Full Paper
non lamp as the steady-state excitation source and a 60 W pulsed
xenon lamp as the time-resolved excitation source (operating at a
pulse frequency of 100 Hz). The emission was detected by a Hama-
matsu R928P PMT photomultiplier tube for the visible range and a
Hamamatsu R5509-72 photomultiplier operating at 193 K for the
NIR range. The excitation spectra were corrected for the emission
profile of the xenon lamp, whereas the emission spectra were cor-
rected for the detector response curve. All measurements were per-
formed at a step size of 0.1 nm. For the Gd-psa and Nd-psa samples,
the time-resolved measurements were performed with a Contin-
uum® Surelite I laser (450 mJ at 1064 nm) operating at a repetition
rate of 10 Hz and with the third harmonic (355 nm) as the excitation
source and the detectors mentioned above. For Pr-psa, the time-
resolved measurements were performed with a Continuum® Sure-
lite I-10 Nd:YAG-pumped OPO Plus laser system tuned to 466 nm
and the visible photomultiplier detector mentioned above. The
temperature of the measurements for EuTb-psa was controlled with
an ARS closed-cycle cryostat in the temperature range 13.5–313.5 K
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errors were added.
[
[
Catalytic study: A typical procedure for the cyanosilylation of
benzaldehyde was as follows: Into a Pyrex-glass screw-cap vial, the
catalyst (10 mg, 5 mmol-%) was placed with dichloromethane
(
(
DCM, 1 mL) as the solvent at room temperature. After that, BA
0.026 mL) and TMSCN (0.05 mL) in a 1:1.5 molar ratio were added.
The reaction mixture was stirred constantly at 800 rpm under a
N atmosphere. The conversion of BA and the product yield were
2
periodically determined by GC analysis. When the reaction was
complete, the catalyst was separated through the centrifugation of
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FTIR Spectroscopy: The FTIR spectra (Figure S18) were recorded
–
1
with a Nicolet Protégé 460 spectrometer in the ν˜ = 4000–225 cm
–
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Acknowledgments
This work was supported by the Consejo Nacional de Investiga-
ciones Científicas y Técnicas (PIP CONICET 112-201101- 00912),
ANPCyT PICT-2012-1994 and Universidad Nacional de San Luis
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PROICO 2-1612). G. E. G. acknowledges a CONICET PhD fellow-
ship. R. V. D. and A. M. K. thank the Hercules Foundation (project
AUGE/09/024 “Advanced Luminescence Setup”) for funding.
A. M. and E. G. P. thank the Spanish Ministry of Economy and
Competitiveness (MINECO) project MAT2013-45460-R, and Mad-
rid S2013/MIT-2740 (PHAMA_2.0). G. E. N. is a member of CIC-
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Keywords: Metal–organic frameworks · Lanthanides ·
Luminescence · Temperature sensing · Cyanosilylation
Eur. J. Inorg. Chem. 2016, 1577–1588
www.eurjic.org
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