Synthesis of axially substituted tetrapyrazinoporphyrazinato metal complexes for optical limiting and study of their photophysical properties

Article Abstract:

The synthesis, characterization, and various photophysical properties of axially substituted tetratyrazinotetraazaporphyrinatotitanium(IV) oxide, tetrapyrazinotetraazaporphyrinatovanadium (IV) oxide, tetrapyrazinotetraazaporphyrinatozirconium(IV) dihydroxide are reported. The introduction of nitrogen atoms in the condensed rings of the tetrapyrrolic macrocycles together with the presence of axial substituents lead to an improvement of the excited state absorption properties in comparison to phthalocyanines.

Uranium-radium-vanadium ores, Vanadium, Optical properties, Titanium

---

Oxygen sites and network coordination in sodium germanate glasses and crystals: High-resolution oxygen-17 and sodium-23 NMR

Article Abstract:

High resolution (super 17)O results, including triple-quantum magic angle spinning NMR (3QMAS) on a series of crystalline model compounds that allow the definition of ranges of chemical shifts corresponding to oxygens bonded to various coordinations of Ge, is presented. The results as well as comparison of molar volumes of glasses and high-temperature liquids, suggest the possibility of significant temperature effects on liquid structure.

All Other Basic Inorganic Chemical Manufacturing, Potassium & Sodium Compounds, Sodium & Sodium Compounds, Germanium, Magnetic properties, Sodium compounds

---

Solid-state (super 91)Zr NMR of Bis(cyclopentadienyl)diclorozirconium(IV)

Article Abstract:

The use of signal enhancement schemes such as bis(cyclopentadienyl)diclorozirconium(IV) DFS/QCPMG, QCPMG for the acquisition of (super 91) ZR NMR spectra permits the study of an organometallic Cp2ZrCl2 as well as inorganic material with a large quadrupolar interaction, a ceramic zirconium oxide NMR rotor.

Organometallic chemistry, Solids

Similar abstracts:

• Abstracts: Electrostatic self-assembly deposition of titanate(IV) layered oxides intercalated with transition metal complexes and their electrochemical properties
• Abstracts: Vibrational echoes: Dephasing, rephasing, and the stability of classical trajectories. Spontaneous relaxation in generalized oscillator models with glassy dynamics
• Abstracts: Hydrophobicity at small and large length scales. Third and fourth virial coefficients and the equation of state of hard prolate spherocylinders
• Abstracts: Rotational diffusion of organic solutes in surfactant-block copolymer micelles: Role of electrostatic interactions and micelles hydration
• Abstracts: Electron donor-acceptor interactions in ethanol-CO2 mixtures: An ab initio molecular dynamics study of supercritical carbon dioxide

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.