Photostable, Oxygen‐Sensitive Optical Probe Based on a Homonuclear Terbium(III) Complex Covalently Bound to Functionalized Polydimethylsiloxane | Zendy

Gaspar Rafael D. L. | Zendy; Monteiro Jorge H. S. K. | Zendy; Raimundo Ivo M. | Zendy; Mazali Italo O. | Zendy; Sigoli Fernando A. | Zendy

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Photostable, Oxygen‐Sensitive Optical Probe Based on a Homonuclear Terbium(III) Complex Covalently Bound to Functionalized Polydimethylsiloxane

Author(s) -

Gaspar Rafael D. L.,

Monteiro Jorge H. S. K.,

Raimundo Ivo M.,

Mazali Italo O.,

Sigoli Fernando A.

Publication year - 2015

Publication title -

chempluschem

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.801

H-Index - 61

ISSN - 2192-6506

DOI - 10.1002/cplu.201500296

Subject(s) - homonuclear molecule , terbium , polydimethylsiloxane , covalent bond , chemistry , photochemistry , oxygen , combinatorial chemistry , nanotechnology , materials science , organic chemistry , molecule , ion

A new oxygen‐sensitive optical probe based on the [Tb(3,5‐dcba) 3 ]⋅1/2 H 2 O (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, I 0 /I 100 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 % N 2 to 100 % O 2 with response time of 8.5 s (N 2 →O 2 ) and recovery time of 49.5 s (O 2 →N 2 ).

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