75406-80-3Relevant academic research and scientific papers
Cerium(IV) phenylphosphonates and para-substituted phenylphosphonates: preparation and characterization
Melánová,Bene?,Svoboda,Zima,Trchová,Vl?ek,Almonasy
, p. 331 - 339 (2017)
Cerium(IV) phenylphosphonates and 4-substituted phenylphosphonates were prepared by reaction of a cerium(IV) salt with corresponding acids (phenylphosphonic, 4-carboxyphenylphosphonic, 4-sulfamoylphenylphosphonic, 1,4-benzenediphosphonic, 1,4-biphenyldiphosphonic and 4-sulfophenylphosphonic acid) and characterized by elemental analysis, energy-dispersive X-ray analysis, TGA, powder X-ray diffraction and infrared spectroscopy. Three different cerium phenylphosphonates can be prepared in dependence on the reaction conditions. On the other hand, only one compound is formed in each 4-substituted phosphonate system regardless the variation of the reaction conditions. All three phenylphosphonates, 4-carboxyphenylphosphonate and 4-sulfamoylphenylphosphonate are layered with the organic parts pointed below and above the plane of the metal phosphonate layers, with the functional groups placed at the end of the organic part. 4-Sulfophenylphosphonate, 1,4-benzenediphosphonate and 4,4′-biphenyldiphosphonate form pillared structures. Cerium 4-carboxyphenylphosphonate is able to intercalate aliphatic amines due to the presence of the free carboxylic groups in its interlayer space.
