7753-13-1Relevant articles and documents
C3-Symmetric Positional Isomers of BODIPY Substituted Triazines: Synthesis and Excited State Properties
Maragani, Ramesh,Thomas, Michael B.,Misra, Rajneesh,D'Souza, Francis
, p. 4829 - 4837 (2018)
A series of meso-O-aryl functionalized BODIPY trimers positioned along the C3-symmetric axis of triazine ring have newly been synthesized to probe the ground and excited state intramolecular type interactions between the BODIPY entities within the trimer. The developed synthetic strategy resulted in BODIPY trimers in good yields. The electron rich, meso-O-aryl functionalized BODIPYs revealed larger HOMO-LUMO gap and higher Stokes shift and fluorescence lifetimes compared to the traditional BODIPY derivatives having an aryl group attached at the meso position. The optical absorption, steady-state fluorescence, and electrochemical studies revealed weak, if any, intramolecular type interactions among the BODIPY entities within the trimer and the central triazine unit to be both photo- and redox-salient. The possibility of singlet-singlet energy migration among the BODIPY entities was investigated using time-resolved emission and femtosecond transient absorption studies. Excitation of a BODIPY entity in the trimers led to successful formation of 1BODIPY?, which populated the 3BODIPY? via intersystem crossing. Among the three trimers, although very weak, only trimer 8 revealed excitation transfer to some extent. The present findings suggest that the meso-O-aryl functionalized BODIPYs due to their superior fluorescence properties are better probes to build light energy harvesting supramolecular oligomeric systems and for other applications such as sensing and imaging.
A Shape-Persistent Cryptand for Capturing Polycyclic Aromatic Hydrocarbons
Zhang, Rui-Feng,Hu, Wen-Jing,Liu, Yahu A.,Zhao, Xiao-Li,Li, Jiu-Sheng,Jiang, Biao,Wen, Ke
, p. 5649 - 5654 (2016)
A shape-persistent cryptand 1, containing two face-to-face oriented electron-deficient 2,4,6-triphenyl-1,3,5-triazine units separated by approximately 7 ?, and bridged by two rigid 1,8-naphthyridine linkers and a pentaethylene oxide loop, is created for c
Design and synthesis of C3-symmetric molecules containing oxepine and benzofuran moieties via Metathesis
Gupta, Naveen Kumar,Kotha, Sambasivarao,Solanke, Balaji. U.
, (2021/07/17)
We report a new synthetic strategy to C3-symmetric star-shaped phenyl and triazine central cores bearing oxepine and benzofuran ring systems. In this regard, we have explored the application of metathetic strategy to construct C3-sym
COMPOSITION FOR FILM FORMATION, FILM, RESIST UNDERLAYER FILM-FORMING METHOD, PRODUCTION METHOD OF PATTERNED SUBSTRATE, AND COMPOUND
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Paragraph 0199, (2019/04/14)
The composition for film formation includes a compound including a group of the formula (1) and a solvent. In the formula (1), R1 to R4 each independently represent a hydrogen atom, a monovalent organic group having 1 to 20 carbon at