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Pentamethylcyclopentadienyl ruthenium(III) vs hexamethylbenzene ruthenium(II) in sulfur-centered reactivity of their thioether-thiolate and allied complexes.

Article Abstract:

The influence of the electronic difference of (HMB)Ru(III) and Cp*Ru(III) moieties on the manner in which their [eta.sup.3]-tpdt ligand functions as a dithiolate ligand to metal fragments from compounds of Ru(II)/Ru(III) and groups [(HMB)[Ru.sup.II]-(eta.3.)-tpdt and HN(CH2Ch2(S.sup.-))2} is described. Although both complexes behave as dithiolate chelates in bridging mode, dihomonuclear derivatives are formed with Ru fragments of like oxidation state, whereas trihomonuclear complexes derive from interactions with Ru complexes of different metal oxidation states.

Author: Richard Yee Cheong Shin, Lai Yoong Goh
Publisher: American Chemical Society
Publication Name: Accounts of Chemical Research
Subject: Science and technology
ISSN: 0001-4842
Year: 2006
Singapore, Ruthenium, Electric properties, Chemical synthesis, Properties

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Ligand-modulated palladium-catalyzed aerobic alcohol oxidations

Article Abstract:

The discovery and investigation of the ligand-modulated Pd-catalyzed aerobic alcohol oxidations is presented. The project evolved from a empirical discovery that (-)-sparteine, in combination with Pd(super II) salts, facilitates the aerobic oxidative kinetic resolution of secondary alcohols to an in-depth physical organic investigation that has provided key insights into how new, more effective catalysts can be designed.

Author: Sigman, Matthew S., Jensen, David R.
Publisher: American Chemical Society
Publication Name: Accounts of Chemical Research
Subject: Science and technology
ISSN: 0001-4842
Year: 2006
Alcohols, Chemical properties

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Coordination assemblies from a Pd (II)-cornered square complex

Article Abstract:

The simple combination of the square planer geometry (90 degree coordination angle) of palladium with pyridine-based bridging ligands gives rise to the quantitative self-assembly of nanosized, discrete organic frameworks. The self-assembled cages that dominate over previous organic receptors in their molecular recognition ability are emphasized.

Author: Fujita, Makoto, Tominaga, Masahide, Hori, Akiko, Therrien, Bruno
Publisher: American Chemical Society
Publication Name: Accounts of Chemical Research
Subject: Science and technology
ISSN: 0001-4842
Year: 2005
Industrial Organic Chemicals, Cyclic Crude and Intermediate Manufacturing, Pyridine, Chemistry, Analytic, Quantitative chemical analysis, Structure

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Subjects list: Analysis, Oxidation-reduction reaction, Oxidation-reduction reactions, Palladium
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