A new series of Zr(IV), V(IV), Ru(III), and Cd(II) complexes with the ligand N-((5-hydroxy-4-oxo-4H-pyran-3-yl)methylene)-2-(p-tolylamino)acetohydrazide (H2L) have been prepared. FT-IR, 1H-NMR, electronic spectra, powder X-ray, thermal behavior methods were applied to elucidate structural composition compounds. Geometry optimization for all synthesized compounds was conducted using Gaussian09 p...

The front cover picture illustrates chiral iron catalysts featuring tetrahedral and octahedral stereocenters, which are reviewed in the accompanying article for their use enantioselective organic transformations. configurational stability of these complexes can be achieved by multidentate ligands cyclopentadienyl anions structures. These key geometrical features recalled here graphical represen...

A new class of SERRS-active macromolecule designed to protect silver nanoparticle surfaces against salt corrosion whilst retaining colloidal stability of the particles is reported.

A micromachined test structure was used to measure the etch rate of silicon in potassium hydroxide (KOH) as a function of surface orientation, which quantifies etchant anisotropy. By adding multidentate ligands, containing hydroxyl groups, to etchant solutions, the effects of these ligands on etch rate were determined. Bidentate ligands 1,2-ethanediol, 1,3-propanediol, and 1,4-butanediol each s...

Calixarene-Ti complexes were grafted onto SiO2 (0.18-0.24 Ti nm-2) to form isolated and accessible Ti centers persistently coordinated to multidentate calixarene ligands. Grafted Ti-tert-butylcalix[4]arenes gave Ti K-edge absorption spectra with pre-edge features at 4968.6-4968.9 eV, independently of Ti surface density and of their use in epoxidation catalysis. The structure and reactivity of g...

DNA is the primary intracellular target of anticancer drugs due to the interaction between small molecules and DNA, which cause DNA damage in cancer cells, blocking the division of cancer cells and resulting in cell death. Of these studies, the interaction of transition metal complexes containing multidentate aromatic ligands, with DNA has gained much attention. This is due to their possible ap...

Ptiliidae is a group of distinctly miniaturized staphylinoid beetles with scarce fossil record. Here, we report new ptiliid genus and species, Crenossidium slipinskii Li, Newton Cai gen. et sp. nov ., from mid-Cretaceous amber northern Myanmar. can be attributed to the subfamily Nossidiinae based on hind wing morphology, which has also been confirmed through phylogenetic analyses. differs other...