Warning: Undefined array key "mm" in /www/wwwroot/www.ai-bt.com/si.php on line 10 Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /www/wwwroot/www.ai-bt.com/si.php on line 10 H(aq)+ structures in proton wires inside nanotubes.

Literature DB >> 19911820

H(aq)+ structures in proton wires inside nanotubes.

Evgenii S Stoyanov¹, Irina V Stoyanova, Fook S Tham, Christopher A Reed.

Abstract

The hydrated carborane acid H(CHB(11)I(11)).8H(2)O crystallizes in nanometer-diameter tubes of H(aq)(+) enclosed by walls of carborane anions. Three different types of H(aq)(+) clusters are found in these tubes: a symmetrical H(13)O(6)(+) ion with an unusually elongated Zundel-type H(5)O(2)(+) core, two hydrated H(7)O(3)(+) ions, and an unprecedented H(17)O(8)(+) ion having a nearly square core. All of the H(aq)(+) cations show unexpectedly longer O...O separations than in discrete H(aq)(+) ions, indicating greater delocalization of positive charge. The centrosymmetric H(aq)(+) ions are linked via short H bonds, forming a true one-dimensional proton wire.

Entities: Chemical Disease Gene

Mesh：

Substances：
Ion Channels
Protons

Year: 2009 PMID： 19911820 PMCID： PMC2787796 DOI： 10.1021/ja907708g

Source DB: PubMed Journal: J Am Chem Soc ISSN： 0002-7863 Impact factor: 15.419

13 in total

H(aq)+ structures in proton wires inside nanotubes.

1. The formation and dynamics of proton wires in channel environments.

Review 2. Voltage-gated proton channels and other proton transfer pathways.

3. Proton transport through water-filled carbon nanotubes.

4. IR spectrum of the H(5)O(2)(+) cation in the context of proton disolvates L-H(+)-L.

5. Free energy profiles for H+ conduction along hydrogen-bonded chains of water molecules.

6. Structures and spectral signatures of protonated water networks in bacteriorhodopsin.

7. Water trapped in dibenzo-18-crown-6: theoretical and spectroscopic (IR, Raman) studies.

8. The structure of the H3O+ hydronium ion in benzene.

9. The nature of the hydrated proton H(aq)+ in organic solvents.

10. Atom Pair Distribution Functions of Liquid Water at 25{degrees}C from Neutron Diffraction.

1. Myths about the proton. The nature of H+ in condensed media.

2. The structure of the hydrogen ion (H(aq)+) in water.