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Issue 26, 2012
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Gas sorption and luminescence properties of a terbium(iii)-phosphine oxide coordination material with two-dimensional pore topology

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Abstract

The structure, stability, gas sorption properties and luminescence behaviour of a new lanthanide-phosphine oxide coordination material are reported. The polymer PCM-15 is based on Tb(III) and tris(p-carboxylated) triphenylphosphine oxide and has a 5,5-connected net topology. It exhibits an infinite three-dimensional structure that incorporates an open, two-dimensional pore structure. The material is thermally robust and remains crystalline under high vacuum at 150 °C. When desolvated, the solid has a CO2 BET surface area of 1187 m2 g−1 and shows the highest reported uptake of both O2 and H2 at 77 K and 1 bar for a lanthanide-based coordination polymer. Isolated Tb(III) centres in the as-synthesized polymer exhibit moderate photoluminescence. However, upon removal of coordinated OH2 ligands, the luminescence intensity was found to approximately double; this process was reversible. Thus, the Tb(III) centre was used as a probe to detect directly the desolvation and resolvation of the polymer.

Graphical abstract: Gas sorption and luminescence properties of a terbium(iii)-phosphine oxide coordination material with two-dimensional pore topology

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Article information


Submitted
19 Jan 2012
Accepted
03 Mar 2012
First published
08 Mar 2012

Dalton Trans., 2012,41, 8003-8009
Article type
Paper

Gas sorption and luminescence properties of a terbium(III)-phosphine oxide coordination material with two-dimensional pore topology

I. A. Ibarra, T. W. Hesterberg, B. J. Holliday, V. M. Lynch and S. M. Humphrey, Dalton Trans., 2012, 41, 8003
DOI: 10.1039/C2DT30138E

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