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Creators/Authors contains: "Petersen, Jeffrey L."

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  1. Free, publicly-accessible full text available May 16, 2023
  2. Photolysis of ( Me PMP Me ) 2 ZrBn 2 ( Me PMP Me = 3,5-dimethyl-2-(2-pyridyl)pyrrolide) in the presence of diphenylacetylene yields the first η 4 -cyclobutadienyl zirconium complex, ( Me PMP Me ) 2 Zr(η 4 -C 4 Ph 4 ), through formal [2+2] cycloaddition of two alkynes at a putative low-valent zirconium intermediate. This unique reactivity expands the scope of alkyne coupling reactions at low-valent zirconium centers that traditionally produce zirconacyclopentadienes.