卷 474, 编号 2 (2017)

A new strategy for the synthesis of adamantane-containing polyphenols of a porphyrin series has been suggested on the basis of Suzuki–Miyaura reaction between 1,3,5,7-tetrakis(4'-iodophenyl)adamantane and a monoboryl derivative of substituted porphyrin. The synthesis of this porphyrin assembly on the adamantane core followed by chemical transformations of this compound has provided a possibility to synthesize the corresponding polyphenol derivative. The latter has been used in the development of positive photoresists for nanolithography with exposure to radiation at a wavelength 13.5 nm capable of producing topological structures with a resolution of 16 nm.

The processes taking place in the Cu^I/L/solv system (L = bipy, phen) in the presence of the [B₁₂H₁₂]^2– anion, which exhibited the lowest reducing ability among the [B_nH_n]^2– cluster anions (n = 6, 10, 12), were studied. The binuclear complexes [Cu₂(L)₄(μ-CO₃)][B₁₂H₁₂] · n(solv) were found to be formed upon the redox reaction of (C₆H₅)₄P[Cu[B₁₂H₁₂]] with a twofold excess of L or the reaction of copper(II) complex [(Cu₂(phen)₄(CO₃)]Cl₂ with [(C₄H₉)₃NH]₂[B₁₂H₁₂]. The Cu(II) complexes were characterized by X-ray diffraction; their EPR-spectra were studied at 295 K and the magnetic measurements were performed in the 300–2 K range. In the [Cu₂(phen)₄(μ-CO₃)][B₁₂H₁₂] · DMF dimer with the anti-anti coordination of the (μ-CO₃)-group, strong antiferromagnetic interactions occur between the Cu(II) atoms (Cu⋯Cu = 5.107 Å).

Interfacial phenomena on the surface of carbon nanomaterials (CNM) in aqueous solutions in the presence of surfactants were studied experimentally and theoretically. The hydrodynamic radius and electrokinetic potential of particles of the dispersed phase and the concentration of functional groups on the CNM surface were found. The points of zero charge of solutions of the dispersed phase were measured, and so were their shifts with varying electrolyte concentrations, which make it possible to determine the pH values at which the CNM particles are electrically neutral.