Immobilization of an Iridium Pincer Complex in a Microporous Polymer for Application in Room‐Temperature Gas Phase Catalysis
作者:Michaela König、Massimo Rigo、Nicolas Chaoui、Trung Tran Ngoc、Jan Dirk Epping、Johannes Schmidt、Pradip Pachfule、Meng‐Yang Ye、Matthias Trunk、Johannes F. Teichert、Matthias Drieß、Arne Thomas
DOI:10.1002/anie.202004092
日期:2020.11.2
An iridium dihydride pincer complex [IrH2(POCOP)] is immobilized in a hydroxy‐functionalized microporous polymer network using the concepts of surface organometallic chemistry. The introduction of this novel, truly innocent support with remote OH‐groups enables the formation of isolated active metal sites embedded in a chemically robust and highly inert environment. The catalyst maintained high porosity
Application of novel triarylmethane dyes having thienyl, thieno[3,2-b]thienyl, and dithieno[3,2-b:2′,3′-d]thienyl rings as auxochromes to super acid pH sensors
Novel triarylmethane dyes decorated with 2-thienyl, 2-thieno[3,2-b]thienyl, and 2-dithieno[3,2-b:2′,3′-d]thienyl rings as auxochromes were much more bathochromic than the known crystal violet. The hydrol precursors of these new dyes exhibited potential applications as strong and super acid pH sensors.
用2-噻吩基,2-噻吩并[3,2- b ]噻吩基和2-二噻吩并[3,2 - b:2',3'- d ]噻吩基环修饰的新型三芳基甲烷染料的红移比已知的结晶紫。这些新型染料的水合物前体作为强酸性和超酸性pH传感器具有潜在的应用前景。
Methane-perylene diimide-based small molecule acceptors for high efficiency non-fullerene organic solar cells
We report perylene diimide (PDI) smallmoleculesbased on diphenylmethane, triphenylmethane, and tetraphenylmethane cores, named PM-PDI2, PM-PDI3 and PM-PDI4, respectively. The OSC performances of PM-PDI3 and PM-PDI4 are comparable. The PM-PDI3 based device with PDBT-T1 as the donor achieved a highest power conversion efficiency (PCE) of 7.58% along with a high open-circuit voltage (VOC) of 0.98 V
我们报道了基于二苯甲烷,三苯甲烷和四苯甲烷核的per二酰亚胺(PDI)小分子,分别命名为PM-PDI 2,PM-PDI 3和PM-PDI 4。PM-PDI 3和PM-PDI 4的OSC性能相当。的PM-PDI 3与基于设备PDBT-T1作为施主具有高的开路电压(沿达到7.58%最高功率转换效率(PCE)V OC为0.98V,短路电流密度)(Ĵ SC)为11.02 mA cm -2高填充因子(FF)为69.9%,相对于基于PM-PDI 2的控制设备(3.26%),PCE提升了1.32倍。基于PM-PDI 3的设备的高光伏性能可归因于其相对较高的LUMO能级,与聚合物供体材料PDBT-T1互补的吸收光谱,相对良好的形貌以及改进的激子离解和电荷收集效率。7.58%的PCE是苯基甲烷作为核心非富勒烯有机太阳能电池的最高效率之一。总的来说,这项工作提供了一种增强非富勒烯受体性能的新方法。
Internal Functionalization of Three-Dimensional Covalent Organic Frameworks
作者:David N. Bunck、William R. Dichtel
DOI:10.1002/anie.201108462
日期:2012.2.20
Thinking inside the COF: Internally functionalized, boroxine‐linked, three‐dimensional, covalentorganicframeworks (COFs) can be synthesized by co‐crystallizing a truncated, trifunctional monomer with the parent tetrafunctional building block. The functionalized COFs possess accessible functional groups and a distinct interior microenvironment. In the picture the orange sphere corresponds to an alkyl
Organic functions built on the node of a porous covalent architecture exhibit excellent affinity for CO2(54 kJ mol−1) and CH4(25 kJ mol−1): the interaction of CO2favorably with amine groups was observed by 2D NMR.