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Spectroscopic and photophysical studies of a naphthalene-based emissive probe for metal cations

C.S. De Castro, J. Sérgio Seixas De Melo, A. Fernández-Lodeiro, C. Núñez, C. Lodeiro, Catherine De Castro Orcid Logo

Inorganic Chemistry Communications, Volume: 47, Pages: 27 - 32

Swansea University Author: Catherine De Castro Orcid Logo

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DOI (Published version): 10.1016/j.inoche.2014.07.007

Abstract

A comprehensive photophysical characterization of a bis-naphthalene derivative, L, was carried out in acetonitrile, using UV–Vis absorption, steady-state and time-resolved emission spectroscopy. It was found that in the 250–400 nm region, the absorption spectra showed two bands with maxima at ~ 220...

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Published in: Inorganic Chemistry Communications
ISSN: 1387-7003
Published: 2014
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URI: https://cronfa.swan.ac.uk/Record/cronfa31929
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spelling 2017-04-07T11:48:30.7902281 v2 31929 2017-02-10 Spectroscopic and photophysical studies of a naphthalene-based emissive probe for metal cations 9523c09d78056932bb9b6959b559323e 0000-0003-0649-3427 Catherine De Castro Catherine De Castro true false 2017-02-10 EEN A comprehensive photophysical characterization of a bis-naphthalene derivative, L, was carried out in acetonitrile, using UV–Vis absorption, steady-state and time-resolved emission spectroscopy. It was found that in the 250–400 nm region, the absorption spectra showed two bands with maxima at ~ 220 nm and ~ 292 nm whereas the emission spectrum showed a band settled between 300 and 550 nm. A detailed time-resolved investigation (in the ps and ns time domain) showed that the fluorescence decay of L in dichloromethane was bi-exponential indicative of the presence of a ground-state equilibrium involving two species: monomeric (absorption of a single naphthalene unit) and dimeric. Upon addition of Cu2 +, Zn2 +, Cd2 + or Hg2 + metal cations in acetonitrile a quenching of the fluorescence emission was observed. From time-resolved data, it is shown that the fluorescence contribution of the species with the longest decay time was sensitive to the explored metal ions. Journal Article Inorganic Chemistry Communications 47 27 32 1387-7003 Naphthalene; Metals; Fluorescence quenching; Time-resolved fluorescence; Dimer 31 12 2014 2014-12-31 10.1016/j.inoche.2014.07.007 http://www.scopus.com/inward/record.url?eid=2-s2.0-84904575592&amp;partnerID=MN8TOARS COLLEGE NANME Engineering COLLEGE CODE EEN Swansea University 2017-04-07T11:48:30.7902281 2017-02-10T15:24:54.6166915 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised C.S. De Castro 1 J. Sérgio Seixas De Melo 2 A. Fernández-Lodeiro 3 C. Núñez 4 C. Lodeiro 5 Catherine De Castro 0000-0003-0649-3427 6
title Spectroscopic and photophysical studies of a naphthalene-based emissive probe for metal cations
spellingShingle Spectroscopic and photophysical studies of a naphthalene-based emissive probe for metal cations
Catherine De Castro
title_short Spectroscopic and photophysical studies of a naphthalene-based emissive probe for metal cations
title_full Spectroscopic and photophysical studies of a naphthalene-based emissive probe for metal cations
title_fullStr Spectroscopic and photophysical studies of a naphthalene-based emissive probe for metal cations
title_full_unstemmed Spectroscopic and photophysical studies of a naphthalene-based emissive probe for metal cations
title_sort Spectroscopic and photophysical studies of a naphthalene-based emissive probe for metal cations
author_id_str_mv 9523c09d78056932bb9b6959b559323e
author_id_fullname_str_mv 9523c09d78056932bb9b6959b559323e_***_Catherine De Castro
author Catherine De Castro
author2 C.S. De Castro
J. Sérgio Seixas De Melo
A. Fernández-Lodeiro
C. Núñez
C. Lodeiro
Catherine De Castro
format Journal article
container_title Inorganic Chemistry Communications
container_volume 47
container_start_page 27
publishDate 2014
institution Swansea University
issn 1387-7003
doi_str_mv 10.1016/j.inoche.2014.07.007
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
url http://www.scopus.com/inward/record.url?eid=2-s2.0-84904575592&amp;partnerID=MN8TOARS
document_store_str 0
active_str 0
description A comprehensive photophysical characterization of a bis-naphthalene derivative, L, was carried out in acetonitrile, using UV–Vis absorption, steady-state and time-resolved emission spectroscopy. It was found that in the 250–400 nm region, the absorption spectra showed two bands with maxima at ~ 220 nm and ~ 292 nm whereas the emission spectrum showed a band settled between 300 and 550 nm. A detailed time-resolved investigation (in the ps and ns time domain) showed that the fluorescence decay of L in dichloromethane was bi-exponential indicative of the presence of a ground-state equilibrium involving two species: monomeric (absorption of a single naphthalene unit) and dimeric. Upon addition of Cu2 +, Zn2 +, Cd2 + or Hg2 + metal cations in acetonitrile a quenching of the fluorescence emission was observed. From time-resolved data, it is shown that the fluorescence contribution of the species with the longest decay time was sensitive to the explored metal ions.
published_date 2014-12-31T03:39:03Z
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score 11.012947

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