[(CH3)2NH(CH2)2NH(CH3)2][(UO2)2F2(HPO4)2]：一种新型有机模板层状铀磷酸盐氟化物——合成、结构、表征及离子交换反应

[(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.

作者信息

Min Ok Kang, Doran Michael B, O'Hare Dermot

机构信息

Chemistry Research Laboratory, University of Oxford, Oxford, UK.

出版信息

Dalton Trans. 2007 Aug 14(30):3325-9. doi: 10.1039/b705759h. Epub 2007 Jun 20.

DOI:10.1039/b705759h

PMID:17893779

Abstract

A new organically templated layered uranium phosphate fluoride, [(CH(3))(2)NH(CH(2))(2)NH(CH(3))(2)][(UO(2))(2)F(2)(HPO(4))(2)] has been synthesized by hydrothermal reaction of UO(3), H(3)PO(4), HF, and (CH(3))(2)NCH(2)CH(2)N(CH(3))(2) at 140 degrees C. [(CH(3))(2)NH(CH(2))(2)NH(CH(3))(2)][(UO(2))(2)F(2)(HPO(4))(2)] has a layered crystal structure consisting of seven-coordinated UO(5)F(2) pentagonal bipyramids and four-coordinated HPO(4) tetrahedra. Each anionic layer containing three-, four-, and six-membered rings is separated by (CH(3))(2)NH(CH(2))(2)NH(CH(3))(2) cations. The (CH(3))(2)NH(CH(2))(2)NH(CH(3))(2) cations may be readily exchanged with the M(2+) ions (M = Ba, Sr and Ca) in water to give high crystalline AE(UO(2))(2)(PO(4))(2).6H(2)O (AE = Ca, Sr, Ba).

摘要

一种新型的有机模板层状铀磷酸盐氟化物，[(CH(3))(2)NH(CH(2))(2)NH(CH(3))(2)][(UO(2))(2)F(2)(HPO(4))(2)]，通过UO(3)、H(3)PO(4)、HF和(CH(3))(2)NCH(2)CH(2)N(CH(3))(2)在140℃下的水热反应合成。[(CH(3))(2)NH(CH(2))(2)NH(CH(3))(2)][(UO(2))(2)F(2)(HPO(4))(2)]具有层状晶体结构，由七配位的UO(5)F(2)五角双锥体和四配位的HPO(4)四面体组成。每个包含三元、四元和六元环的阴离子层被(CH(3))(2)NH(CH(2))(2)NH(CH(3))(2)阳离子隔开。(CH(3))(2)NH(CH(2))(2)NH(CH(3))(2)阳离子可在水中与M(2+)离子（M = Ba、Sr和Ca）轻松交换，得到高结晶度的AE(UO(2))(2)(PO(4))(2).6H(2)O（AE = Ca、Sr、Ba）。