57314-83-7Relevant academic research and scientific papers
High-capacity organic cathode active materials of 2,2′-bis-p-benzoquinone derivatives for rechargeable batteries
Yokoji, Takato,Kameyama, Yuki,Maruyama, Norihiko,Matsubara, Hiroshi
supporting information, p. 5457 - 5466 (2016/05/24)
Rechargeable batteries using organic cathode materials are expected to afford high mass energy densities since these materials can undergo multiple electron redox reactions per molecule. Although the batteries using benzoquinone (BQ) derivatives as organic cathode active materials exhibited high theoretical capacity, their practical capacities and cycle retention were far from satisfactory. To overcome these problems, dimeric BQ derivatives based on the 2,2′-bis-p-benzoquinone (BBQ) framework were synthesized, and the charge-discharge behaviour of the prepared cells using BBQs as the cathode active materials was investigated. BBQ-based cells exhibited excellent performance compared to those based on BQ monomers. For example, the BBQ cell afforded a high initial capacity of 358 A h kg-1 (more than twice that of current lithium-ion batteries that use LiCoO2 as the cathode active material) and a high cycle retention of 198 A h kg-1 at 50 cycles. Electrochemical measurements and density functional theory (DFT) calculations indicated that three electron-redox reactions generally occur in BBQ derivatives, although (OMe)2-BBQ appeared to undergo a four-electron redox reaction.
Psychotomimetic phenylisopropylamines. 5. 4 alkyl 2,5 dimethoxyphenylisopropylamines
Shulgin,Dyer
, p. 1201 - 1204 (2007/10/06)
A homologous series of 4 alkyl 2,5 dimethoxyphenylisopropylamines (alkyl = H through n C5H11 and t C4H9) was synthesized and compared with mescaline as serotonin agonists in a sheep umbilical preparation. The three carbon homolog 6d was found to be the most potent of the straight chain series in accordance with its observed psychotomimetic effectiveness in man.
