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Cover Feature: Molecular Solar Thermal Energy Storage Systems with Long Discharge Times Based on the Dihydroazulene/Vinylheptafulvene Couple (Eur. J. Org. Chem. 10/2019)
Author(s) -
Mogensen Josefine,
Christensen Oliver,
Kilde Martin Drøhse,
Abildgaard Martin,
Metz Lotte,
Kadziola Anders,
Jevric Martyn,
Mikkelsen Kurt V.,
Nielsen Mogens Brøndsted
Publication year - 2019
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.201900304
Subject(s) - chemistry , cover (algebra) , thermal energy storage , energy storage , thermal , solar energy , sunlight , feature (linguistics) , thermal energy , derivative (finance) , photochemistry , thermodynamics , astronomy , physics , electrical engineering , mechanical engineering , financial economics , economics , power (physics) , linguistics , philosophy , engineering
The Cover Feature shows how sunlight can convert a dihydroazulene derivative into a high‐energy vinylheptafulvene isomer, which in the dark returns to the original isomer, at the same time releasing the energy as heat. By introducing electron‐withdrawing groups (EWGs), the half‐life for the back‐reaction is significantly prolonged without compromising the energy density of the system, which is a key step towards using the couple as a molecular solar thermal energy storage system for light‐harvesting during daytime and heat release during nighttime. More information can be found in the Full Paper by M. Jevric, K. V. Mikkelsen, M. B. Nielsen et al.