Growth of K(DxH1 − x )2PO4 single crystals from solutions in the K2O-P2O5-(D, H)2O system

Based on the analysis of the K₂O-P₂O₅-D₂O solubility phase diagram, the optimum conditions of KD₂PO₄ crystallization—the compositions of mother solutions and the temperature range of crystallization—in the KH₂PO₄-D₂O system have been determined. The technique of K(D_xH_{1 ? x} )₂PO₄ growth is developed. The DKDP single crystals with deuterium concentration up to 88 wt % are grown on DKDP seeds from KH₂PO₄ solutions in D₂O by the method of temperature decrease.     

Kinetic study of the reaction of nucleophilic cyclopropanation of C60 fullerene with halogenated maleopimarimide

The kinetics of nucleophilic fullerene cyclopropanation by halomethyl ketones with a diterpene fragment has been studied by the Bingel method, and the influence of the biologically active cyclopropanating agent on the process has been estimated. It has been revealed that favorable conditions for carrying out the reaction result in maximum monofunctionalized methanofullerenes formation with the maximum yield.     

New monomers for fullerene-containing polymers

By reaction of 2-(acryloyloxyethyl) and (undecen-10-en-1-yl) methylmalonates with fullerene C₆₀ in the system toluene-CBr₄-DBU, and also by reaction of 2-(2,2-dichloroacetoxy)ethyl acrylate with C₆₀ in the system toluene-DBU the corresponding products of fullerene monocyclopropanation were synthesized.     

Reaction of Methyl Diazoacetate with Amines Catalyzed by Ru<Subscript>2</Subscript>(OAc)<Subscript>4</Subscript>Cl

Reactions of primary and secondary amines with methyl diazoacetate in the presence of Ru₂(OAc)₄Cl gave the corresponding N-substituted glycine methyl esters in almost quantitative yield. Catalytic decomposition of methyl diazoacetate generates methoxycarbonylcarbene which is inserted into the N-H bond of amines with high regioselectivity.     

UV spectroscopic quantitative determination of methanofullerene derivatives with a different degree of substitution

A spectroscopic method for the analysis of compounds belonging to methanofullerenes with different functionalization and a number of substituents is developed. In order to determine the composition of mixtures of these compounds the standard spectrophotometric procedure along with derivative spectroscopy are applied. Acceptable reproducubility and sensitivity of the methods used are demonstrated on model mixtures of fullerene derivatives. The reaction mass obtained in the interaction of fullerene with diallyl ester of malonic acid is analyzed.     

Fullerene C<Subscript>60</Subscript> in copolymerization of allyl chloride with methyl methacrylate

The effect of fullerence C₆₀ on the copolymerization of allyl chloride and methyl methacrylate has been studied. With the use of UV spectroscopy, it has been shown that, with an increase in the conversion, the redistribution of optical densities of two π-π* absorption maxima due to fullerene at λ_max = 407 and 330 nm is observed. A difference in the kinetics of copolymer’s formation in the absence and presence of fullerene has been found.     

Cyclopentene-fused [C60]-fullerenes: synthesis and electrochemical properties

New cyclopentene-fused [C60]-fullerene derivatives containing terpene moieties have been synthesized by [3?+?2]-addition to fullerene C₆₀. All obtained products were fully characterized by ¹H- and ¹³C-NMR, IR, and MS. The electrochemical properties have been studied by cyclic voltammograms (CV), combined with absorption spectra, which are consistent with those obtained from density functional theory (DFT) calculations. It was found that all fulleropyrrolidines showed very similar absorption spectra, orbital energies, in which electron densities in both the LUMO and HOMO are mainly located on the fullerene cage, suggesting that C₆₀ act as the acceptor. All the compounds exhibited good thermal stability. All determined characteristics of fullerene conjugates were compared to [6,6]-phenyl-C61-butyric acid methyl ester ([60]PCBM), a popular fullerene-containing compound.

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Physicochemical characteristics of the radical copolymerization of fullerene-containing methacrylates with vinyl monomers

The radical reactions of copolymerization with vinyl monomers and homopolymerization of synthesized fullerene-containing acrylates are studied. In contrast to the homopolymers, the fullerene-containing copolymers are readily soluble in typical organic solvents. The kinetic parameters of the copolymerization process and molecular-weight characteristics of the resulting products are determined.     

Preparation and investigation of soluble functionalized polyanilines

Physics of the Solid State - Soluble electron-donor conducting (co)polymers based on functionalized monomeric anilines have been synthesized and characterized for the first time. It has been shown...     

Synthesis and Electrophysical Properties of Methanofullerene with C1-Geminal Dimethoxyphosphoryl and Methoxycarbonyl Groups

Russian Journal of Organic Chemistry - Methyl 3′-(dimethoxyphosphoryl)-3′H-cyclopropa[1,9](C60-Ih)[5,6]fullerene-3′-carboxylate has been synthesized, and its electrophysical...