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1. Distinct Bimetallic Cooperativity Among Water Reduction Catalysts Containing [Co III Co III ], [Ni II Ni II ], and [Zn II Zn II ] Cores

   https://doi.org/10.1002/chem.202104426  

   Morgan, Fredricka ; Schaugaard, Richard ; Anderson, Dennis ; Schlegel, H. Bernhard ; Verani, Cláudio N. ( March 2022 , Chemistry – A European Journal)

   Three binuclear species [LCo^III₂(μ‐Pz)₂](ClO₄)₃(1), [LNi^II₂(CH₃OH)₂Cl₂]ClO₄(2), and [LZn^II₂Cl₂]PF₆(3) supported by the deprotonated form of the ligand 2,6‐bis[bis(2‐pyridylmethyl) amino‐methyl]‐4‐methylphenol were synthesized, structurally characterized as solids and in solution, and had their electrochemical and spectroscopic behavior established. Species1–3had their water reduction ability studied aiming to interrogate the possible cooperative catalytic activity between two neighboring metal centers. Species1and2reduced H₂O to H₂effectively at an applied potential of −1.6 V_Ag/AgCl, yielding turnover numbers of 2,820 and 2,290, respectively, after 30 minutes. Species3lacked activity and was used as a negative control to eliminate the possibility of ligand‐based catalysis. Pre‐ and post‐catalytic data gave evidence of the molecular nature of the process within the timeframe of the experiments. Species1showed structural, rather than electronic cooperativity, while species2displayed no obvious cooperativity. DFT methods complemented the experimental results determining plausible mechanisms.

    

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2. Probing Magnetic Excitations in Co II Single-Molecule Magnets by Inelastic Neutron Scattering: Probing Magnetic Excitations in Co II Single-Molecule Magnets by Inelastic Neutron Scattering

   https://doi.org/10.1002/ejic.201801088  

   Stavretis, Shelby E. ; Cheng, Yongqiang ; Daemen, Luke L. ; Brown, Craig M. ; Moseley, Duncan H. ; Bill, Eckhard ; Atanasov, Mihail ; Ramirez-Cuesta, Anibal J. ; Neese, Frank ; Xue, Zi-Ling ( February 2019 , European Journal of Inorganic Chemistry)
3. Slow magnetic relaxation in a {Co II CoIII2} complex containing a high magnetic anisotropy trigonal bipyramidal Co II centre

   https://doi.org/10.1039/C8DT01997E  

   Collet, Alexandra ; Craig, Gavin A. ; Heras Ojea, María José ; Bhaskaran, Lakshmi ; Wilson, Claire ; Hill, Stephen ; Murrie, Mark ( January 2018 , Dalton Transactions)

   Incorporation of a trigonal bipyramidal Co^IIcentre in {Co^IICoIII2} leads to a large, easy-plane magnetic anisotropy and slow magnetic relaxation.

    

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4. Charge transfer and slow magnetic relaxation in a series of cyano-bridged FeIII4MII2 (M = Fe II , Co II , Ni II ) molecules

   https://doi.org/10.1039/c8qi01245h  

   Wang, Jin-Hua ; Vignesh, Kuduva R. ; Zhao, Jia ; Li, Zhao-Yang ; Dunbar, Kim R. ( February 2019 , Inorganic Chemistry Frontiers)

   The synthesis, single-crystal structures and magnetic properties of three new cyano-bridged complexes [FeIII4MII2] (M = Fe II , Co II , Ni II ) are reported. Electronic absorption spectroscopy reveals the occurrence of intervalence charge transfer for [FeIII4FeII2]. Field-induced slow magnetic relaxation behavior is exhibited for [FeIII4CoII2] and [FeIII4NiII2] which originates from the ferromagnetic interactions between Fe III and M II spin centers of the square. 

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5. Formation of Co(II), Ni(II), Zn(II) complexes of alternative metal binding heptapeptides and nitrilotriacetic acid: Discovering new potential affinity tags

   https://doi.org/10.1016/j.ijms.2021.116554  

   Flores, Amber A. ; Falokun, Oladapo S. ; Ilesanmi, Ayobami B. ; Arredondo, Anna V. ; Truong, Linh ; Fuentes, Nayeli ; Spezia, Riccardo ; Angel, Laurence A. ( May 2021 , International Journal of Mass Spectrometry)

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