CaltechAUTHORS
  A Caltech Library Service

Ultrafast Electron Diffraction Reveals Dark Structures of the Biological Chromophore Indole

Park, Sang Tae and Gahlmann, Andreas and He, Yonggang and Feenstra, Jonathan S. and Zewail, Ahmed H. (2008) Ultrafast Electron Diffraction Reveals Dark Structures of the Biological Chromophore Indole. Angewandte Chemie International Edition, 47 (49). pp. 9496-9499. ISSN 1433-7851. https://resolver.caltech.edu/CaltechAUTHORS:PARac08

[img]
Preview
PDF - Supplemental Material
See Usage Policy.

1771Kb

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:PARac08

Abstract

With UED, as detailed in the experimental section, we are able to determine both ground- and excited-state structures and obtain the temporal behavior for excitation of indole at 267 nm. For the ground-state structure (see Scheme SI1 in the Supporting Information), the experimental and the theoretical molecular scattering function, sM(s), together with the radial distributions, f(r), are shown in Figure 1. The refined structural parameters are listed in Table SI1 in the Supporting Information, together with values obtained from density functional theory (DFT) calculations. The satisfactory agreement between experiment and theory gives the refined structural parameters, which were found to have discrepancies at most within 0.007 Å and 0.18° for bond lengths and angles, respectively.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1002/anie.200804152DOIArticle
http://onlinelibrary.wiley.com/doi/10.1002/anie.200804152/abstractPublisherArticle
Additional Information:© 2008 WILEY-VCH. Received: August 22, 2008. Published online: November 5, 2008. This work was supported by the National Science Foundation and the Air Force Office of Scientific Research in the Gordon and Betty Moore Center of Physical Biology at Caltech. We would like to thank Prof. Kenneth W. Hedberg for help in designing the air-heated inlet system. We would also like to thank Prof. Andrzej L. Sobolewski for providing the starting geometries of the relevant species for our data analysis. Supporting information for this article is available on the WWW under http://dx.doi.org/10.1002/anie.200804152.
Funders:
Funding AgencyGrant Number
NSFUNSPECIFIED
Air Force Office of Scientific Research (AFOSR)UNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
Subject Keywords:amino acids; biological photodamage; biological structures; electron diffraction; intersystem crossing
Issue or Number:49
Record Number:CaltechAUTHORS:PARac08
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:PARac08
Official Citation:Park, S., Gahlmann, A., He, Y., Feenstra, Jonathan S. and Zewail, Ahmed H. (2008), Ultrafast Electron Diffraction Reveals Dark Structures of the Biological Chromophore Indole. Angewandte Chemie International Edition, 47: 9496–9499. doi:10.1002/anie.200804152
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:12876
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:07 Jan 2009 19:02
Last Modified:03 Oct 2019 00:32

Repository Staff Only: item control page