abstract
A heterotetranuclear Na2Eu2 complex with uncommon photo-luminescence properties is reported. The complex exhibits good emission efficiency at ambient temperature, coupled with strong temperature dependence of the emission intensity and lifetime in the 273-333 K range, all of which are key features for non-contact luminescence-based thermometers capable of sensing and imaging temperatures in the physiological range.
keywords
HETEROMETALLIC COORDINATION POLYMERS; ORGANIC FRAMEWORKS; LANTHANIDE; EUROPIUM(III); EMISSION; IONS; THERMOMETER; MAGNETISM; SILICA; NA(I)
subject category
Chemistry
authors
Bruno, SM; Ananias, D; Paz, FAA; Pillinger, M; Valente, AA; Carlos, LD; Goncalves, IS
our authors
Groups
1 - Inorganic Functional Nanomaterials and Organic-Inorganic Hybrids
4 - Biorefineries, Biobased Materials and Recycling
Projects
Centre for Research in Ceramics and Composite Materials - CICECO (LA0011: 2013-2014) (PEst-C/CTM/LA0011/2013)
Use of molecular containers to modify metallocene-based catalysts (PTDC/QEQ-SUP/1906/2012)
acknowledgements
This work was partly financed by FEDER (Fundo Europeu de Desenvolvimento Regional) through COMPETE (Programa Operacional Factores de Competitividade) and by national funds through the FCT (Fundacao para a Ciencia e a Tecnologia) within the project CICECO - FCOMP-01-0124-FEDER-037271 (FCT ref. PEst-C/CTM/LA0011/2013) and FCOMP-01-0124-FEDER-029779 (FCT ref. PTDC/QEQ-SUP/1906/2012). The FCT is gratefully acknowledged for financial support towards the purchase of the single-crystal diffractometer and for a post-doctoral grant to S.M.B. (SFRH/BPD/46473/2008).