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- W1991161189 abstract "Structural limitations in small cyclic hydrocarbons are a longstanding challenge to chemistry, leading to molecules with unusual geometric parameters and reactivity. For example, incorporation of CCCC or CCCC arrangements, which are normally linear in open-chain compounds, into small carbocyclic rings results in enormous ring strain as a result of the angle deformation. Nevertheless, such uncommon structures have been realized by complexation of zirconocene fragments with butadiynes and butatrienes, giving five-membered metallacyclocumulenes and metallacyclopentynes. The metal atom is essential for these molecules but complicates the simplified description because of internal interactions of the metals with the multiple bonds." @default.
- W1991161189 created "2016-06-24" @default.
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- W1991161189 date "2004-07-26" @default.
- W1991161189 modified "2023-10-18" @default.
- W1991161189 title "Stable Cyclopentynes—Made by Metals!?" @default.
- W1991161189 doi "https://doi.org/10.1002/anie.200401761" @default.
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