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Issue 30, 2007
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[(CH3)2NH(CH2)2NH(CH3)2][(UO2)2F2(HPO4)2]: a new organically templated layered uranium phosphate fluoride - synthesis, structure, characterization, and ion-exchange reactions

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Abstract

A new organically templated layered uranium phosphate fluoride, [(CH3)2NH(CH2)2NH(CH3)2][(UO2)2F2(HPO4)2] has been synthesized by hydrothermal reaction of UO3, H3PO4, HF, and (CH3)2NCH2CH2N(CH3)2 at 140 °C. [(CH3)2NH(CH2)2NH(CH3)2][(UO2)2F2(HPO4)2] has a layered crystal structure consisting of seven-coordinated UO5F2 pentagonal bipyramids and four-coordinated HPO4 tetrahedra. Each anionic layer containing three-, four-, and six-membered rings is separated by [(CH3)2NH(CH2)2NH(CH3)2]2+ cations. The [(CH3)2NH(CH2)2NH(CH3)2]2+ cations may be readily exchanged with the M2+ ions (M = Ba, Sr and Ca) in water to give high crystalline AE(UO2)2(PO4)2·6H2O (AE = Ca, Sr, Ba).

Graphical abstract: [(CH3)2NH(CH2)2NH(CH3)2][(UO2)2F2(HPO4)2]: a new organically templated layered uranium phosphate fluoride - synthesis, structure, characterization, and ion-exchange reactions

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Publication details

The article was received on 16 Apr 2007, accepted on 24 May 2007 and first published on 20 Jun 2007


Article type: Paper
DOI: 10.1039/B705759H
Citation: Dalton Trans., 2007, 3325-3329
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    [(CH3)2NH(CH2)2NH(CH3)2][(UO2)2F2(HPO4)2]: a new organically templated layered uranium phosphate fluoride - synthesis, structure, characterization, and ion-exchange reactions

    K. Min Ok, M. B. Doran and D. O'Hare, Dalton Trans., 2007, 3325
    DOI: 10.1039/B705759H

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