Jump to ContentJump to Main Navigation
Show Summary Details
More options …

Zeitschrift für Naturforschung C

A Journal of Biosciences

Editor-in-Chief: Seibel, Jürgen

Editorial Board: Aigner , Achim / Boland, Wilhelm / Bornscheuer, Uwe / Hoffmann, Klaus

12 Issues per year


IMPACT FACTOR 2017: 0.882
5-year IMPACT FACTOR: 0.912

CiteScore 2017: 0.92

SCImago Journal Rank (SJR) 2017: 0.288
Source Normalized Impact per Paper (SNIP) 2017: 0.448

Online
ISSN
1865-7125
See all formats and pricing
More options …
Volume 36, Issue 11-12

Issues

Aspartic Acid-Aspartate and Glutamic Acid-Glutamate Hydrogen Bonds Having Great Proton Polarizability — IR Investigations

Pushti Prakash Rastogi
  • Physikalisch Chemisches Institut der Universität München, Theresienstr. 41, D-8000 München 2, Bundesrepublik Deutschland
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Georg Zundel
  • Physikalisch Chemisches Institut der Universität München, Theresienstr. 41, D-8000 München 2, Bundesrepublik Deutschland
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2014-06-02 | DOI: https://doi.org/10.1515/znc-1981-11-1210

Abstract

α-Amino and α-carboxylate group protected aspartate (Z-asp-OMe) and glutamate (Z-glu-OBZl) solutions in CH2Cl2 are studied as function of the addition of the respective salts by IR spectroscopy. The antisymmetrical stretching vibration of the -CO2c- groups shifts to the position where v C = O of the acid groups is observed, indicating that both anions in the acid-anion complexes are strongly influenced by the proton. With the formation of these complexes a continuum arises preferentially in the region 1600-900 cm-1 demonstrating that the OH · · · O--O · · · HO bonds formed show great proton polarizability. These hydrogen bonds are short and the proton potential is probably a broad flat well. The degree of the formation of these hydrogen bonds is determined. Finally, it is discussed that positive charge can easily be translocated via such hydrogen bonds in protein molecules.

Keywords: Proton Polarizability; Hydrogen Bonds; Protein Molecules

About the article

Received: 1981-07-15

Published Online: 2014-06-02

Published in Print: 1981-12-01


Citation Information: Zeitschrift für Naturforschung C, Volume 36, Issue 11-12, Pages 961–963, ISSN (Online) 1865-7125, ISSN (Print) 0939-5075, DOI: https://doi.org/10.1515/znc-1981-11-1210.

Export Citation

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

Comments (0)

Please log in or register to comment.
Log in