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N -> Sn-Coordinated Stannaoxidoborates Containing a SnB4O6 Unit
Authors: Mairychová Barbora | Kityk I. V. | Maciag Artur | Bureš Filip | Klikar Milan | Růžička Aleš | Dostál Libor | Jambor Roman
Year: 2016
Type of publication: článek v odborném periodiku
Name of source: Inorganic Chemistry
Publisher name: American Chemical Society
Place: Washington
Page from-to: 1587-1594
Titles:
Language Name Abstract Keywords
cze N -> Sn-koordinované stannaoxidoboráty obsahující SnB4O6 jednotku Byla popsána syntéza nových N -> Sn-koordinovaných stannaoxidoborátů H[LSnB4O6R4] = [2,6-(Me2NCH2)C6H3](-) a R = Ph (6), 4-Br-Ph (7), 3,S-(CF3)2-Ph (8), and 4-CHO-Ph (9)} obsahujících nesymetrickoui SnB4O6 jednotku. Sloučeniny 6-9 jsou novými deriváty pentaborátů [B5O6R4](-) , ve který je centrální atom boru substituován atomem cínu. Látky byly charakterizovány elementární analýzou, metodou electrospray ionization mass spektrometry, NMR spektroskopií a v případě derivátů 6-8 také rentgenostrukturní analýzou. nelineární optické vlastnosti; vysokotlaká příprava; krystalová struktura
eng N -> Sn-Coordinated Stannaoxidoborates Containing a SnB4O6 Unit We report here the synthesis of new N -> Sn-coordinated stannaoxidoborates H[LSnB4O6R4] = [2,6-(Me2NCH2)C6H3](-) and R = Ph (6), 4-Br-Ph (7), 3,S-(CF3)2-Ph (8), and 4-CHO-Ph (9)} containing a nonsymmetric SnB4O6 unit. Compounds 6-9 represent new derivatives of the pentaborates [B5O6R4](-) in which the central boron is substituted by a tin atom. Compounds 6-9 were characterized by means of elemental analysis, electrospray ionization mass spectrometry, and NMR spectroscopy and in the case of 6-8 also by single-crystal X-ray diffraction analysis. The structures of N -> Sn-coordinated stannaoxidoborates 6-8 consist of a spirobicyclic arrangement, with two six-membered SnB2O3 rings at the tin atom providing the new stannaoxidoborate [LSnB4O6R4](-) motif; which is compensated for by the proton atom coordinated to the Me2N group of the ligand L. The linear and thermal properties of 6-9 were studied with the help of electronic absorption spectra and differential scanning calorimetry. In addition, the presence of the nonsymmetric stannaoxidoborate SnB4O6 unit in 6, 7, and 9 prompted us to investigate their second-order nonlinear-optical properties. initio structure determination; nonlinear-optical properties; high-pressure preparation; sharing bo4 tetrahedra; bond covalent radii; crystal-structure; arylboronic acids; open-framework; structural-characterization; o,c,o-chelating ligands

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