C-P Bond Cleavage Through Hydrogenation in Ruthenium Complexes Supported by P,N Ligands.

The reactivity of ruthenium hydride complexes supported by 2-((di--butylphosphaneyl)methyl)pyridine, and 2-(di--butylphosphaneyl)pyridine, , was explored. The reaction of {Ru(COD)Cl} with in the presence of base and 10 bar of H gave the expected complex [Ru(L1)(H)Cl], , while the same reaction with gave [Ru(L2)(P(H)Bu)(H)Cl], , that results from the cleavage of a C-P bond. We were able to establish that under the reaction conditions the first species formed is [Ru(L2)(H)Cl], , and that this species decomposes to give complex and is in equilibrium with [Ru(L)Cl], .

Optimized crop distributions in Egypt increase crop productivity and nutritional standards, reducing the irrigation water requirement.

Feeding a growing population with healthy food while preserving the natural ecosystem's resources is a critical challenge of our century. In Egypt, the increasing demand for food commodities and the intensive consumption of freshwater resources by the agricultural sector is hindering the food system capability to achieve sustainable food and nutrition security. The Egyptian government has recently prioritized the improvement of dietary supply through the efficient use of the locally available natural resources.

Detection of helical water flows in sub-nanometer channels.

Nanoscale flows of liquids can be revealed in various biological processes and underlie a wide range of nanofluidic applications. Though the integral characteristics of these systems, such as permeability and effective diffusion coefficient, can be measured in experiments, the behaviour of the flows within nanochannels is still a matter of speculation. Herein, we used a combination of quadrupolar solid-state NMR spectroscopy, computer simulation, and dynamic vapour sorption measurements to analyse water diffusion inside peptide nanochannels.

Valorization of Crab Shells as Potential Sorbent Materials for CO Capture.

This study delves into the potential advantage of utilizing crab shells as sustainable solid adsorbents for CO capture, offering an environmentally friendly alternative to conventional porous adsorbents, such as zeolites, silicas, metal-organic frameworks (MOFs), and porous carbons. The investigation focuses on crab shell waste, which exhibits inherent natural porosity and N-bearing groups, making them promising candidates for CO physisorption and chemisorption applications. Selective deproteinization and demineralization treatments were used to enhance textural properties while preserving the natural porous structure of the crab shells.

Unravelling the structure of CO in silica adsorbents: an NMR and computational perspective.

This comprehensive review describes recent advancements in the use of solid-state NMR-assisted methods and computational modeling strategies to unravel gas adsorption mechanisms and CO speciation in porous CO-adsorbent silica materials at the atomic scale. This work provides new perspectives for the innovative modifications of these materials rendering them more amenable to the use of advanced NMR methods.