Author Archives: timothybarendt

In collaboration with research teams at Diamond (Siligardi) and Durham (Pal), we measure strong circular dichroism and circularly polarised luminescence in single crystals of a perylene diimide macrocycle. Angew. Chem. Int. Ed. 2026, e20567

Denis, Oussama and Tim visited B23 at Diamond Light Source to perform some circular dichroism measurements on the group’s latest samples. Thank you to our collaborators Giuliano Siligardi and Tibi Gianga for hosting us!

In which we investigate…1. The impact of different sources of chirality on chiroptical properties: Commun. Chem. 2026 doi.org/10.1038/s42004-026-01904-z2. Conformation-dependent excimer population by ultrafast spectroscopy: Chem. Sci. 2026 doi.org/10.1039/D5SC09512C…with our collaborators at Durham and UEA.

A chiral and configurationally stable bis-perylene diimide macrocycle exhibits switchable circular dichroism and multiphoton circularly polarized luminescence.Chem. Eur. J., 2025 doi.org/10.1002/chem.202501734New work with our fantastic collaborators in Sheffield, UCL and Durham.

Congratulations to Denis for winning a poster prize at the RSC Organic Chemistry Midlands Meeting at the University of Nottingham.

1. The study of a homochiral perylene diimide dimer for sensing chiral anions.Chem. Eur. J., 2025, e202501270Work by Denis and the group’s previous MSci and MRes students Lucy and Jamie. 2. We team up with the Jupp & Chen groups at Birmingham to quantify the association between a Lewis acid and a Lewis base inContinue reading “April 25: New papers”

A helical macrocycle that exhibits three-way switching of its chiroptical properties (+/−/off) in solution.Angew. Chem. Int. Ed. 2025, e202501122New work from Denis and in collaboration with Martijn Zwijnenburg and Rob Pal.

Many congratulations to Jamie who has been awarded his Master’s by research after submitting a thesis into the aggregation of perylene diimides. Well done Jamie and see you for the Summer Graduation in 2025!

Well done Sam on passing your PhD viva! And thank you to Jochen Brandt and Neil Champness for examining.

Studying the perylene diimide dimer in the Pink Box using two-dimensional electronic spectroscopy. Angew. Chem. Int. Ed. 2024, e202407242New collaborative work with Steve Meech and Giovanni Bressan at UEA.