Highlighting the Role of the Medium in DFT Analysis of the Photophysical Properties of Ruthenium(II) Polypyridine-Type Complexes

2007 ◽  
Vol 111 (45) ◽  
pp. 11661-11672 ◽  
Author(s):  
Marie-France Charlot ◽  
Ally Aukauloo
Keyword(s):  
Photophysical Properties

Photophysical properties of bridged core-modified hexaphyrins: conjugational perturbation of thiophene bridges

2014 ◽  
Vol 50 (33) ◽  
pp. 4358-4360 ◽  
Author(s):  
Jong Min Lim ◽  
Karthik Ganesan ◽  
Young Mo Sung ◽  
Alagar Srinivasan ◽  
Tavarekere K. Chandrashekar ◽  
...  
Keyword(s):  
Photophysical Properties

The role of thiophene bridges in determining the photophysical properties of bridged core-modified hexaphyrins is investigated.

scholarly journals Role of tau protein on the photophysical properties of fluorescent carbon dots

2021 ◽  
Vol 17 (S2) ◽  
Author(s):  
Nayomi S Camilus ◽  
Sarah Lucas ◽  
Colin Wu ◽  
Rafik Naccache ◽  
Sanela Martic
Keyword(s):  
Tau Protein ◽  
Carbon Dots ◽  
Photophysical Properties ◽  
Fluorescent Carbon Dots ◽  
Fluorescent Carbon

Role of solvent H-bonding and polarity on photophysical properties of a benzothiazole-based ratiometric amyloid fibril sensor

2019 ◽  
Vol 373 ◽  
pp. 20-27 ◽  
Author(s):  
Aruna K. Mora ◽  
Sushant Murudkar ◽  
Alagarsamy Alamelu ◽  
Subrata Chattopadhyay ◽  
Sukhendu Nath
Keyword(s):  
Amyloid Fibril ◽  
Photophysical Properties ◽  
Role Of Solvent

Role of Ligand on Photophysical Properties of Nanoclusters with fcc Kernel: A Case Study of Ag14(SC6H4X)12(PPh3)8 (X = F, Cl, Br)

2021 ◽  
Author(s):  
Anish Kumar Das ◽  
Roopesh Mekkat ◽  
Subarna Maity ◽  
Akhil S. Nair ◽  
Subhrajyoti Bhandary ◽  
...  
Keyword(s):  
Photophysical Properties

scholarly journals Organosulfur Materials with High Photo- and Photo-Oxidation Stability: 10-Anthryl Sulfoxides and Sulfones and Their Photophysical Properties Dependent on the Sulfur Oxidation State

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3506
Author(s):  
Piotr Bałczewski ◽  
Emilia Kowalska ◽  
Ewa Różycka-Sokołowska ◽  
Paweł Uznański ◽  
Joanna Wilk ◽  
...  
Keyword(s):  
Photophysical Properties ◽  
Oxidation Stability ◽  
Sulfur Oxidation ◽  
Frontier Orbitals ◽  
Leading Role ◽  
Full Symmetry ◽  
Homo Lumo ◽  
Very High ◽  
Enhanced Photostability

While few studies show only symmetrical and poorly mono-SOn (n = 0–2) substituted acenes, in this study, we present a synthesis of a new group of unsymmetrical, significantly substituted derivatives, which revealed unique photophysical properties. Both sulfides (S), sulfoxides (SO) and sulfones (SO2) showed very high photochemical stabilities, unusual for these groups, during UV-irradiation at 254/365 nm (air O2 and Ar), which was higher than any found in the literature. For the (S)/(SO) series (254 nm), the stabilities of 80–519 min. (air O2 and Ar) were found. At 365 nm, stabilities of 124—812 min./(air O2) for (S)/(SO) and higher for (SO2) were observed. Photoluminescence lifetimes of (SOn) of the lower anthryl symmetry remained in the following order: (SO2) < (S) < (SO); those with full symmetry were in the following order: (S) < (SO) < (SO2). The enhanced photostability was explained with DFT/MS/Hammett’s constants, which showed the leading role of the SOn groups in stabilization of HOMO/LUMO frontier orbitals. The SOn (n = 0–2) substituted acenes turned out to be tunable violet/blue/green emitters by oxidation of S atoms and the introduction of rich substitution.

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