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.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2007
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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.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
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