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   https://doi.org/10.1021/acs.accounts.1c00006  

   Sun, Yifan; Terrones, Mauricio; Schaak, Raymond E. (March 2021, Accounts of Chemical Research)
2. Laser cooling of transition-metal atoms

   https://doi.org/10.1103/PhysRevA.102.053327  

   Eustice, Scott; Cassella, Kayleigh; Stamper-Kurn, Dan (November 2020, Physical Review A)

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3. Mixing the transition metals in transition metal diborides

   https://doi.org/10.1016/j.commatsci.2024.113646  

   Tang, Xiaochuan; Thompson, Gregory B; Weinberger, Christopher R (February 2025, Computational Materials Science)
4. Iron: Life’s primeval transition metal

   https://doi.org/10.1073/pnas.2318692121  

   Johnson, Jena E; Present, Theodore M; Valentine, Joan Selverstone (September 2024, Proceedings of the National Academy of Sciences)

   Darensbourg, Marcetta (Ed.)

   Modern life requires many different metal ions, which enable diverse biochemical functions. It is commonly assumed that metal ions’ environmental availabilities controlled the evolution of early life. We argue that evolution can only explore the chemistry that life encounters, and fortuitous chemical interactions between metal ions and biological compounds can only be selected for if they first occur sufficiently frequently. We calculated maximal transition metal ion concentrations in the ancient ocean, determining that the amounts of biologically important transition metal ions were orders of magnitude lower than ferrous iron. Under such conditions, primitive bioligands would predominantly interact with Fe(II). While interactions with other metals in certain environments may have provided evolutionary opportunities, the biochemical capacities of Fe(II), Fe–S clusters, or the plentiful magnesium and calcium could have satisfied all functions needed by early life. Primitive organisms could have used Fe(II) exclusively for their transition metal ion requirements. 

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5. Transition metal-mediated reductive coupling of diazoesters

   https://doi.org/10.1039/C9CC03771C  

   Grass, Amanda; Stoian, Sebastian A.; Lord, Richard L.; Groysman, Stanislav (July 2019, Chemical Communications)

   The first transition metal mediated reductive coupling of diazoesters through the terminal nitrogens is reported. The resulting tetrazene-bridged bis(diazenylacetate) serves as a novel dinucleating ligand to iron(III). DFT calculations suggest that the reductive coupling takes place via a κ 2 intermediate, which induces significant radical character on the terminal nitrogen. 

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