scholarly journals Synchrotron ultrafast techniques for photoactive transition metal complexes

2013 ◽  
Vol 371 (1995) ◽  
pp. 20120132 ◽  
Author(s):  
Elisa Borfecchia ◽  
Claudio Garino ◽  
Luca Salassa ◽  
Carlo Lamberti
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Structural Changes ◽  
Time Resolved ◽  
X Ray ◽  
Use Of Time ◽  
Wide Range ◽  
Analysis Strategies ◽  
X Ray Absorption

In the last decade, the use of time-resolved X-ray techniques has revealed the structure of light-generated transient species for a wide range of samples, from small organic molecules to proteins. Time resolutions of the order of 100 ps are typically reached, allowing one to monitor thermally equilibrated excited states and capture their structure as a function of time. This review aims at providing a general overview of the application of time-resolved X-ray solution scattering (TR-XSS) and time-resolved X-ray absorption spectroscopy (TR-XAS), the two techniques prevalently employed in the investigation of light-triggered structural changes of transition metal complexes. In particular, we herein describe the fundamental physical principles for static XSS and XAS and illustrate the theory of time-resolved XSS and XAS together with data acquisition and analysis strategies. Selected pioneering examples of photoactive transition metal complexes studied by TR-XSS and TR-XAS are discussed in depth.

scholarly journals Probing the oxidation state of transition metal complexes: a case study on how charge and spin densities determine Mn L-edge X-ray absorption energies

2018 ◽  
Vol 9 (33) ◽  
pp. 6813-6829 ◽  
Author(s):  
Markus Kubin ◽  
Meiyuan Guo ◽  
Thomas Kroll ◽  
Heike Löchel ◽  
Erik Källman ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Oxidation State ◽  
Transition Metal Complexes ◽  
Theoretical Approach ◽  
X Ray ◽  
Local Charge ◽  
X Ray Absorption ◽  
Spin Densities

A combined experimental and theoretical approach reveals correlations of metal L-edge X-ray absorption energies to local charge and spin densities.

Ultrafast laser-driven x-ray spectrometer for x-ray absorption spectroscopy of transition metal complexes

2004 ◽  
Vol 29 (9) ◽  
pp. 1028 ◽  
Author(s):  
Frank Benesch ◽  
Taewoo Lee ◽  
Yan Jiang ◽  
Christoph G. Rose-Petruck
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Absorption Spectroscopy ◽  
Ultrafast Laser ◽  
X Ray ◽  
X Ray Absorption

Configuration Determination of Transition Metal Complexes by Multiple Scattering EXAFS Analysis: A Case Study

2014 ◽  
Vol 228 (10-12) ◽  
Author(s):  
Matthias Bauer
Keyword(s):  
Fine Structure ◽  
Transition Metal ◽  
Metal Complexes ◽  
Multiple Scattering ◽  
Transition Metal Complexes ◽  
X Ray ◽  
Exafs Analysis ◽  
X Ray Absorption

AbstractA multiple scattering extended X-ray absorption fine structure (EXAFS) analysis of Ti(acac)

scholarly journals Azoligands as Bridged in Macrocyclic Dinickel Complexes

2010 ◽  
Vol 5 (1) ◽  
pp. 7-23
Author(s):  
Vasile Lozan
Keyword(s):  
Coordination Chemistry ◽  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
X Ray ◽  
X Ray Crystallography ◽  
Coordination Site ◽  
Wide Range

The coordination chemistry of dinickel macrocyclic hexaamine-dithiophenolate complexes of Robson-type with azoligands is presented in this microreview. All complexes have been characterised by IR-,UV/Visspectroscopy, and X-ray crystallography. The bioctahedral transition metal complexes of the type [(L6)Ni2(μ-L')]+ exhibit a rich coordination chemistry since the active coordination site L' is accessible for a wide range of exogenous coligands.

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