Synthesis, Characterization, and Photophysical and Emission Solvatochromic Study of Rhenium(I) Tetra(isocyano) Diimine Complexes
Chi-Chiu Ko
Jacky Wai-Kit Siu
Apple Wai-Yi Cheung
Shek-Man Yiu
10.1021/om200074t.s002
https://acs.figshare.com/articles/dataset/Synthesis_Characterization_and_Photophysical_and_Emission_Solvatochromic_Study_of_Rhenium_I_Tetra_isocyano_Diimine_Complexes/2649541
A new series of rhenium(I) tetra(isocyano) diimine complexes ([Re(CNR)<sub>4</sub>(N–N)]<sup>+</sup>, where R = 4-IC<sub>6</sub>H<sub>4</sub>, 4-BrC<sub>6</sub>H<sub>4</sub>, 4-Br-2,6-Me<sub>2</sub>C<sub>6</sub>H<sub>2</sub>, 2,4,6-Cl<sub>3</sub>C<sub>6</sub>H<sub>2</sub>, 2,4,6-Br<sub>3</sub>C<sub>6</sub>H<sub>2</sub>, 2,4-Cl<sub>2</sub>-6-MeOC<sub>6</sub>H<sub>2</sub> and N–N = bpy, (MeO)<sub>2</sub>bpy, <sup><i>t</i></sup>Bu<sub>2</sub>bpy, phen, 1-methyl-2-(2′-pyridyl)imidazole) with various isocyanide and diimine ligands of diverse electronic and steric natures has been synthesized and characterized. The X-ray crystal structures of four of the target complexes were also determined. These complexes were found to show orange to red MLCT (dπ(Re) → π*(N–N)) phosphorescence. Given the submicrosecond solution emission lifetime, nanosecond transient absorption spectroscopic studies have been performed. The emission solvatochromic behavior and the electrochemical properties of these complexes and their structural correlation have also been reported.
2011-05-23 00:00:00
Br
target complexes
electrochemical properties
Cl
3C
Emission Solvatochromic Study
emission solvatochromic behavior
IC
steric natures
6H
MLCT
diimine ligands
submicrosecond solution emission lifetime
absorption spectroscopic studies