Reported herein is the coordination of rhenium complexes to tetrazine ligand in [ReCl(CO)(TzPy)] [1] (TzPy = 3-(2-pyridyl)-1,2,4,5-tetrazine) and the rates of addition of different dienophiles to the tetrazine. Tetrazine coordiation lowers the ΔS contribution to ΔG for iEDDA addition.

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http://dx.doi.org/10.1039/d0cc03805aDOI Listing

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