Classical and novel ylide systems in organometallic chemistry

Hubert Schmidbaur

Research output: Contribution to journalArticlepeer-review

58 Scopus citations


Ylide-based organometallic compounds have become an active research topic in several academic and industrial institutions. After a short literature account this article reflects the recent progress made in the author’s laboratory, the main attention being focussed on the chemistry of phosphorus ylides with bulky substituents, of unstrained or strained cyclic ylides, and of polyfunctional ylidic systems. Ylide complexes of a series of main group and transition metals have been obtained and characterized by spectroscopic and x-ray techniques. The examples of representative molecules range from volatile magnesium and mercury phosphoniummethylides via titanium(lll) and -(TV) metallocycles to gold(I) macrocycles. In combination with the formally related diphosphinomethanide ligand, ylides formvery stable mono and binuclear products with symmetrical structures. The phospha-metallocycles of these species are related to allyl-metal as well as to metallocyclobutane systems.

Original languageEnglish
Pages (from-to)19-25
Number of pages7
JournalPure and Applied Chemistry
Issue number1
StatePublished - 1 Jan 1978
Externally publishedYes


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