Abstract
The hydrothermal reaction of uranyl nitrate with 1,4-benzenedicarboxylic acid (H 2bdc) in the presence of strontium or potassium hydroxides and nitrates afford the formation of two new uranyl hybrid materials featuring extensive uranyl-strontium or uranyl-potassium interactions with [(UO 2) 3(µ 3-O)(µ 2-OH) 3] + as the sub-building unit. Sr 1.5[(UO 2) 12(O) 3(OH) 13(bdc) 4]⋅6H 2O (1) contains one-dimensional (1D) uranyl oxohydroxyl ribbons made of trinuclear pentagonal bipyramidal uranyl units. The ribbons are linked together via uranyl-strontium interactions to form 2D inorganic domains which are further connected through µ 4-bdc anions forming a 3D hybrid structure. This is the first reported uranyl-strontium interaction in extended hybrid solid with the shortest Sr-O −yl bond length of 2.596 (8) Å. K 3[(UO 2) 12(O) 3(OH) 13(bdc) 4]⋅8H 2O (2) has a similar 3D hybrid structure built up through extensive K-O −yl interactions with the shortest K-O −yl bond length of 2.620 (6) Å. Raman spectroscopy has confirmed the presence of oxo-bridging (U−O−U) vibrations. Thermal stabilities and photoluminescent properties are reported.
Original language | English |
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Pages (from-to) | 7-12 |
Number of pages | 6 |
Journal | Chemistry Select |
Volume | 1 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jan 2016 |
Bibliographical note
Publisher Copyright:© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Keywords
- hybrid materials
- thermal properties
- uranium
- uranyl