Electronic Structure in Pyridinium-Based Metal-to-Ligand Charge-Transfer Excited States by Step-Scan FTIR Time-Resolved Spectroscopy

1998 ◽  
Vol 102 (18) ◽  
pp. 3042-3047 ◽  
Author(s):  
Pingyun Chen ◽  
Richard A. Palmer ◽  
Thomas J. Meyer
Keyword(s):  
Electronic Structure ◽  
Charge Transfer ◽  
Excited States ◽  
Time Resolved ◽  
Time Resolved Spectroscopy ◽  
Ligand Charge Transfer

Application of Time-Resolved Infrared Spectroscopy to Electronic Structure in Metal-to-Ligand Charge-Transfer Excited States

2002 ◽  
Vol 41 (23) ◽  
pp. 6071-6079 ◽  
Author(s):  
Dana M. Dattelbaum ◽  
Kristin M. Omberg ◽  
Jon R. Schoonover ◽  
Richard L. Martin ◽  
Thomas J. Meyer
Keyword(s):  
Electronic Structure ◽  
Infrared Spectroscopy ◽  
Charge Transfer ◽  
Excited States ◽  
Time Resolved ◽  
Ligand Charge Transfer ◽  
Time Resolved Infrared Spectroscopy

Synthesis and Photochemical Properties of Re(I) Tricarbonyl Complexes Bound to Thione and Thiazole-2-ylidene Ligands

2020 ◽  
Author(s):  
Matthew Stout ◽  
Brian Skelton ◽  
Alexandre N. Sobolev ◽  
Paolo Raiteri ◽  
Massimiliano Massi ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Excited States ◽  
Ligand Exchange ◽  
Ligand Substitution ◽  
Bidentate Ligand ◽  
The Other ◽  
Ligand Exchange Reaction ◽  
Multiple Products ◽  
Ligand Charge Transfer ◽  
Photochemical Properties

<p>Three Re(I) tricarbonyl complexes, with general formulation Re(N^L)(CO)<sub>3</sub>X (where N^L is a bidentate ligand containing a pyridine functionalized in the position 2 with a thione or a thiazol-2-ylidene group and X is either chloro or bromo) were synthesized and their reactivity explored in terms of solvent-dependent ligand substitution, both in the ground and excited states. When dissolved in acetonitrile, the complexes bound to the thione ligand underwent ligand exchange with the solvent resulting in the formation of Re(NCMe)<sub>2</sub>(CO)<sub>3</sub>X. The exchange was found to be reversible, and the starting complex was reformed upon removal of the solvent. On the other hand, the complexes appeared inert in dichloromethane or acetone. Conversely, the complex bound to the thiazole-2-ylidene ligand did not display any ligand exchange reaction in the dark, but underwent photoactivated ligand substitution when excited to its lowest metal-to-ligand charge transfer manifold. Photolysis of this complex in acetonitrile generated multiple products, including Re(I) tricarbonyl and dicarbonyl solvato-complexes as well as free thiazole-2-ylidene ligand.</p>

Excited States of C70and the Intersystem Crossing Process Studied by Picosecond Time-Resolved Spectroscopy in the Visible and Near-IR Region

1996 ◽  
Vol 100 (25) ◽  
pp. 10518-10522 ◽  
Author(s):  
Akira Watanabe ◽  
Osamu Ito ◽  
Motoyuki Watanabe ◽  
Haruhisa Saito ◽  
Musubu Koishi
Keyword(s):  
Excited States ◽  
Intersystem Crossing ◽  
Time Resolved ◽  
Time Resolved Spectroscopy ◽  
Near Ir
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