Why does a reduction in hydrogen bonding lead to an increase in viscosity for the 1-butyl-2,3-dimethyl-imidazolium-based ionic liquids?

Article Abstract:

The gas phase structure and electronic properties of ion pairs formed from 1-butyl-2,3-dimethyl-imiazolium ([[[C.sub.4][C.sub.1]min].sup.+]) and [Cl.sup.-] are examined in order to understand the counter-intuitive behavior of melting point and viscosity. The reduction in entropy has led to greater ordering within the liquid raising the melting point and increasing viscosity.

Analysis, Hydrogen bonding, Hydrogen bonds, Ionic solutions, Azo compounds, Structure, Atomic properties

---

Surfactant charge effects on the location, vibrational spectra, and relaxation dynamics of cyanoferrates in reverse micelles

Article Abstract:

Vibrational energy relaxation measurements were performed on a series of cyanoferrates in cationic, anionic, and nonionic reverse micelles. The results obtained were compared to dynamics in bulk aqueous solution and are interpreted in terms of the location of the cyanoferrate probes within the reverse micelle cavity.

Science & research, Research, Micelles, Aqueous solution reactions, Ferrites (Magnetic materials)

---

Similar abstracts:

• Abstracts: Infrared spectroscopy of competitive interactions between liquid crystals, metal salts, and dimethyl methylphosphonate at surfaces
• Abstracts: Salting-out effects in aqueous ionic liquid solutions: Cloud-point temperature shifts. On the critical temperature, normal boiling point, and vapor pressure of ionic liquids
• Abstracts: Melting and freezing behaviors of prototype ionic liquids, 1-butyl-3-methylimidazolium bromide and its chloride, studied by using a nano-Watt differential scanning

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