov, M. N. (RU)
Naumov, N. G. (RU)
Floquet, S. (FR)
Landy, D. (FR)
Haouas, M. (FR)
Brylev, K. A. (RU)
Mironov, Y.V. (RU)
Molard, Y. (FR)
Cordier, S. (FR)
Cadot, E. (FR)Celkový počet autorů 17 Zdroj.dok. Chemistry - A European Journal. - : Wiley - ISSN 0947-6539
Roč. 24, č. 51 (2018), s. 13467-13478Poč.str. 12 s. Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova Cyclodextrin ; Electrochemistry ; Luminescence ; Metal cluster complex ; Supramolecular self-assembly Vědní obor RIV CA - Anorganická chemie Obor OECD Inorganic and nuclear chemistry CEP GA18-05076S GA ČR - Grantová agentura ČR Institucionální podpora UACH-T - RVO:61388980 UT WOS 000444413700015 EID SCOPUS 85053321186 DOI 10.1002/chem.201802102 Anotace Water-soluble salts of anionic [Re6Q8(CN)6]4-(Q=S, Se, Te) chalcogenide octahedral rhenium clusters react with γ-cyclodextrin (γ-CD) producing a new type of inclusion compounds. Crystal structures determined through single-crystal X-ray diffraction analysis revealed supramolecular host-guest assemblies resulting from close encapsulations of the octahedral cluster within two γ-CDs. Interestingly, nature of the inner Q ligands influences strongly the host-guest conformation. The cluster [Re6S8(CN)6]4-interacts preferentially with the primary faces of the γ-CD while the bulkier clusters [Re6Se8(CN)6]4-and [Re6Te8(CN)6]4-exhibit specific interactions with the secondary faces of the cyclic host. Furthermore, analysis of the crystal packing reveals additional supramolecular interactions that lead to 2D infinite arrangements with [Re6S8(CN)6]4-or to 1D ´bamboo-like´ columns with [Re6Se8(CN)6]4-and [Re6Te8(CN)6]4-species. Solution studies, using multinuclear NMR methods, ESI-MS and Isothermal titration calorimetry (ITC) corroborates nicely the solid-state investigations showing that supramolecular pre-organization is retained in aqueous solution even in diluted conditions. Furthermore, ITC analysis showed that host-guest stability increases significantly ongoing from S to Te. At last, we report herein that deep inclusion alters significantly the intrinsic physical-chemical properties of the octahedral clusters, allowing redox tuning and near IR luminescence enhancement. Pracoviště Ústav anorganické chemie Kontakt Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Rok sběru 2019
Počet záznamů: 1