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1. Unique Dimerization Topology and Countercation Binding Modes in 12‐Metallacrown‐4 Compounds

   https://doi.org/10.1002/ejic.202200439  

   Salerno, Elvin V. ; Foley, Collin M. ; Marzaroli, Vittoria ; Schneider, Bernadette L. ; Sharin, Max D. ; Kampf, Jeff W. ; Marchiò, Luciano ; Zeller, Matthias ; Guillot, Régis ; Mallah, Talal ; et al ( September 2022 , European Journal of Inorganic Chemistry)

   Seven dimeric metallacrowns (MC) based on Ln[12‐MC_M(III)N(shi)‐4], where Ln^III=Dy, Ho, Yb, or Y, M^III=Mn or Ga, and shi³⁻is salicylhydroximate, have been synthesized and characterized by single‐crystal X‐ray diffraction, and for the dysprosium‐manganese dimers, the magnetic properties have been measured. In each dimer two Ln[12‐MC_M(III)N(shi)‐4] units are linked by four bridging dicarboxylate anions (isophthalate, trimesate, dinicotinate, or 2,2′‐dithiodibenzoate). Three different countercations (sodium, gallium(III), or pyridinium) were used to maintain charge balance of the dimer. While pyridinium does not bind to the dimer, the choice of the dicarboxylate dictates where the countercations Na⁺or Ga^IIIbind. With isophthalate and trimesate, the sodium ion binds to the central MC cavity opposite of the Ln^III, and with dinicotinate the sodium or gallium(III) ions bind to the pyridyl nitrogen of the dinicotinate. All three Dy₂Mn₈dimers exhibit an out‐of‐phase magnetic susceptibility signal consistent with a shallow barrier to magnetization relaxation.

    

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2. Supramolecular Assembly of Uridine Monophosphate (UMP) and Thymidine Monophosphate (TMP) with a Dinuclear Copper(II) Receptor

   https://doi.org/10.1021/acsomega.7b01293  

   Rhaman, Md Mhahabubur ; Powell, Douglas R. ; Hossain, Md. Alamgir ( November 2017 , ACS Omega)
3. Effect of vapor phase ethylenediamine crosslinking of matrimid on alcohol vapor sorption and diffusion

   https://doi.org/10.1002/app.44771  

   Stanford, John P. ; Pfromm, Peter H. ; Rezac, Mary E. ( March 2017 , Journal of Applied Polymer Science)

   This work examines the sorption, diffusion, and polymer relaxation behavior for water and C1‐C7 alcohol vapors at 30  °C in ethylenediamine vapor‐phase crosslinked Matrimid. Ethylenediamine is sufficiently volatile that crosslinking can occur by exposing the polymeric film to saturated vapor, in contrast to more conventional means of dissolving the crosslinker in a solvent and immersing the polymeric film in the solution. The vapor‐phase exposure method avoids the use of additional solvent and undesired solvent‐induced swelling. Sorption isotherms demonstrate that water and C1‐C5 alcohols do not appreciably differ for unmodified and crosslinked Matrimid; however, an approximate 90% reduction in sorption was determined for hexanol and heptanol. A minor impact on diffusion coefficients for water, methanol, and ethanol was observed, while those of propanol and butanol were reduced over an order of magnitude. Relaxation kinetics were similarly unchanged for water and C1‐C3 alcohols, while being significantly reduced for butanol and higher alcohols. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci.2017,134, 44771.

    

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4. Dynamics and Mechanisms of Mn(II), Co(II), Ni(II), Zn(II), and Cd(II) Sorption onto Green Rust Sulfate

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   Alam, Khondaker_M N ; Elzinga, Evert J ( June 2023 , Environmental Science & Technology)
5. A New Reaction for Improved Calibration of EPR Rapid-Freeze Quench Times: Kinetics of Ethylene Diamine Tetraacetate (EDTA) Transfer from Calcium(II) to Copper(II)

   https://doi.org/10.1007/s00723-021-01448-6  

   Schroeter, Abigail L. ; Yang, Hao ; James, Christopher D. ; Hoffman, Brian M. ; Doan, Peter E. ( November 2021 , Applied Magnetic Resonance)