Hydrazone-Based Adaptive Materials

Ivan Aprahamian, Dartmouth College, EEUU

Wednesday 28 January 2026, 11 AM

ICMAB - Sala d'Actes Carles Miravitlles and ONLINE (Register here)

Abstract

For the past few years we have been developing structurally simple, easy to make, modular, and tunable hydrazone-based functional materials. This presentation will deal with our recent advances with these systems, with an emphasis on newly developed photochromic compounds that exhibit many interesting properties, including emission ON/OFF toggling in solution and the solid-state. The use of these photochromic compounds in reversible multi-color liquid crystal applications (see below), hand-held 3D volumetric displays, energy storage, and anion pumping, will be discussed.

Short bio

Professor Aprahamian received all his degrees (BSc in 1998, MS in 2000, and PhD in 2005) from the Hebrew University of Jerusalem, Israel. His doctoral research focused on NMR spectroscopic studies of alkali metal reduced polycyclic aromatic hydrocarbons. He then carried out postdoctoral research in (Nobel Laureate) Professor Sir Fraser Stoddart's group at UCLA, where he focused on the synthesis of switchable and highly ordered interlocked molecules in the form of bistable [n]rotaxanes. Dr. Aprahamian joined the faculty at Dartmouth College in August 2008, and was promoted to Associate Professor in 2014, and Full Professor in 2019. In 2025 he finished his three-year term as the Chair of his department. His research group focuses on using structurally simple, modular, and tunable hydrazone-based building blocks in the development of adaptive functional materials. Dr. Aprahamian is the recipient of several honors, including an NSF CAREER Award and the 2016 Cram-Lehn-Pedersen Prize in Supramolecular Chemistry. He is also a Humboldt Fellow, and a Fellow of the Royal Society of Chemistry.

Hosted by David Amabilino, from the SUSMOSYS group (Materials for Energy Research Line)

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