Synthesis and Photophysical Properties of a Sc3N@C80‐Corrole Electron Donor–Acceptor Conjugate

Embedding endohdedral metallofullerenes (EMFs) into electron donor–acceptor systems is still a challenging task owing to their limited quantities and their still largely unexplored chemical properties. In this study, we have performed a 1,3‐dipolar cycloaddition reaction of a corrole‐based precursor with Sc₃N@C₈₀ to regioselectively form a [5,6]‐adduct ( 1 ). The successful attachment of the corrole moiety was confirmed by mass spectrometry. In the electronic ground state, absorption spectra suggest sizeable electronic communications between the electron acceptor and the electron donor. Moreover, the addition pattern occurring at a [5,6]‐bond junction is firmly proven by NMR spectroscopy and electrochemical investigations performed with 1 . In the electronically excited state, which is probed in photophysical assays with 1 , a fast electron‐transfer yields the radical ion pair state consisting of the one‐electron‐reduced Sc₃N@C₈₀ and of the one‐electron‐oxidized corrole upon its exclusive photoexcitation. As such, our results shed new light on the practical work utilizing EMFs as building blocks in photovoltaics.     

松木-聚氯乙烯复合材料催化热解特性的研究

通过热重法研究了松木与聚氯乙烯复合材料的催化热解特性,结果表明聚氯乙烯脱氯阶段与松木的纤维素、半纤维素热分解阶段温度区间重合,二者共热解时存在协同效应,并且HCl的释放对纤维素的脱水反应能够产生催化作用,HCl释放也对木质素的热分解及碳化反应有着明显的催化作用,导致二者共热解制备的碳化物产率提高,约为29.61%。并且利用元素分析仪、扫描电镜和能谱仪对成碳材料进行表征分析,结果表明成碳材料表面粗糙呈现多孔结构,其碳元素含量较高达到74.67%。     

On Necessary Optimality Conditions with Higher-Order Complementarity Slackness for Set-Valued Optimization Problems

Set-Valued and Variational Analysis - We aim to establish Karush-Kuhn-Tucker multiplier rules involving higher-order complementarity slackness under Hölder metric subregularity. These rules...