Anna speaks at the 13th Italian Conference on Supramolecular Chemistry

4th Year PhD student Anna Aletti travelled from (surprisingly) sunny Dublin to the (exceedingly) sunny south coast of Sardinia on behalf of the group and attended the 13th Italian Conference on Supramolecular Chemistry held from the 18th to the 21st June 2017. Anna, who works on the design of anion receptors and anion-directed materials, gave an oral presentation of her work on interlocked [2]-catenanes based on the BTP motif and their anion binding properties, which was published last year in Angewandte Chemie with Dr Joseph Byrne (now at U. Bern with Prof. Martin Albrecht) and being continued in collaboration with Eoin McCarney, also a 4th year PhD student in the group.

She showcased the groups work and described the self-templated formation of [2]-catenanes from RCM of dimers formed from allyl-appended BTP ligands, which in their macrocyclic and catenated forms showed anion recognition properties.

The conference, organised by Claudia Caltagirone at the University of Cagliari and held on the beautiful Sardinian coast in Santa Margherita di Pula, brought together European and Italian researchers (of which the TG have a number both in the ranks and graduated from the group) from across Italy and some of those researching further afield. Anna, who studied at Università degli Studi di Pavia before arriving to the TG group, was reunited with a number of her former professors including Valeria Amendola and Piersandro Pallavicini, and continues to enjoy the interesting programme of talks from PIs and students of the Italian supramolecular community. (and the weather!)

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Group Photo with all delegates (taken from supramol2017 website).

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New Paper published in Dalton Transactions

Graphical Abstract

Structure of the tetrameric [Zn4(L)4]8+ cation investigated in the work.

Congratulations to Dawn, Chris, Bjørn and Joe for their recent paper in Dalton Transactions titled “A folded [2 × 2] metallo-supramolecular grid from a bis-tridentate (1,2,3-triazol-4-yl)-picolinamide (tzpa) ligand“. In this work, a new flexible bis-tridentate donor ligand containing 1,2,3-triazolyl-picolinamide (tzpa) binding sites was developed, which contained structural elements from two of the group favorites 2,6-dipicolinamide (dpa) and 2,6-bis-(1,2,3-triazolyl)pyridine (btp). The new ligand was then used in the formation of a tetranuclear grid with Zn(II) or Fe(II) ions, which was probed with X-ray diffraction, NMR, UV-Visible spectroscopy and mass spectrometry. It also involved a productive collaboration with Dr Manuel Reuther and Dr John O’Brien from the NMR Spectroscopy Facility in TCD, who provided help in understanding the solution behavior of the material using the T1 spin-lattice relaxation parameter in 1H NMR spectroscopy.