Stereochemical aspects of phosphor-1,1-dithiolato metal complexes (dithiophosphates, dithiophosphinates): Coordination patterns, molecular structures and supramolecular associations—I

New trends in platinum and palladium complexes as antineoplastic agents

Pt-doped mesoporous Ti3+ self-doped TiO2 (Pt–Ti3+/TiO2) is in situ synthesized via an ionothermal route, by treating metallic Ti in an ionic liquid containing LiOAc, HOAc, and a H2PtCl6 aqueous solution under mild ionothermal conditions. Such Ti3+-enriched environment, as well as oxygen vacancies, is proven to be effective for allowing the in situ reduction of Pt4+ ions uniformly located in the framework of the TiO2 bulk. The photocatalytic H2 evolution of Pt–Ti3+/TiO2 is significantly higher than that of the photoreduced Pt loaded on the original TiO2 and commercial P25. Such greatly enhanced activity is due to the various valence states of Pt (Ptn+, n = 0, 2, or 3), forming Pt–O bonds embedded in the framework of TiO2 and ultrafine Pt metal nanoparticles on the surface of TiO2. Such Ptn+–O bonds could act as the bridges for facilitating the photogenerated electron transfer from the bulk to the surface of TiO2 with a higher electron carrier density (3.11 × 1020 cm–3), about 2.5 times that (1.25 × 1020 cm...

Pt-Enhanced Mesoporous Ti3+/TiO2 with Rapid Bulk to Surface Electron Transfer for Photocatalytic Hydrogen Evolution.

Microvias with various diameters formed by laser ablation on a printed circuit board (PCB) were used to investigate the filling mechanism of the microvia in copper electroplating. The plating solution consisted of acid copper sulfate, polyethylene glycol (PEG), 3-mercapto-1-propanesulfonate (MPS), and chloride ions. Superfill was obtained using a specific concentration ratio of MPS to chloride ions. According to the examinations of the vias by an optical microscope (OM) for cross-sectional views, a scanning electron microscope (SEM) for top views, and by an energy dispersive spectrometer (EDS) for surface element analyses, chloride ions were verified to be a key factor in determining the superfilling behavior. They play three roles, namely, the electron bridge of Cu 2 + reduction, the anchor of suppressor (i.e., PEG + Cl - ), and the promoter of accelerator (MPS + Cl - ) in copper electroplating. The distribution of the surface coverage of the suppressor and the accelerator adsorbed along the via profile was revealed by tracing the distribution of CuCl crystals generated by synergistic interactions among MPS, Cl - , metallic copper, and Cu 2 + . Plating results indicate that the adsorptive abilities of the suppressor and the accelerator, and whether a suppressor can displace the accelerator adsorbed on the cathode are convection-dependent.

Roles of Chloride Ion in Microvia Filling by Copper Electrodeposition I. Studies Using SEM and Optical Microscope

Linear-dichroic infrared spectral analysis of Cu(I)–homocysteine complex

Copper(II) interaction and complexation with 1-[2(S)-3-mercapto-3-methylpropionyl]-L-proline (captopril)

Mono- and binuclear copper(II) complexes with atenolol (HAt) can be obtained, depending on the reaction conditions. The mononuclear violet complex cation has the general formula Cu(HAt)4
2+ with an elongated octahedral geometry. The two ligands in the equatorial plane are bound in a bidentate fashion through the hydroxyl oxygen and amino nitrogen, while the other two atenolol molecules in axial position are coordinated in a monodentate way. The binuclear green complex Cu2At2Cl2, is neutral, where atenolol acts as a bidentate (O−, NH) bridging ligand. The bridge between the two Cu atoms is realized by the deprotonated oxygen of the alcohol group.

Complexes of copper(II) with the β-blocker atenolol

Absolute structure of a new paramagnetic platinum(II)-creatinine complex with a columnar structure

EPR studies on bis(diisopropyldithiophosphato)copper(II) magnetically diluted in the corresponding palladium(II) and platinum(II) single crystals and crystal and molecular structure of bis(diisopropyldithiophosphato)palladium(II) host lattice

Georgi Gochev

Papers

Copper(II) interaction and complexation with 1-[2(S)-3-mercapto-3-methylpropionyl]-L-proline (captopril)

Complexes of copper(II) with the β-blocker atenolol

Absolute structure of a new paramagnetic platinum(II)-creatinine complex with a columnar structure

EPR studies on bis(diisopropyldithiophosphato)copper(II) magnetically diluted in the corresponding palladium(II) and platinum(II) single crystals and crystal and molecular structure of bis(diisopropyldithiophosphato)palladium(II) host lattice

X-ray and 57Fe mössbauer study on a Fe(III) complex of 2-acetyl-1,3-indandione