Reduced graphene oxide supported piperazine in aminocatalysis
作者:Eduardo Rodrigo、Beatriz García Alcubilla、Raquel Sainz、J. L. García Fierro、Rafael Ferritto、M. Belén Cid
DOI:10.1039/c4cc02701a
日期:——
Reduced graphene oxide (rGO) has been used as a support for piperazine to provide a heterogeneous bifunctional organocatalyst (rGO-NH) that is able to efficiently promote vintage organic transformations such as Knoevenagel, Michael and aldol reactions. The obtained results suggest a significant role of the support in the course of these reactions.
Establishing the Critical Role of Oriented Aggregation in Molecular Solid State Fluorescence Enhancement
作者:P. Srujana、T. P. Radhakrishnan
DOI:10.1002/chem.201705041
日期:2018.2.6
enantiomorphic and racemic forms, exhibiting not only very high, but distinctly different solid state fluorescence enhancements, has now allowed a systematic investigation of the role of intramolecular and intermolecular excited state energy loss pathways. Crystallographic, spectroscopic and computational investigations provide a detailed appraisal of the assembly patterns in the crystals, and rigorous
7,7,8,8,tetracyanoquinodimethane-2,5-ylene-(3-propionic acid) and
申请人:Nippon Gosei Kagaku Kogyo Kabushiki Kaisha
公开号:US04772432A1
公开(公告)日:1988-09-20
7,7,8,8-Tetracyanoquinodimethane-2,5-ylene-(3-propionic acid) and derivatives thereof represented by the formula ##STR1## wherein R.sub.1 and R.sub.2 are each hydrogen or alkyl. The compounds are useful as materials for preparing polyesters, polyamides and polyurethanes or as intermediates for tetracyanoquinodimethanes for use as organic semiconductors.
Material For Doped And Undoped Hole And Electron Transport Layer
申请人:Johannes Hans-Hermann
公开号:US20080193793A1
公开(公告)日:2008-08-14
The present invention relates to materials useful as an electron or hole transport or injection layer in organic electrooptic devices. The material can form or be part of an electrically conductive organic layer, suitable for the transport of so-called positive charges or holes. The inventive HTL compounds are intrinsically doped HTLs which allows their deposition with greater homogeneity and reproducibility than matrix compositions consisting of a matrix material and an admixed p-dopant.
Synthesis of 1,4-bis(dicyanomethylene) cyclohexane and use thereof in the synthesis of 7,7,8,8-tetracyanoquinodimethane
申请人:THE PROCTER & GAMBLE COMPANY
公开号:EP0019958A1
公开(公告)日:1980-12-10
1,4-bis(dicyanomethylene) cyclohexane is the chemical of choice for the synthesis of TCNQ. The present invention provides a simple, convenient, three-step synthesis of 1,4-bis(dicyanomethylene) cyclohexane from hydroquinone which uses water as the reaction solvent.