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Akerson, V. (Ed.)The COVID-19 pandemic has accelerated a transition to flexible remote and hybrid work arrangements. This shift presents a challenge to colleges and universities as they prepare the next generation of STEM professionals in the knowledge economy. This case study of student experiential learning during the time of critical change from the Spring of 2020 through Spring of 2022 focused on how students, typically aged 20–23, contended with their professional development amidst changing patterns in workplace community, culture, and activities. We expected that students would struggle to achieve a greater understanding of situated workplace community practices; however, the data problematised these general assumptions. The findings highlight the variation in student experiences around these themes and are discussed in the context of scaffolding of student internships in intrapersonal, interpersonal, and cognitive domains.more » « less
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Bakhoda, Abolghasem; Jiang, Quan; Badiei, Yosra M.; Bertke, Jeffery A.; Cundari, Thomas R.; Warren, Timothy H. (, Angewandte Chemie International Edition)Abstract Undirected C(sp3)−H functionalization reactions often follow site‐selectivity patterns that mirror the corresponding C−H bond dissociation energies (BDEs). This often results in the functionalization of weaker tertiary C−H bonds in the presence of stronger secondary and primary bonds. An important, contemporary challenge is the development of catalyst systems capable of selectively functionalizing stronger primary and secondary C−H bonds over tertiary and benzylic C−H sites. Herein, we report a Cu catalyst that exhibits a high degree of primary and secondary over tertiary C−H bond selectivity in the amidation of linear and cyclic hydrocarbons with aroyl azides ArC(O)N3. Mechanistic and DFT studies indicate that C−H amidation involves H‐atom abstraction from R‐H substrates by nitrene intermediates [Cu](κ2‐N,O‐NC(O)Ar) to provide carbon‐based radicals R.and copper(II)amide intermediates [CuII]‐NHC(O)Ar that subsequently capture radicals R.to form products R‐NHC(O)Ar. These studies reveal important catalyst features required to achieve primary and secondary C−H amidation selectivity in the absence of directing groups.more » « less
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