Robuta

https://webbook.nist.gov/cgi/cbook.cgi?ID=C49852406&Units=SI&Mask=20 1,5-Cyclooctadiyne https://webbook.nist.gov/cgi/cbook.cgi?Str3View=C49852406&Type=JSmol Structure for 1,5-Cyclooctadiyne structure