نتایج جستجو برای: tcne

تعداد نتایج: 120  

2016
Mikhail Yu Ievlev Oleg V Ershov Mikhail Yu Belikov Angelina G Milovidova Viktor A Tafeenko Oleg E Nasakin

An efficient diastereoselective approach for the synthesis of functionalized 3,4-dihydro-2H-pyran-4-carboxamides with variable frame was developed based on the reaction of available 4-oxoalkane-1,1,2,2-tetracarbonitriles (adducts of TCNE and ketones) with aldehydes in an acidic media. An unusual process of quasi hydrolysis of the cyano group was observed in the course of the described regio- an...

2013
T. Veeraiah

The project report entitled, “ Charge Transfer Comlexes of drugs with  acceptors” is divided into two parts. Part-I deals with the spectrophotometric studies of molecular complexes of drugs with TCNE and Paraquat and Part II deals with Ion-pair charge transfer complexes of drugs with acidic triphenylmethane dyes. Each part is further divided into 1) Introduction 2) Experimental and 3) Results ...

Journal: :Dalton transactions 2011
Thomas Kauf Pierre Braunstein

The reaction of TCNE and TCNQ zwitterionic benzoquinonemonoimine derivatives under basic conditions resulted in HCN elimination to give a tricyanoethenyl derivative - which forms a π-complex with Pd(0)--or a stable malodinitrile salt, respectively. In the latter case, chemoselective C-alkylation was observed whereas oxidation led to dimerization by C-C coupling.

Journal: :AVS quantum science 2021

Quantum information science and engineering requires novel low-loss magnetic materials for magnon-based quantum-coherent operations. The search materials, traditionally driven by applications in microwave electronics near room-temperature, has gained additional constraints from the need to operate at cryogenic temperatures many quantum technology. Whereas yttrium iron garnet (YIG) been material...

Journal: :Physical review letters 2009
Daniel Wegner Ryan Yamachika Xiaowei Zhang Yayu Wang Tunna Baruah Mark R Pederson Bart M Bartlett Jeffrey R Long Michael F Crommie

We have fabricated hybrid magnetic complexes from V atoms and tetracyanoethylene ligands via atomic manipulation with a cryogenic scanning tunneling microscope. Using tunneling spectroscopy we observe spin-polarized molecular orbitals as well as Kondo behavior. For complexes having two V atoms, the Kondo behavior can be quenched for different molecular arrangements, even as the spin-polarized o...

2004
Tong Li Chunlin Zhou Ming Jiang

Polystyrene (PSt) exhibits a new UV absorption band at around 290nm in comparison with ethylbenzene, which is attributed to associative interaction between pendant phenyl groups, similar absorption bands are also observed for polymers of styrene derivatives. The UV spectra suggest charge-transfer complex formation between the polymeric and monomeric donors with electron-acceptor tetracyanoethyl...

Journal: :Acta Crystallographica Section A Foundations of Crystallography 2011

Journal: :Dalton transactions 2015
Thomas Kauf Vitor Rosa Christophe Fliedel Roberto Pattacini Naina Deibel Teresa Avilés Biprajit Sarkar Pierre Braunstein

The reactions of TCNE- and TCNQ-functionalized (TCNE: tetracyanoethylene and TCNQ: 7,7',8,8'-tetracyanoquinodimethane) zwitterionic benzoquinonemonoimines with a Cu(I)-BIAN complex (BIAN = bis(o,o'-bisisopropylphenyl)acenaphthenequinonediimine) have been investigated and found to follow a diversity of interesting patterns. The complexes [Cu(BIAN)(NCMe)(L2)]BF4 (2) and [Cu(BIAN)(L2)2]BF4 (4) wer...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده علوم پایه 1393

دو روش ساده، حساس و گزینش پذیر برای اندازه گیری داروهای آلوپورینول و لیدوکائین در فرم خالص، فرآورده های دارویی و بیولوژیکی توسعه داده شده اند. روش اول بر مبنای تشکیل کمپلکس های انتقال بار با استفاده از پذیرنده های الکترون از جمله 2،3-دی کلرو-6،5-دی سیانو-4،1 بنزوکینون ((ddq وتتراسیانوکوئینودیمتان (tcnq) با آلوپورینول و تتراسیانواتیلن (tcne) با لیدوکائین استوار است. کمپلکس های انتقال بار تشکیل ی...

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