4371-32-8Relevant articles and documents
Electrochemically manipulating the redox state of 2,2′,5,5′-tetrahydroxybiphenyl as a new organic Li-rich cathode for Li-ion batteries
Fan, Cong,Li, Di,Shi, Jianyou,Tang, Wu,Wang, Chuan,Yao, Zeyi,Yu, Qihang
, (2020)
For the first time, a small organic molecule of 2,2′,5,5′-tetrahydroxybiphenyl (BP4OH) is synthesized as a new organic cathode for Li-ion batteries. After setting reduction in the 1st cycle in Li-ion half cells (reduction→oxidation), BP4OH can be in-situ transformed to its salt of lithium 2,2′-bis[benzene-1,4-bis(olate)] (BP4OLi) on Al foil. The resulting BP4OLi is a Li-rich organic cathode and exhibits very good cell performance. For example, the average capacity of ~155 mAh g?1 for the BP4OLi electrode is realized during 600 cycles (500 mA g?1). On the other hand, after setting oxidation in the 1st cycle (oxidation→reduction), BP4OH can be in-situ tuned to its oxidized state of 2,2′-bis(1,4-benzoquinone) (BBQ). Interestingly, the resulting BBQ can be still redox-active and show satisfactory cell performance. For instance, the average capacity of ~101 mAh g?1 for the BBQ electrode can be obtained for 600 cycles (500 mA g?1). This work reveals very interesting redox behaviors of organic electrodes.
p-Doped high spin polymers
Bushby, Richard J.,McGill, David R.,Ng, Kai M.,Taylor, Norman
, p. 2343 - 2354 (2007/10/03)
High spin polymers have been created from p-doping of networked polyaryl and polyarylamine polymers which were synthesized using the Pd0 mediated coupling reaction of aryl di- and tri-bromides with aryl bis- and tris-boronic acids. The doping p
Regiochemical Control in the Oxidative Coupling of Metal Phenolates: Highly Selective Synthesis of Symmetric, Hydroxylated Biaryls
Sartori, Giovanni,Maggi, Raimondo,Bigi, Franca,Arienti, Attilio,Casnati, Giuseppe
, p. 2207 - 2210 (2007/10/02)
Oxidative coupling of highly coordinating metal phenolates promoted by FeCl3 afforded variously substituted symmetric 2,2'-dihydroxy biaryls in good yield and high regiochemical control. Key words: Oxidative coupling; metal phenolates; 2,2'-dihydroxy biar