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Your search keyword '"Mainicheva, Ekaterina A."' showing total 4 results
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4 results on '"Mainicheva, Ekaterina A."'

1. Synthesis and crystal structure of unprecedented oxo/hydroxo-bridged polynuclear gallium(III) aqua complexes

Author

Gerasko, Olga A., Mainicheva Ekaterina A., Naumov, Dmitry Yu., Kuratieva, Natalia V., Sokolov, Maxim N., and Fedin, Vladimir P.

Subjects
Gallium compounds -- Chemical properties, Gallium compounds -- Structure, Water -- Chemical properties, Chemical synthesis -- Research, Crystals -- Structure, Crystals -- Analysis, Chemistry
Abstract

The synthesis and structural characterization of two new gallium polynuclear aqua complexes, the supramolecular compound of cucurbit[6]uril with gallium aqua complex containing 32 metal atoms [Ga32(mu4-O)12(mu3-O)8(mu2-O)7(mu-OH)39(H2O)20](PyHsubsetC36H36N24O12)3(NO3)6.53h2O and the tridecanuclear gallium aqua complex [Ga13(mu3-OH)6(mu2-OH)18(H2O)24](NO3)15.12H2O are reported. Two modes of nucleation exist when Ga(sub 3+(aq) is hydrolyzed, one around the tetrahedral GaO4 units and the other around the octahedral GaO6 units.

Published
2005

2. Sandwich-type tetranuclear lanthanide complexes with cucurbit[6]uril: from molecular compounds to coordination polymers

Author

Gerasko, Olga A., Mainicheva, Ekaterina A., Naumova, Marina I., Neumaier, Marco, Kappes, Manfred M., Lebedkin, Sergey, Fenske, Dieter, and Fedin, Vladimir P.

Subjects
Organometallic compounds -- Structure, Organometallic compounds -- Chemical properties, Organometallic compounds -- Thermal properties, Pyridine -- Chemical properties, Rare earth metals -- Chemical properties, Rare earth metals -- Thermal properties, Chemistry
Abstract

The hydrothermal conditions from aqueous solutions of lanthanide(III) bromides, CB[6], and 4-cyanopyridine were employed to synthesize the sandwich-type tetranuclear lanthanide complexes with cucurbit[6]uril. The chainlike crystal structure of polymers (Ln = La, Pr, and Dy) are constituted by the sandwich complexes linked via the coordination of IN nitrogen atoms to the silver atoms and could be used as precursors for the synthesis of lanthanide-silver heterometallic coordination polymers.

Published
2008

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