Calorimetric titration of complexation of light lanthanoid nitrates with N-benzylaza-16-crown-5 and 15,15-dimethyl-16-crown-5 in acetonitrile: enhanced selectivity for Pr3+
Article Abstract:
Research was conducted to examine the molecular design of crown ethers. Calorimetric titrations were carried out in anhydrous acetonitrile at 25 degrees C to yield the complex stability constants (Ks) and the thermodynamic parameters for the stoichiometric 1:1 complexation of light lanthanoid(III) nitrates with N-benzylaza-16crown-5 and 15,15-dimethyl-16-crown-5. Results suggest that the introduction of a nondonating sidearm to C- and N-pivot 16-crown-5 substantially changes not only the binding constant but also the relative cation selectivity.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
In situ investigation of acetonitrile adsorption on [Al.sub.2][O.sub.3]-coated Ca[F.sub.2] using sum-frequency spectroscopy
Article Abstract:
Sum-frequency spectroscopy (SFS) is used to investigate the interface between a model catalyst support ([Al.sub.2][O.sub.3]-coated Ca[F.sub.2]) and liquid consisting of neat acetonitrile and acetonitrile in ethanol. The lack of curvature in the isotherm has indicated the lack of affinity for the surface by acetonitrile in ethanol.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
User Contributions:
Comment about this article or add new information about this topic:
Adsorption of acridine orange at a [C.sub.8,18]/water/acetonitrile interface
Article Abstract:
The characterization of the molecular dynamics (MD) of acridine orange (3,6-dimethylaminoacridine) at a chromatographic interface by using fully atomistic simulations is discussed. Results reveal that the transport properties of acridine were primarily governed by the solvent distribution above the functionalized surface.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2007
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Full configuration interaction computer simulation study of the thermodynamic and kinetic stability of hydrated dielectrons
- Abstracts: Comparison of the supramolecular structures of two glyco lipids with chiral and nonchiral methyl-branched alkyl chains from natural sources
- Abstracts: Gas-phase methylation of [60]fullerene. QSPR modeling of solubility of polyaromatic hydrocarbons and fullerene in 1-octanol and n-heptane
- Abstracts: Modeling of folding and unfolding mechanisms in alanine-based [alpha]-helical polypeptides. Tracing the critical loci of binary fluid mixtures using molecular simulation
- Abstracts: Stabilization of platinum clusters by substitutional boron dopants in carbon supports. [pi*] Orbital system of alternating phenyl and ethynyl groups: Measurements and calculations