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The nickel(0) complex 1 containing the extremely easily polymerizable and explosive ligand butadiyne is crystalline and stable at room temperature under inert gas. Complex 1 and the analogous mononuclear complex can be interconverted. Their synthesis opens up new approaches to the commercial use of butadiyne, which is a byproduct of acetylene production (n = 2,3).
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Bonrath et al. (1988) studied this question.
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