First Example of Cyclodimerisation of a Phospha-alkyne to a 1,3-Diphosphacyclobutadiene. Syntheses of complexes of the Type 5-C5H5)4-(t-BuCP)2>> (R = H or Me; M = Co, Rh, or Ir): Crystal and Molecular Structure of η5-Pentamethylcyclopentadienyl-2,4-di-t-butyl-1,3-...

Article abstract of DOI:10.1039/c39860000737

Displacement of ethylene from 5-C5R5)(C2H4)2>, (R = H, M = Co or Rh; R = Me, M = Co, Rh, or Ir) by treatment with t-BuCP affords complexes containing the novel 2,4-di-t-butyl-1,3-diphosphacyclobutadiene ring.

Full text of DOI:10.1039/c39860000737

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