17573-92-1Relevant articles and documents
Facile C-S Bond Cleavage of Aryl Sulfoxides Promoted by Bronsted Acid
Brutiu, Bogdan R.,Klose, Immo,Maulide, Nuno
supporting information, p. 488 - 490 (2021/03/09)
A method for the Bronsted acid promoted desulfination of aryl sulfoxides is presented. In the presence of a thiol, electron-rich sulfoxides undergo C-S bond cleavage to give the corresponding protodesulfinated arenes and disulfides.
Triisopropylsilylethynyl substituted benzodithiophene copolymers: Synthesis, properties and photovoltaic characterization
Zhu, Enwei,Luo, Guoping,Liu, Yun,Yu, Jiangsheng,Zhang, Fujun,Che, Guangbo,Wu, Hongbin,Tang, Weihua
supporting information, p. 1595 - 1603 (2015/04/27)
We demonstrated herein the facile synthesis of triisopropylsilylethynyl (TIPS) functionalized benzo[1,2-b:4,5-b′]dithiophene (BDT). Three new TIPSBDT-based donor-acceptor alternating copolymers were further developed by Pd-catalyzed Stille coupling. The effect of accepting unit structure on the optical, electrochemical and energy levels of the polymer was studied. The positive impact of PFN layer, high-boiling solvents processing, polar solvent treatment and solvent annealing on the performance of polymer:PC71BM bulk heterojunction solar cells was revealed. The best devices delivered a power conversion efficiency of 5.46% when blend films processed using o-dichlorobenzene with 3 vol% DIO and treated with the optimization of THF annealing and insertion of PFN layer. The device performance was correlated with the morphology evolution of blend films processed with solvent choice, methanol treatment and THF annealing.
Thiophene-based salen-type new ligands, their structural aspects and a dimeric Cu(II) complex
Asatkar, Ashish K.,Panda, Snigdha,Zade, Sanjio S.
, p. 25 - 32 (2015/05/20)
A new series of thiophene-based ligands has been developed. The reactions of 2-formyl-3-(hydroxyl/methoxy)thiophene with ethylenediamine yielded the thiophene-based salen ligands 7/8. Whereas the reaction of 2-formyl-3-methoxythiophene with 1,2-diaminobenzene, under similar conditions, unexpectedly, afforded 1,2-substituted benzimidazole based ligand 9. Formation of benzimidazole derivative, without any catalyst, is proposed to be induced by nucleophilic attack of methoxy group. Structures and supramolecular assemblies of all the ligands were studied by single crystal X-ray crystallography. Existence of the different tautomeric forms of ligand 7 was observed in solid and solution phases. The reaction of ligand 7 with CuCl2 afforded a bimetallic complex (7-Cu)2. The structure of (7-Cu)2 was confirmed by single crystal X-ray crystallography. Complex (7-Cu)2 exists in dimeric form through oxygen-copper bridged out-of-plane bonding with Cu(II) in a distorted square pyramidal geometry. Cyclic voltammogram of (7-Cu)2 displayed reversible Cu(II)/Cu(I) redox couple.
