Photostable, Oxygen-Sensitive Optical Probe Based on a Homonuclear Terbium(III) Complex Covalently Bound to Functionalized Polydimethylsiloxane
A new oxygen‐sensitive optical probe based on the [Tb(3,5‐dcba)3]⋅1/2 H2O (3,5‐dcba=3,5‐dichlorobenzoate) complex, which is chemically attached to a phosphine‐oxide‐functionalized polydimethylsiloxane is presented. The hybrid material shows green emission and transparency in the visible range. The o...
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Published in | ChemPlusChem (Weinheim, Germany) Vol. 80; no. 12; pp. 1721 - 1724 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Germany
Blackwell Publishing Ltd
01.12.2015
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Subjects | |
Online Access | Get full text |
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Summary: | A new oxygen‐sensitive optical probe based on the [Tb(3,5‐dcba)3]⋅1/2 H2O (3,5‐dcba=3,5‐dichlorobenzoate) complex, which is chemically attached to a phosphine‐oxide‐functionalized polydimethylsiloxane is presented. The hybrid material shows green emission and transparency in the visible range. The optically sensitive probe is photostable under excitation at 350 nm and shows the highest oxygen sensitivity, I0/I100 equal to 8.9 at 1 atm, among probes based on homonuclear lanthanide compounds. Furthermore its reversibility is demonstrated after several cycles ranging from 100 % N2 to 100 % O2 with response time of 8.5 s (N2→O2) and recovery time of 49.5 s (O2→N2).
Oxygen sensitive: The TbIII‐based sensor (see figure) showed green emission and transparency in the visible range. The optically sensitive probe was photostable under excitation at 350 nm and showed high oxygen sensitivity, I0/I100, equal to 8.9 at 1 atm. Also, its reversibility was demonstrated after several cycles ranging from 100 % N2 to 100 % O2 with response time of 8.5 s and recovery time of 49.5 s. |
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Bibliography: | ark:/67375/WNG-JDNHWWNB-9 FAPESP CNPq istex:FBF289C8393EDF7619C87C5722EB04130E913F2C National Institute for Advanced Analytical Science and Technology National Institute of Science and Technology in Complex Functional Materials Laboratory of Advanced Optical Spectroscopy CNPq-MCT/FAPESP ArticleID:CPLU201500296 CAPES ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 2192-6506 2192-6506 |
DOI: | 10.1002/cplu.201500296 |