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dc.contributor.author | Ksenofontov A. | |
dc.contributor.author | Guseva G. | |
dc.contributor.author | Antinа E. | |
dc.contributor.author | Khodov I. | |
dc.contributor.author | Vyugin A. | |
dc.date.accessioned | 2018-09-19T20:39:47Z | |
dc.date.available | 2018-09-19T20:39:47Z | |
dc.date.issued | 2017 | |
dc.identifier.issn | 0925-4005 | |
dc.identifier.uri | https://dspace.kpfu.ru/xmlui/handle/net/143102 | |
dc.description.abstract | © 2017 Elsevier B.V.It was found that 3,3′-, 2,3′ and 2,2′-zinc(II) bis(dipyrromethenate)s ([Zn2L2]) form stable supramolecular complexes of the composition [Zn2L2(DMSO)n] (n = 1 or 2) with dimethyl sulfoxide (DMSO). The [Zn2L2(DMSO)n] are stable in the solid phase and solutions. Composition, stability, and spectral-luminescent properties of the [Zn2L2(DMSO)n] crystal solvates were studied by means of FTIR, PXRD, 1H NMR, DOSY, absorption and fluorescence analyses. Spectroscopic studies showed that the quantum yields (φ) of [Zn2L2(DMSO)n] are lower (to ∼1.6–3.6 times) than quantum yields (φо) of [Zn2L2] in cyclohexane. Quantum-chemical study allowed to suggest the most likely mechanism of the DMSO molecules coordination on the coordinating centers of [Zn2L2]. It is demonstrated, that the high-energy coordination interactions (Zn − O) in [Zn2L2(DMSO)n] are the main cause of the fluorescence quenching of [Zn2L2] in the presence of DMSO. Fluorescence quenching of [Zn2L2] in the DMSO presence is based on the photoinduced electron transfer (PeT) mechanism. The obtained results are interesting for the development of new [Zn2L2] fluorescent sensors of the DMSO molecules. | |
dc.relation.ispartofseries | Sensors and Actuators, B: Chemical | |
dc.subject | 1 H NMR | |
dc.subject | Crystal solvates | |
dc.subject | DOSY | |
dc.subject | Fluorescence analysis | |
dc.subject | Stability | |
dc.subject | Zinc(II) bis(dipyrromethenate)s | |
dc.title | Zinc(II) bis(dipyrromethenate)s crystal solvates with dimethyl sulfoxide Composition, stability and spectral-luminescent properties | |
dc.type | Article | |
dc.relation.ispartofseries-volume | 251 | |
dc.collection | Публикации сотрудников КФУ | |
dc.relation.startpage | 858 | |
dc.source.id | SCOPUS09254005-2017-251-SID85020047247 |