Synthesis and fluxional behaviour of (cyclopentadienyl) and (pentamethylcyclopentadienyl)ruthenium(II) complexes with hemilabile ether-phosphines. 31P DNMR spectroscopic studies and line shape analysis

Abstract

General rightsIt is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s), other than for strictly personal, individual use, unless the work is under an open content license (like Creative Commons). Disclaimer/Complaints regulationsIf you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. Download date: 08 May 2018Inorgamca Chmuca Acfa, 215 (1994) AbstractA series of Cp*RuCI(P -0), complexes (3a-e) (Cp* = $-C,Me,) were prepared m situ by reactton of [Cp*RuCI,], (1) with the ether-phosphme ligands Ph,PCHZ-D

Behavior of (Ether−phosphine)ruthenium(II) Complexes [(η6-C6Me6)RuH(P⌒O)][BF4] Containing Reactive Ru−O and Ru−H Bonds toward Various Small Molecules and Their Application in Ring-Opening Metathesis Polymerization

“…The strength of the metal−oxygen bond in (ether−phosphine)ruthenium complexes depends on the O nucleophilicity of the ether moiety, the ring size of the cyclic ether, the number and position of the oxygen atoms in the ring, and the basicity at the ruthenium. These results were established from investigations of the fluxional behavior by VT 31 P NMR spectroscopy of octahedrally coordinated and half-sandwich ruthenium(II) complexes containing ether−phosphines as ligands …”

Hemilabile Ligands as Mechanosensitive Electrode Contacts for Molecular Electronics

“…For example, by slowly compressing (stretching) junctions fabricated with 1 with a triangular ramp at a rate of 24 nm s −1 , their conductance continuously increases (decreases) to the extent of , and similar results were obtained under sinusoidal modulation of the junction size. This absence of a clean coordination change may be of interest for the possible mechanisms of metal‐organic configuration transitions in the fluxional behaviour in solution of thienyl‐based and other weak‐link hemilabile ligands, although other factors will be of importance in solution reactions, such as solvation energies and related factors.…”

Synthesis, Crystal Structures and NMR Spectroscopic Studies on Ruthenium Complexes with Phosphanylacetal and Phosphanylthioacetal Ligands

“…The bond angles are also very similar. For example, the Cl(1)-Ru(1)-Cl (2) [14][15][16] In some examples the dioxolane showed fluxional behaviour though, to be dependent on the strength of the Ru-O bond as dictated by the co-ligands present at the ruthenium centre. At ambient temperature in CDCl 3 both the proton and carbon NMR spectra of 4 show several broad peaks.…”