(1,5-Cyclooctadiene) (1,3,5-cyclooctatriene) ruthenium

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Structural formula
Structure of (η4-1,5-cyclooctadiene) (η6-1,3,5-cyclooctatriene) ruthenium
General
Surname (1,5-Cyclooctadiene) (1,3,5-cyclooctatriene) ruthenium
other names
  • Ruthenium (COD) (COT)
  • Ru (COD) (COT)
Molecular formula C 16 H 20 Ru
External identifiers / databases
CAS number 91947-90-9
Wikidata Q19257382
properties
Molar mass 313.4 g mol −1
safety instructions
GHS labeling of hazardous substances
02 - Highly / extremely flammable

danger

H and P phrases H: 228
P: 210
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

4 -1,5-cyclooctadiene) (η 6 -1,3,5-cyclooctatriene) ruthenium is an organometallic ruthenium compound .

history

The first preparation of (η 4 -1,5-cyclooctadiene) (η 6 -1,3,5-cyclooctatriene) ruthenium, the first known ruthenium (0) -olefin complex, succeeded Ernst Otto Fischer in 1963. Fischer succeeded in the synthesis in low yield due to the reaction of ruthenium (III) chloride hydrate with 1,5-cyclooctadiene and 1,3,5-cyclooctatriene with reduction by a Grignard reagent . By choice of zinc for the reduction of the chloride the yield increases considerably.

Reactions

The complex is extremely reactive and the olefin ligands can easily be replaced by a number of other ligands such as phosphines , carbon monoxide or amines .

Individual evidence

  1. a b Data sheet (1,5-Cyclooctadiene) (1,3,5-cyclooctatriene) ruthenium from Sigma-Aldrich , accessed on March 23, 2018 ( PDF ).
  2. Ernst Otto Fischer, Jörn Müller: Metal π complexes of ruthenium and osmium with 6- and 8-membered cyclic oligoolefins. In: Chemical Reports . 96, 1963, pp. 3217-3222, doi : 10.1002 / cber.19630961217 .
  3. Paolo Pertici, Giovanni Vitulli, Lido Porri: Improved synthesis of cyclo-olefin complexes of ruthenium via metallic zinc reduction. In: Journal of the Chemical Society, Chemical Communications . 1975, p. 846a, doi : 10.1039 / C3975000846A .