Related Experiment Video
Updated: Jun 9, 2026

Discovery and Synthesis Optimization of Isoreticular Al(III) Phosphonate-Based Metal-Organic Framework Compounds Using High-Throughput Methods
Published on: October 6, 2023
Synthesis, structure, and solid-state transformation studies of phosphonoacetate based hybrid compounds of uranium
Padmini Ramaswamy1, Ramanath Prabhu, Srinivasan Natarajan
1Framework Solids Laboratory, Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560 012, India.
Abstract:
Three new phosphonoacetate hybrid frameworks based on the actinide elements uranium and thorium have been synthesized. The compounds [C(4)N(2)H(14)][(UO(2))(2)(O(3)PCH(2)COO)(2)] x H(2)O, I, [C(4)N(2)H(14)][(UO(2))(2)(C(2)O(4))(O(3)PCH(2)COOH)(2)], II, and Th(H(2)O)(2)(O(3)PCH(2)COO)(C(2)O(4))(0.5) x H(2)O, III, are built up from the connectivity between the metal polyhedra and the phosphonoacetate/oxalate units. Compound II has been prepared using a solvent-free approach, by a solid state reaction at 150 degrees C. It has been shown that II can also be prepared through a room temperature mechanochemical (grinding) route. The layer arrangement in III closely resembles to that observed in I. The compounds have been characterized by powder X-ray diffraction, IR spectroscopy, thermogravimetric analysis, and fluorescence studies.
Related Concept Videos
Hybridization of Atomic Orbitals II
Nuclear Transmutation
Photoluminescence: Applications
Hybridization of Atomic Orbitals I
Other Nuclides: 31P, 19F, 15N NMR
While fluorine-19 and phosphorous-31 have high natural abundances (100%) and positive gyromagnetic ratios, nitrogen-15 has a low natural abundance and a negative gyromagnetic ratio. However, nitrogen-15 is still preferred over nitrogen-14 (which has a high...
Microbial Bioremediation of Uranium

