English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Ultrafast primary processes of an iron-(III) azido complex in solution induced with 266 nm light.

Vennekate, H., Schwarzer, D., Torres-Alacan, J., Krahe, O., Filippou, A. C., Neese, F., et al. (2012). Ultrafast primary processes of an iron-(III) azido complex in solution induced with 266 nm light. Physical Chemistry Chemical Physics, 14(18), 6165-6172. doi:10.1039/C2CP23435A.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-8976-1 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-4242-A
Genre: Journal Article

Files

show Files
hide Files
:
1465220.pdf (Publisher version), 3MB
Name:
1465220.pdf
Description:
-
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-
:
1465220_1.pdf (Supplementary material), 114KB
Name:
1465220_1.pdf
Description:
-
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show
hide
Description:
-

Creators

show
hide
 Creators:
Vennekate, H.1, Author              
Schwarzer, D.1, Author              
Torres-Alacan, J., Author
Krahe, O., Author
Filippou, A. C., Author
Neese, F., Author
Vöhringer, P., Author
Affiliations:
1Research Group of Reaction Dynamics, MPI for biophysical chemistry, Max Planck Society, ou_578601              

Content

show
hide
Free keywords: -
 Abstract: The ultrafast photo-induced primary processes of the iron-(III) azido complex, [FeIIIN3(cyclam-acetato)] PF6 (1), in acetonitrile solution at room temperature were studied using femtosecond spectroscopy with ultraviolet (UV) excitation and mid-infrared (MIR) detection. Following the absorption of a 266 nm photon, the complex undergoes an internal conversion back to the electronic doublet ground state at a time scale below 2 ps. Subsequently, the electronic ground state vibrationally cools with a characteristic time constant of 13 ps. A homolytic bond cleavage was also observed by the appearance of ground state azide radicals, which were identified by their asymmetric stretching vibration at 1659 cm−1. The azide radical recombines in a geminate fashion with the iron containing fragment within 20 ps. The cage escape leading to well separated fragments after homolytic Fe–N bond breakage was found to occur with a quantum yield of 35%. Finally, non-geminate recombination at nanosecond time scales was seen to further reduce the photolytic quantum yield to below 20% at a wavelength of 266 nm.

Details

show
hide
Language(s): eng - English
 Dates: 2012-01-162012-05-14
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1039/C2CP23435A
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Physical Chemistry Chemical Physics
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 14 (18) Sequence Number: - Start / End Page: 6165 - 6172 Identifier: -