The effect of the central ion of tris-beta-diketonato complexes of transition metals on their retention on thin layers of silica gel
Abstract
The effect of the central ion of tris-beta-diketonato complexes of transition metals on their hR(F) values in thin layer chromatography (TLC) on silica gel has been investigated for 24 Co(III), Cr(III), and Ru(III) complexes of the types [M(acac)(3-n)(phacphac)(n)] and [M(acac)(3-n)(phacphSac)(n)], where n = 0-3, and with four complexes of the type [M(acac)(3)], where M = Sc(III), Y(III), Nd(III), or La(III), acac is the 2,4-pentanedionato ion, phacphac is the 1,3-diphenyl-1,3-propanedionato ion, and phacphSac is the 3-mercapto-1,3-diphenylprop-2-en-1-one ion. One- and two-component nonaqueous mobile phases were used for the chromatographic separations. The dependence of retention data on the length of ionic radius and on En/r(i) value is discussed. The mobility (hR(F) values) of the tris(acetylacetonato) complexes on thin layers of silica gel is directly proportional to the ionic radius of the central ion. On the basis of the results obtained, adsorption was assumed to be the dominant... mechanism of separation under the chromatographic conditions used.
Keywords:
central ion / beta-diketonato complexes / transition metals / silica gel TLCSource:
Journal of Planar Chromatography: Modern TLC / Thin Layer Chromatography, 2002, 15, 4, 263-267Publisher:
- Research Inst Medicinal Plants, Budakalasz
DOI: 10.1556/JPC.15.2002.4.4
ISSN: 0933-4173
WoS: 000178677900005
Scopus: 2-s2.0-0036659850
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Institution/Community
Hemijski fakultet / Faculty of ChemistryTY - JOUR AU - Baošić, Rada AU - Milojković-Opsenica, Dušanka AU - Tešić, Živoslav Lj. PY - 2002 UR - https://cherry.chem.bg.ac.rs/handle/123456789/511 AB - The effect of the central ion of tris-beta-diketonato complexes of transition metals on their hR(F) values in thin layer chromatography (TLC) on silica gel has been investigated for 24 Co(III), Cr(III), and Ru(III) complexes of the types [M(acac)(3-n)(phacphac)(n)] and [M(acac)(3-n)(phacphSac)(n)], where n = 0-3, and with four complexes of the type [M(acac)(3)], where M = Sc(III), Y(III), Nd(III), or La(III), acac is the 2,4-pentanedionato ion, phacphac is the 1,3-diphenyl-1,3-propanedionato ion, and phacphSac is the 3-mercapto-1,3-diphenylprop-2-en-1-one ion. One- and two-component nonaqueous mobile phases were used for the chromatographic separations. The dependence of retention data on the length of ionic radius and on En/r(i) value is discussed. The mobility (hR(F) values) of the tris(acetylacetonato) complexes on thin layers of silica gel is directly proportional to the ionic radius of the central ion. On the basis of the results obtained, adsorption was assumed to be the dominant mechanism of separation under the chromatographic conditions used. PB - Research Inst Medicinal Plants, Budakalasz T2 - Journal of Planar Chromatography: Modern TLC / Thin Layer Chromatography T1 - The effect of the central ion of tris-beta-diketonato complexes of transition metals on their retention on thin layers of silica gel VL - 15 IS - 4 SP - 263 EP - 267 DO - 10.1556/JPC.15.2002.4.4 ER -
@article{ author = "Baošić, Rada and Milojković-Opsenica, Dušanka and Tešić, Živoslav Lj.", year = "2002", abstract = "The effect of the central ion of tris-beta-diketonato complexes of transition metals on their hR(F) values in thin layer chromatography (TLC) on silica gel has been investigated for 24 Co(III), Cr(III), and Ru(III) complexes of the types [M(acac)(3-n)(phacphac)(n)] and [M(acac)(3-n)(phacphSac)(n)], where n = 0-3, and with four complexes of the type [M(acac)(3)], where M = Sc(III), Y(III), Nd(III), or La(III), acac is the 2,4-pentanedionato ion, phacphac is the 1,3-diphenyl-1,3-propanedionato ion, and phacphSac is the 3-mercapto-1,3-diphenylprop-2-en-1-one ion. One- and two-component nonaqueous mobile phases were used for the chromatographic separations. The dependence of retention data on the length of ionic radius and on En/r(i) value is discussed. The mobility (hR(F) values) of the tris(acetylacetonato) complexes on thin layers of silica gel is directly proportional to the ionic radius of the central ion. On the basis of the results obtained, adsorption was assumed to be the dominant mechanism of separation under the chromatographic conditions used.", publisher = "Research Inst Medicinal Plants, Budakalasz", journal = "Journal of Planar Chromatography: Modern TLC / Thin Layer Chromatography", title = "The effect of the central ion of tris-beta-diketonato complexes of transition metals on their retention on thin layers of silica gel", volume = "15", number = "4", pages = "263-267", doi = "10.1556/JPC.15.2002.4.4" }
Baošić, R., Milojković-Opsenica, D.,& Tešić, Ž. Lj.. (2002). The effect of the central ion of tris-beta-diketonato complexes of transition metals on their retention on thin layers of silica gel. in Journal of Planar Chromatography: Modern TLC / Thin Layer Chromatography Research Inst Medicinal Plants, Budakalasz., 15(4), 263-267. https://doi.org/10.1556/JPC.15.2002.4.4
Baošić R, Milojković-Opsenica D, Tešić ŽL. The effect of the central ion of tris-beta-diketonato complexes of transition metals on their retention on thin layers of silica gel. in Journal of Planar Chromatography: Modern TLC / Thin Layer Chromatography. 2002;15(4):263-267. doi:10.1556/JPC.15.2002.4.4 .
Baošić, Rada, Milojković-Opsenica, Dušanka, Tešić, Živoslav Lj., "The effect of the central ion of tris-beta-diketonato complexes of transition metals on their retention on thin layers of silica gel" in Journal of Planar Chromatography: Modern TLC / Thin Layer Chromatography, 15, no. 4 (2002):263-267, https://doi.org/10.1556/JPC.15.2002.4.4 . .