3163-76-6Relevant articles and documents
Strategy and design in fluorous phase immobilization: A systematic study of the effect of 'pony tails' (CH2)3(CF2)n-1CF3 on the partition coefficients of benzenoid compounds
Rocaboy, Christian,Rutherford, Drew,Bennett, Byron L.,Gladysz
, p. 596 - 603 (2000)
Fluorous solvents commonly exhibit temperature-dependent miscibilities with organic solvents. Thus, catalysts and reagents that have high affinities for fluorous solvents can be used in protocols that combine the advantages of one-phase chemistry (higher temperature) and biphase product separation (lower temperature). The high-yield conversion of benzaldehydes (via Wittig and hydrogenation reactions) to alkylbenzenes with one to three 'pony tails' (CH2)3(CF2)n-1CF3 (n = 6, 8, 10) is described. The toluene-CF3C6F11 partition coefficients show that three pony tails are necessary to achieve a high degree of fluorous phase immobilization. Copyright
Readily useable bulk phenoxazine-based covalent organic framework cathode materials with superior kinetics and high redox potentials
Meng, Zhiying,Zhang, Ying,Dong, Mengqing,Zhang, Yue,Cui, Fengmin,Loh, Teck-Peng,Jin, Yinghua,Zhang, Wei,Yang, Haishen,Du, Ya
supporting information, p. 10661 - 10665 (2021/05/14)
Redox-active covalent organic frameworks (COFs) with dense redox sites are promising electrical energy storage materials with robust architectures, high surface areas, insolubility in electrolytes, and open pores for electrolyte transportation. However, low redox potentials and poor electrical conductivity of pristine COFs often result in low accessibilities of redox-active sites and slow redox kinetics, greatly limiting their practical applications. Herein, we report the design and synthesis of two novel p-type phenoxazine-based COFs (DAPO-COFs) with high redox potentials (～3.6 V vs. Li/Li+) and excellent electrical conductivities. Simply blended with conductive additives (CAs) and binders, pristine bulk DAPO-COFs without pre-composition with CAs or extra exfoliation are readily useable as cathode materials for lithium-ion batteries. Both as-synthesized DAPO-COF powders displayed superior active-site accessibility, ultrafast redox kinetics, and remarkable cycling stability. This work provides new perspectives on the development of readily useable COF-based cathode materials, and contributes to the advancement of eco-friendly and sustainable organic-based energy storage devices. This journal is
A porous fluorinated organic [4+4] imine cage showing CO2and H2adsorption
Kunde, Tom,Nieland, Esther,Schr?der, Hendrik V.,Schalley, Christoph A.,Schmidt, Bernd M.
supporting information, p. 4761 - 4764 (2020/05/13)
We present the synthesis of a porous, organic [4+4] imine cage containing perfluorinated aromatic panels. Gas adsorption experiments show an uptake of 19.0 wt% CO2(4.2 mmol g-1, 273 K and at 1 bar) and 1.5 wt% H2(7.5 mmol g-1, 77 K and at 1 bar) for the specific surface area of 536 m2g-1of the crystalline material obtained directly from the reaction mixture, combined with an outstanding thermal stability, making it a very interesting porous material suitable for gas adsorption.
