Recently (1) the rate data for the generalized nucleophilic displacement reaction were reviewed.

Hard and soft acids and bases

The use of conductivity measurements in organic solvents for the characterisation of coordination compounds

Nanotechnology is expected to open new avenues to fight and prevent disease using atomic scale tailoring of materials. Among the most promising nanomaterials with antibacterial properties are metallic nanoparticles, which exhibit increased chemical activity due to their large surface to volume ratios and crystallographic surface structure. The study of bactericidal nanomaterials is particularly timely considering the recent increase of new resistant strains of bacteria to the most potent antibiotics. This has promoted research in the well known activity of silver ions and silver-based compounds, including silver nanoparticles. The present work studies the effect of silver nanoparticles in the range of 1-100 nm on Gram-negative bacteria using high angle annular dark field (HAADF) scanning transmission electron microscopy (STEM). Our results indicate that the bactericidal properties of the nanoparticles are size dependent, since the only nanoparticles that present a direct interaction with the bacteria preferentially have a diameter of approximately 1-10 nm.

https://iopscience.iop.org/article/10.1088/0957-4484/16/10/059/pdf

The bactericidal effect of silver nanoparticles

The ability of platinum and gold catalysts to effect powerful atom-economic transformations has led to a marked increase in their utilization. The quite remarkable correlation of their catalytic behavior with the available structural data, coordination chemistry, and organometallic reactivity patterns, including relativistic effects, allows the underlying principles of catalytic carbophilic activation by π acids to be formulated. The spectrum of reactivity extends beyond their utility as catalytic and benign alternatives to conventional stoichiometric π acids. The resulting reactivity profile allows this entire field of catalysis to be rationalized, and brings together the apparently disparate electrophilic metal carbene and nonclassical carbocation explanations. The advances in coupling, cycloisomerization, and structural reorganization—from the design of new transformations to the improvement to known reactions—are highlighted in this Review. The application of platinum- and gold-catalyzed transformations in natural product synthesis is also discussed.

Catalytic Carbophilic Activation: Catalysis by Platinum and Gold π Acids

Transition-metal-catalyzed addition of heteroatom-hydrogen bonds to alkynes.

The relative affinities of ligand atoms for acceptor molecules and ions

IT has long been realized that the canonical form (Ia) may contribute significantly to the structure of the dithiocarbamate residue in its complex compounds, M(S2CNR
2)n, where M is a metal atom and n its valency, but no physical or chemical evidence for this has yet been advanced.

Electronic Structures of Dithiocarbamates and Xanthates

55. The relative affinities of co-ordinating atoms for silver ion. Part II. Nitrogen, phosphorus, and arsenic

Use of the Infra-Red Spectrum to distinguish Bridging from Terminal Thiocyanato-S-Groups in Co-ordination Compounds

J. Chatt

Papers

The relative affinities of ligand atoms for acceptor molecules and ions

Electronic Structures of Dithiocarbamates and Xanthates

55. The relative affinities of co-ordinating atoms for silver ion. Part II. Nitrogen, phosphorus, and arsenic

Use of the Infra-Red Spectrum to distinguish Bridging from Terminal Thiocyanato-S-Groups in Co-ordination Compounds

176. Complexes of acetylenes with platinum(II). Part I. Alkynes