In this Chapter, we provide an overview of how noncovalent interactions, determined by the chemical structure of π-conjugated molecules and polymers, govern essential aspects of the electronic, optical, and mechanical characteristics of organic semiconductors. We begin by describing general aspects of materials design, including the wide variety of chemistries exploited to control the electronic and optical properties of these materials. We then discuss explicit examples of how the study of noncovalent interactions can provide deeper chemical insights that can improve the design of new generations of organic electronic materials.2

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In article number 2010916, Srikanth Pedireddy, Pascal E. Saikaly, and co‐workers report a facile synthesis strategy of single‐atom catalysts (SACs) at room temperature by harnessing the extracellular electron transfer capability of Geobacter sulfurreducens. This strategy can be successfully extended for the synthesis of various transition metal SACs by merely altering the metal precursors. Without further heat treatment, the dried catalysts exhibit excellent electrocatalytic activity for oxygen and hydrogen evolution reactions.

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