First Russian-Chinese Workshop on Organic and Supramolecular Chemistry Abstracts

June 09, 2018

HETEROGENEOUS N-GLYCOCONJUGATES AS SYSTEMS OF TARGETED DELIVERY

Regina Sibgatullina

Due to the wide variance in glycoprotein/glycolipid/proteoglycan assemblies among differing cell types, the asparagine-linked glycans (N-glycans) and their glycoconjugates are known to play crucial roles for cell-to-cell interactions, differentiation, intracellular trafficking, and immune modulation. We have developed method for the synthesis of structurally well-defined heterogeneous glycoconjugates based on the one-pot double “click” methodology containing strain-promoted click reaction (al...

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June 08, 2018

NOVEL INDOLIZINE BASED RED TO NEAR INFRARED EMITTING PUSH-PULL CHROMOPHORES

LILIYA ISLAMOVA

Push-pull organic chromophores attract considerable attention in the field of organic electronics, namely in Dye-sensitized solar cells (DSCs) and light-emitting diodes (OLED). High-efficiency NIR absorbing D-π-A dyes require balanced donor and acceptor strengths to avoid nonbeneficial energy loses and level perturbations. Frequently, strongly electron-deficient motifs (acceptors) result in excited-state oxidation potentials that are too stabilized for electron injection into the TiO2 conduct...

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June 08, 2018

NOVEL QUINOXALINONE/QUINOXALINE BASED CHROMOPHORES: QUANTUM-CHEMICAL APPROACH FOR THE CHARACTERIZATION OF THE GROUND AND EXCITED STATES

Timur Burganov

π-conjugated push-pull type organic molecules demonstrate a great potential in a number of important energy saving applications in organic electronics acting as functional layers in non-linear optical materials, organic light-emitting diodes and photovoltaic applications. A blind screening of the variety of possible chemical structures as well as an establishment of “structure-properties” relationships using common empirical rules is an ineffective and unreliable approach. At the same time o...

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June 07, 2018

DESIGN OF NEW THIACALIX[4]ARENE BASED SUPRAMOLECULAR COORDINATION CAGES

Maria Knyazeva

Supramolecular coordination cages or discrete metal-organic species offering the inner cavity able to accommodate different molecules have attracted significant interest due to their diversity and widely potential applications in gas separation and storage, molecular recognition and catalysis, including photocatalic activity. In this work we report the synthesis of new octahedral and hexahedral coordination cages using tert-butylsulfonylcalix[4]arene with dicarboxylic acids and nickel (II) or...

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June 07, 2018

SELF-ASSEMBLY, SORPTION PROPERTIES AND SOLID STATE REACTIONS OF DIPEPTIDES

Marat Ziganshin

Short-chain oligopeptides are popular objects for study at the present time, because of their potential advantages for various technologies and their ability to self-assembly with the formation of various nanostructures depending on the conditions. In the present work we have demonstreted the specific sorption properties of dipeptides, their ability to self-assembly and reaction in solid state under heating.

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June 06, 2018

DESIGN OF MOLECULAR SWITCHERS BASED ON TETRAPYRROLIC COMPOUNDS

Yulia Gorbunova

Functional properties of such macrocyclic tetrapyrrolic ligands as porphyrins and their derivatives are widely exploited in natural and artificial systems. The molecular structure of free base porphyrins and their complexes can be precisely adapted to the target function and the operating environment by varying the substituents on the macrocycle. Another tool widely used by Nature to increase the functional performance of tetrapyrroles is the coordination and supramolecular chemistry approach...

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June 06, 2018

SYNTHESIS, STRUCTURE AND SUPRAMOLECULAR PROPERTIES OF NEW MOLECULAR BUILDING BLOCKS BASED ON CARBOXYL DERIVATIVES OF METACYCLOPHANES BEARING PHOTOSWITCHABLE AZO GROUPS

Zaliya Akhmetzyanova

A lot of last investigations in the field of supramolecular chemistry are focusing on the synthesis of new architectures exhibiting the responsiveness on the exterior stimuli [1]. Light driven photo-switchable systems are very promising for design of new materials with controlled properties (porosity, luminescence etc). Metacyclophanes, especially calix[4]arenes, composed of four aryl units bridged through methylene groups (for “classical” calix[4]arene) or sulphur atoms (for thiacalix[4]aren...

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June 05, 2018

PHOTOCATALYTIC ACTIVITY OF MODIFICATED TITANIUM DIOXIDE STABILIZED IN POLYMER MATRIX

Elza Sultanova

We present a synthesis of metal nanoparticles stabilized on multicharged polymeric matrix containing TiO2 for photocatalytic applications.

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June 05, 2018

SYNTHESIS AND COMPLEXATION PROPERTIES OF TIADIASOLYL DERIVATIVES OF (TIA)CALIX[4]ARENES

Sofiya Kleshnina

In this work, the methods for synthesis of p-tert-butyl(thia)calix[4]arene derivatives with thiadiazolyl fragments based on corresponding carboxyl derivatives were developed and their compexation properties toward different metal cations were studied.

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June 05, 2018

A NEW METHOD OF FORMING HETEROCYCLES FROM KETOACETYLENIC PRECURSORS ON A MACROCYCLIC PLATFORM

Farida Galieva

Recently, a special attention is devoted to the preparation of ketoacetylenes due to their high potential for the design of heterocyclic compounds with complexing properties. In particular, such activated conjugated system allows the nucleophilic addition of nitrogen-containing nucleophiles to form isoxazole, pyrazole, and pyrimidine fragments. In this case, the introduction of ketoacetylenic fragments in calix[4]arene scaffold combines several reaction centers in a molecule. In work, the sy...

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