Zobrazeno 1 - 10 of 27 pro vyhledávání: '"P.N. Radivojša"'
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Synthesis, geometrical and absolute configuration of the tris(S-arginine)cobalt(III) trinitrate isomers and synthesis and molecular structure of (-)589-anti(N)-Δ-cis(N),cis(O)-Λ-cis(N),cis(O)-di-μ-hydroxo-tetrakis(S-arginine)dicobalt(III) tetranitrate tetrahydrate
Autor: M.B. Ćelap, P.N. Radivojša, Kazuo Saito, K. Toriumi, Nenad Juranić
Publikováno v: Polyhedron. 10:2717-2724
In a direct synthesis reaction of the tris(aminocarboxylato)cobalt(III) complexes with S-arginine all four theoretically possible tris(S-arginine)cobalt(III) diastereomers were obtained as tripositive complex ions. Besides, one out of 24 theoreticall
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a0192186622d0170bc8a74dd60ae01cf
https://doi.org/10.1016/s0277-5387(00)86172-0
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3
Phenol effect in paper chromatography of metal complexes
Autor: Ž.Lj. Tešić, P.N. Radivojša, M.B. Ćelap, Tomislav J. Janjić, M.J. Malinar
Publikováno v: Journal of Chromatography A. 331:273-283
The RF values of 78 cobalt(III) and platinum(II) complexes have been determined using solvent systems containing phenols. When the complexes were chromatographed with solvent systems containing mono- or polyhydric phenols, the trans isomers were foun
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5cd743cc73077c003610e2a1cd22daf1
https://doi.org/10.1016/0021-9673(85)80033-9
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4
Non additivity of ligand effects on 59Co NMR chemical shifts in Co(III) complex compounds
Autor: M.J. Malinar, P.N. Radivojša, M. B. Celap, N. Juranić, D. Vucelic
Publikováno v: Spectrochimica Acta Part A: Molecular Spectroscopy. 35:997-1002
59Co chemical shift in a number of Co(III) complexes of the type CoA6-xBx(x = 0–6, A and B denote corresponding ligators) containing mono- and/or bidentate ligands, was measured. In almost all cases studied it was found that chemical shift appear a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bcf53869a2ccd5259c44386586f053f9
https://doi.org/10.1016/0584-8539(79)80026-4
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5
Effect of the composition and structure of cobalt(III) complexes on their RF values obtained by partition paper chromatography
Autor: Tomislav J. Janjić, M.J. Malinar, M.B. Ćelap, Sofija Sarić, P.N. Radivojša
Publikováno v: Journal of Chromatography A. 139:45-49
R F values of 41 cobalt(III) complexes were determined by partition paper chromatography using 15 solvent systems. It was established that cis -NO 2 isomers always exhibit higher R F values than the corresponding trans -isomers, even when a complex h
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0acf8b5c8e5005f5666983da08278274
https://doi.org/10.1016/s0021-9673(01)84124-8
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7
The 3C and 59Co nuclear magnetic resonance study of mixed Co(III) complexes containing glycinato ligand
Autor: D. Vucelic, Nenad Juranić, M.B. Ćelap, P.N. Radivojša, M.J. Malinar
Publikováno v: Inorganica Chimica Acta. 25:229-232
The carbon-13 chemical shifts of coordinated bidentate glycinato ligand were measured in a series of seventeen mixed Co(III) complexes. A characteristic effect of transligand on the 13C chemical shifts of the methylene carbon of glycine was observed.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c00af1a299527077313a4a0aadd92c51
https://doi.org/10.1016/s0020-1693(00)95718-9
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8
Effect of the absolute configuration of cobalt(III) complexes on their chromatographic behaviour
Autor: M.B. Ćelap, Tomislav J. Janjić, M.J. Malinar Gordana Vučkovič, P.N. Radivojša
Publikováno v: Journal of Chromatography A. 249:65-79
Seventeen pairs of diastereomeric cobalt(III) complexes were subject to paper chromatography using ten multi-component solvent systems, and nineteen diastereomeric pairs were chromatographed on silica gel G and aluminium oxide G thin layers by the us
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https://doi.org/10.1016/s0021-9673(00)80233-2
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9
Natural abundance 15N nuclear magnetic resonance study of amino acids coordinated to cobalt(III)
Autor: R.L. Lichter, P.N. Radivojša, M.B. Ćelap, M.J. Malinar, N. Juranic
Publikováno v: Inorganica Chimica Acta. 62:131-133
15 N chemical shifts of cobalt(III) amino acid complexes of the type λ- cis (NO) 2 - trans (NH 2 [Co(NO) 2 ) 2 (Am) 2 ] +/- AmH = amino acid) have been determined at the natural-abundance level. Coordination with cobalt induces displacements of the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::df6b1f9d157fb044702fa33a9f5ca11a
https://doi.org/10.1016/s0020-1693(00)88491-1
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10
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