Triboluminescence and crystal structure of the complex [Eu(MBA) Dipy] (HMBA).

The atomic structure of the crystals [Eu(MBA) Dipy] (HMBA) (MBA-аnion toluic acid, Dipy-2,2'-dipyridyl, HMBA-toluic acid), displaying intensive luminescence and triboluminescence was determined using single crystal X-ray diffraction analysis. The triclinic centrosymmetric crystals have the following parameters: a = 10.620(2), b = 11.

Optical properties and electronic structure of Eu(III) complexes with HMPA and TPPO.

Two adducts of Eu(III) tris-hexofluoroacetylacetonate with HMPA (OP(N(CH)), hexamethylphosphotriamide) and TPPO (OP(CH), triphenylphosphine oxide) were studied by optical spectroscopy and quantum chemistry (DFT/TD-DFT). The structure of the higher occupied molecular orbitals (MO) of the two adducts determines differences in the position of the excitation band maximum of hfac ligands. According to the calculation data, all excited states are caused by the transition to 3 vacant π* MOs of hfac ligands.

Unexpected luminescent and photochemical properties of europium(III) cinnamates - Theoretical and experimental study.

The luminescent and photochemical properties of europium(III) cinnamates [Eu(Cin)] (I) and Eu(Cin)·(phen) (II) were investigated in theoretical and experimental aspects. The high photostability of the complex I was explained. The complex II displays weak luminescence and low photostability in spite of the presence of a powerful antenna ligand 1,10-phenantroline in its coordination sphere.

Electronic structure and optical properties of Ln(III) nitrate adducts with 1,10-phenanthroline.

Adducts of tris-nitrates of rare-earth elements Ce(III), Nd(III), Eu(III), and Er(III) with two molecules of 1,10-phenanthroline with formula Ln(NO)(Phen) are studied by X-ray photoelectron spectroscopy (XPS) and quantum chemistry (DFT/TDDFT). The geometric structure for DFT modeling is build using X-ray diffraction data. To analyze the composition and differences of the electronic structure in the series under study, XPS spectra were obtained for which interpretation was performed using calculated data.

[The experience with the organization of the health resort-based treatment of the children under conditions of a megapolis. The present and the future of the service].

Background: The Moscow Health Department organized an efficient and comprehensive three-level system of medical rehabilitation for the children. Health resort-based treatment is normatively a component of the third stage of rehabilitation.

Aim: The objective of the present study was to substantiate the necessity and validity of the health resort-based treatment as an integral part of the third stage of medical rehabilitation.