9783642401909
IR
EN-50126
انگلیسی
IR
Photophysics of Ionic Biochromophore
[Book]
/ edited by Steen Br?ndsted Nielsen, Jean Ann Wyer
Berlin, Heidelberg
: Springer Berlin Heidelberg :Imprint: Springer,
, 2013.
XIII, 230 p. 125 illus., 102 illus. in color., online resource.
(Physical Chemistry in Action,2197-4349)
Electronic
This book provides a concise overview of the photophysics and spectroscopy of biochromophore ions. The book "Photophysics of Ionic Biochromophores" summarizes important recent advances in the spectroscopy of isolated biomolecular ions in vacuo, which has within the last decade become a highly active research field. Advanced instrumental apparatus and the steady increase in more and more powerful computers have made this development possible, both for experimentalists and theoreticians. Applied techniques described here include absorption and fluorescence spectroscopy, which are excellent indicators of environmental effects and can thus shed light on the intrinsic electronic structures of ions without perturbations from e.g. water molecules, counter ions, nearby charges, and polar amino acid residues. When compared with spectra of the chromophores in their natural environment, such spectra allow to identify possible perturbations. At the same time gas-phase spectra provide important benchmarks for quantum chemistry calculations of electronically excited states. This volume focuses on biological systems from protein biochromophores, e.g. the protonated Schiff-base retinal responsible for vision, and individual aromatic amino acids to peptides and whole proteins, studied using visible, ultraviolet and vacuum ultraviolet light. Work on DNA nucleotides and strands that are amenable to mass spectrometric studies because of the negatively charged sugarphosphate backbone are also presented. DNA strands represent an example of the interplay between multiple chromophores, which is even harder to model correctly than just single chromophores due to spatially extended excited states and weak coupling terms. The experimental techniques used to measure spectra and commonly used theoretical methods are described with a discussion on limitations and advantages. The volume includes an updated status of the field and interesting future directions such as cold ion spectroscopy.
Concepts -- Introduction and new aspects -- Experimental techniques -- Theoretical Methods -- Photo-initiated Dynamics and Spectroscopy of the Deprotonated Green Fluorescent Protein Chromophore -- Fluorescence from Gas-phase Biomolecular Ions -- Spectroscopy of Ferric Heme and Protoporphyrin IX Ions in vacuo -- UV-Visible Absorption Spectroscopy of Protein Ions -- Excited-state Dynamics of Protonated Aromatic Amino Acids -- UV Photophysics of DNA and RNA Nucleotides in vacuo: Dissociation Channels, Time Scales, and Electronic Spectra -- Action Spectroscopy of Gas-phase Peptide Ions with Energetic Photons.
Physical Chemistry in Action,2197-4349
Chemistry
Spectroscopy
Bioorganic chemistry
Chemistry, Physical organic
Biochemistry
Electronic books
E-BOOK
Br?ndsted Nielsen, Steen.
Wyer, Jean Ann
SpringerLink (Online service)
ایران
9783642401893.pdf
عادی
عادی
9783642401893.pdf
متن
old catalog
e
BL
1
a
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