The ‘bottom-up’ molecular approach can bring many powerful advantages to the study of ultra-small nanoscale materials of various kinds, and this area of ‘molecular nanoscience’ is therefore a rapidly growing field. In the nanomagnetism arena, molecular advantages have been absolutely crucial in the study of single-molecule magnets (SMMs), individual molecules that function as nanoscale magnets. They have greatly assisted the synthesis and structural characterization of numerous SMMs, and they have led to discovery of new quantum physics phenomena important to new 21<sup>st</sup> century technologies. In our work, this has included exchange-biased quantum tunneling of the magnetization vector, and quantum superposition/entanglement states, among others. Our giant (~4 nm) SMMs have also bridged the gap between the ‘top-down’ world of traditional magnetic nanoparticles and the ‘bottom-up’ world of molecular nanomagnets. In more recent work we have been developing controlled ways to form supramolecular oligomers of 2 or more weakly-linked SMMs to study the quantum properties more deeply, and for the first time in solution. In addition, we have very recently extended the molecular approach to other interesting materials and have been targeting molecular clusters that can be considered ‘molecular nanoparticles’ of certain metal oxides, such as cerium(IV) dioxide, and mixed-metal oxides with the perovskite structure. An overview of the above materials will be presented.

<b>Award Address</b> (ACS Award in Inorganic Chemistry sponsored by ACS). Molecular chemistry as a ‘bottom-up’ route to nanoscale magnetic materials

2019 Spring National Meeting

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Award Address (ACS Award in Inorganic Chemistry sponsored by ACS). Molecular chemistry as a ‘bottom-up’ route to nanoscale magnetic materials