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Gas Sorption and Luminescence Properties of a terbium(III)-phosphine Oxide Coordination Material With Two-Dimensional Pore Topology

Ilich A Ibarra, Travis W Hesterberg, Bradley J Holliday, Vincent M Lynch, Simon M Humphrey

Dalton Trans. 2012 Jul 14;41(26):8003-9.

PMID: 22450857

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 CO(2) BET surface area of 1187 m(2) g(-1) and shows the highest reported uptake of both O(2) and H(2) 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 OH(2) 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.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP12036418 Terbium(III) oxide Terbium(III) oxide 12036-41-8 Price
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