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Updated: Jun 28, 2026

Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals
Published on: May 29, 2018
Stacking of double bonds for photochemical [2+2] cycloaddition reactions in the solid state
Mangayarkarasi Nagarathinam1, Abdul Malik Puthan Peedikakkal, Jagadese J Vittal
1Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore.
Abstract:
trans-1,2-Bis(4-pyridyl)ethylene (bpe), containing a C=C bond, has been extensively studied for solid-state photochemical [2+2] cycloaddition reactions, in discrete molecular and metal complexes, hydrogen bonded and coordination polymeric structures. The challenges in orienting a pair or more of bpe molecules in the solid-state using crystal engineering principles, and their photochemical behaviour and implications, based on Schmidt's postulates, are discussed.
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