PPX/PXP-type ligands (X = O and S) and their transition metal complexes: synthesis, properties and applications.

Short-bite diphosphines of the form RP-X-PR (PXP; X = O, S; R = aryl, alkyl), incorporating an oxygen or sulphur atom as bridging unit X, are widely underexplored compared to their N- and C-containing PNP- and PCP-type counterparts. However, these PXP ligands undergo an interesting phosphorotropic equilibrium with the PPX (RP(X)-PR) tautomer, which opens up a very versatile coordination chemistry. This article covers the impact of the ligand backbone in short-bite ligands on their coordination chemistry, reactivity and applications.

Support Engineering for the Stabilisation of Heterogeneous Pd P-Based Catalysts for Heck Coupling Reactions.

Herein we report the use of a supported Pd P catalyst for Heck coupling reactions. For the stabilisation of Pd P and Pd, as reference system, the silica support material was modified via phosphorus doping (0.5 and 1 wt % P).

Acute Bite Angle POP- and PSP-Type Ligands and Their Trinuclear Copper(I) Complexes: Synthesis and Photo-Luminescence Properties.

In the current work, the rational synthesis of trinuclear copper complexes, incorporating acute bite angle POP- and PSP-type ligands, is reported. The in situ formation of POP (PhP-O-PPh) or PSP (PhP-S-PPh) ligands in the presence of a copper(I) precursor gave access to various trinuclear copper complexes of the form [Cu(μ-Hal)(μ-PXP)]PF [X = O; Hal = Cl (), Br (), I () and X = S; Hal = Cl (), Br (), I ()]. Related iodide-containing complexes and clusters, such as [Cu(μ-I)(PhPI)] () and [Cu(μ-I)(μ-I)(μ-PSP)] (), could also be obtained via the variation of the reaction stoichiometry.

A Supported Palladium Phosphide Catalyst for the Wacker-Tsuji-Oxidation of Styrene.

The substitution of pure metal particles by metal phosphides in catalysis represents a promising opportunity to lower the required metal quantity in the context of a sustainable use of metal resources. Herein we show the synthesis of palladium phosphide, Pd P, supported on silica, which is tested as catalyst for the Wacker-Tsuji-oxidation of styrene to acetophenone. The synthesized catalyst is characterized by PXRD, SEM-EDX, FTIR, ICP-AES and XPS measurements.

How Research Data Management Plans Can Help in Harmonizing Open Science and Approaches in the Digital Economy.

Within this perspective article, we intend to summarise definitions and terms that are often used in the context of open science and data-driven R&D and we discuss upcoming European regulations concerning data, data sharing and handling. With this background in hand, we take a closer look at the potential connections and permeable interfaces of open science and digital economy, in which data and resulting immaterial goods can become vital pieces as tradeable items. We believe that both science and the digital economy can profit from a seamless transition and foresee that the scientific outcomes of publicly funded research can be better exploited.