Cragg, Peter

Evtugyn, Vladimir

Nazarova, Aastasia

Osin, Yuriy

Padnya, Pavel

Stoikov, Ivan

Yakimova, Luidmila

English

Monosubstituted pillar[5]arenes containing a phosphonate fragment were successfully obtained in good yields. It was found that the introduction of bulky fragments containing tetra-coordinated pentavalent phosphorus atoms prevents self-Assembly of monosubstituted pillar[5]arenes and the formation of supramolecular polymers. Pillar[5]arenes with phosphonate and 1-Aminophosphonate substituents demonstrated recognition towards Na +, K +, Cs + and Pb 2+. Their ability to form complexes with these cations was evaluated by UV spectroscopy. Dynamic light scattering (DLS) revealed the formation of aggregates with K +, Cs + and Pb 2+. It was established that the substituent at the α-carbon atom of the aminophosphonate fragment played a significant role in Pb 2+ binding. DLS and transmission electron microscopy revealed that Pb 2+-induced aggregation formed particles with a monodisperse distribution of 0.02-0.23 and a hydrodynamic diameter of 58-178 nm. </p

University of Brighton Research Portal

Monosubstituted pillar[5]arene functionalized with (amino)phosphonate fragments are “smart” building blocks for constructing nanosized structures with some s- and p-metal cations in the organic phase

https://cris.brighton.ac.uk/ws/files/6736958/NJC_2019_PURE_version.pdf

Monosubstituted pillar[5]arene functionalized with (amino)phosphonate fragments are “smart” building blocks for constructing nanosized structures with some s- and p-metal cations in the organic phase

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University of Brighton Research Portal