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Exploration of the electrophoretic behaviour of borane cluster anions and of the capability of capillary electrophoresis to separate them chirally
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SYSNO ASEP 0162500 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Exploration of the electrophoretic behaviour of borane cluster anions and of the capability of capillary electrophoresis to separate them chirally Author(s) Slavíček, Viktor (UIACH-O)
Grüner, Bohumír (UACH-T) RID, SAI, ORCID
Vespalec, Radim (UIACH-O)Source Title Journal of Chromatography A. - : Elsevier - ISSN 0021-9673
Roč. 984, č. 1 (2003), s. 121-134Number of pages 14 s. Language eng - English Country NL - Netherlands Keywords capillary electrophoresis ; cluster boranes ; chiral separations Subject RIV CB - Analytical Chemistry, Separation R&D Projects GA203/99/0044 GA ČR - Czech Science Foundation (CSF) GA203/00/1042 GA ČR - Czech Science Foundation (CSF) GA203/02/0023 GA ČR - Czech Science Foundation (CSF) IAA4031703 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z4032918 - UACH-T AV0Z4031919 - UIACH-O Annotation Electrophoretic behaviour of anionic boron cluster compounds differs from that of organic anions. One of reasons for it is high hydrophobicity of the compounds even if they are charged. Polar organic solvent like acetonitrile or methanol added to a buffered background electrolyte secures solubility of boron compounds. The solvent acts also as a competing agent, which weakens too strong interactions of the compounds with the hydrophobic cavity of beta-cyclodextrin used as a chiral selector. Chiral discrimination was obtrained for all investigated anions, which belonged to four different structural types of anionic boron cluster compounds. This demonstrates that capillary electrophoresis is promising technique for the development of methods for routine analytical chiral separations of anionic boron cluster compounds. Workplace Institute of Analytical Chemistry Contact Iveta Drobníková, drobnikova@iach.cz, Tel.: 532 290 234 Year of Publishing 2004
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