Interaction between Methanol and the Cl-, Br-, I-, NO3-, ClO4-, BF4-, SO3CF3- and PF6- Anions Studied by FTIR Spectroscopy.
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Anion permeation in an apical membrane chloride channel of a secretory epithelial cell
Single channel currents though apical membrane Cl channels of the secretory epithelial cell line T84 were measured to determine the anionic selectivity and concentration dependence of permeation. The current-voltage relation was rectified with single channel conductance increasing at positive potentials. At 0 mV the single channel conductance was 41 +/- 2 pS. Permeability, determined from rever...
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Rotationally resolved infrared spectra are reported for halogen atom-HF free radical complexes formed in helium nanodroplets. An effusive pyrolysis source is used to dope helium droplets with Cl, Br and I atoms, formed by thermal dissociation of Cl2, Br2 and I2. A single hydrogen fluoride molecule is then added to the droplets, resulting in the formation of the X-HF complexes of interest. Analy...
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Structure of Mixed-Anions Tris(2-pyridylmethyl)amine Mn Complex, TPAMn(η-NO3)(η-ClO4)
Mononuclear mixed-anions Mn complex of TPAMn(η-NO3)(η-ClO4), where TPA is tris(2-pyridylmethyl)amine, has been synthesized and characterized. The neutral TPAMn(η-NO3)(η-ClO4) was obtained from the reaction between Mn(NO3)2·4H2O and [H3TPA](ClO4)3 in MeOH. X-ray crystallographic structure of mononuclear TPAMn(η-NO3)(η-ClO4) complex showed a seven-coordinated geometry with a tripodal tetradentate...
متن کاملPermeation and Block of the Skeletal Muscle Chloride Channel, ClC-1, by Foreign Anions
A distinctive feature of the voltage-dependent chloride channels ClC-0 (the Torpedo electroplaque chloride channel) and ClC-1 (the major skeletal muscle chloride channel) is that chloride acts as a ligand to its own channel, regulating channel opening and so controlling the permeation of its own species. We have now studied the permeation of a number of foreign anions through ClC-1 using voltag...
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ژورنال
عنوان ژورنال: Acta Chemica Scandinavica
سال: 1997
ISSN: 0904-213X
DOI: 10.3891/acta.chem.scand.51-0270