AUTHOR=Fondo Matilde , Escuer Albert , Herrera Juan Manuel TITLE=Editorial: Molecular Magnets JOURNAL=Frontiers in Chemistry VOLUME=7 YEAR=2019 URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2019.00229 DOI=10.3389/fchem.2019.00229 ISSN=2296-2646