Solution Structures and Dynamics of Ru4(μ-H)4(CO)12-x(Lx: (x = 1–4, L = P(OEt)3, P(OEt)3; x = 1, 2, L = ASph3) Derivatives by VT Multinuclear NMR Spectroscopy. X-ray Structure Determination of Ru4(μ-H)4(CO)10(P(OEt)3)2

Silvio Aime, Mauro Botta, Roberto Gobetto, Luciano Milone, Domenico Osella, Robert Gellert, Edward Rosenberg

Research output: Contribution to journalArticlepeer-review

Abstract

The addition of the catalyst (FeCp(CO)2)2 to the solution reactions of Ru4(μ-H)4(co)12 with L (L = P(OEt)3, PPh3, AsPh3) affords the substitution derivatives Ru4(μ-H)4(CO)12-xLx(x = 1–4, L = P(OEt)3, PPh3; x = 1, 2, L = AsPh3) with good selectivity modulated by the carbonyl to ligand ratio and in satisfactory yield. Multinuclear variable temperature NMR studies at different temperatures show that the tri- and tetrasubstituted products are each obtained in only one isomeric form while for L = P(OEt)3 the monosubstituted derivative exists as two isomers in solution. The disubstituted derivatives form only one isomer for L = P(OEt)3, whereas two isomers are observed for L = PPh3, AsPh3. The stereochemical nonrigidity of the title compounds has been investigated, and correlations between solid-state and solution structures are discussed.

Original languageEnglish
Pages (from-to)3693-3703
Number of pages11
JournalOrganometallics
Volume14
Issue number8
DOIs
Publication statusPublished - Aug 1995
Externally publishedYes

Fingerprint

Dive into the research topics of 'Solution Structures and Dynamics of Ru4(μ-H)4(CO)12-x(Lx: (x = 1–4, L = P(OEt)3, P(OEt)3; x = 1, 2, L = ASph3) Derivatives by VT Multinuclear NMR Spectroscopy. X-ray Structure Determination of Ru4(μ-H)4(CO)10(P(OEt)3)2'. Together they form a unique fingerprint.

Cite this