Signatures of pancake bonding in hydrated eumelanin.

Pavel A Abramov Oleksandr I Ivankov A Bernardus Mostert Konstantin A Motovilov

Published in: Physical chemistry chemical physics : PCCP (2023)

Pancake bonding phenomenology is applied for the first time in a bioorganic system, the pigment eumelanin, via a hydration-induced decrease of the interplanar distance down to 3.19 Å. The observation explains the long-term inconsistency between electron paramagnetic resonance and muon spin relaxation data for eumelanin.

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