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Coordination geometries and cooperative ordering effects in copper(II) complexes with tridentate Schiff base dianions—VI Structure and EPR spectra of (imidazole) (N-salicylidene-beta-alaninato)copper(II)

Autor: C. Friebel, Gustav Plesch, V. Kettmann, O. Švajlenová, J. Siv́y

Publikováno v: Polyhedron. 17:539-545

The crystal and molecular structure of (if(imidazole>)(N->salicylidene-β-alaninato)copper(II), monoclinic, space group C/2c, was solved by a single crystal X-ray structure analysis and refined to R = 0.0577 for 1286 observed reflections. The coordin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e1f1558124933280673f3ffe576cf048
https://doi.org/10.1016/s0277-5387(97)00337-9

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Coordination geometries and cooperative ordering effects in copper(II) complexes with tridentate Schiff base dianosis IV1. EPR monocrystal investigation of dipotassium-bis[(μ-isocyanato-N,O)-{N-salicylidene-(R,S)-α-alaninato}]dicuprate(II)

Autor: Gustav Plesch, Juraj Krätsmar-Smogrovic, C. Friebel, O. Švajlenová, V. Kettmann

Publikováno v: Inorganica Chimica Acta. 254:273-276

Some aspects of the crystal structure of dipotassium-bis[(μ-isocyanato-N,O)-{N-salicylidene-(R,S)-α-alaninato}](dicuprate(II), K2[Cu2{sal-R,S-ala}2(μ-NCO)2], necessary for the interpretation of EPR monocrystal spectra are reported The crystal stru

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::73291bc2bbbbc3c082612f8972d5fc01
https://doi.org/10.1016/s0020-1693(96)05171-7

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Oxyacanthine

Autor: J. Sivý, V. Kettmann, D. Kostálová, V. Vrábel

Publikováno v: Acta Crystallographica Section C Crystal Structure Communications. 52:1479-1482

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ab605db4cc5dc6e128531a3cf98de6c4
https://doi.org/10.1107/s0108270195015927

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9,9'-Thiobis(1,2,3,4,7,8-hexahydro-7-methyl-6H-pyrimido[1,6-a]pyrimidine-6,8-dione)

Autor: V. Kettmann, A. Rybár, A. Bozóová

Publikováno v: Acta Crystallographica Section C Crystal Structure Communications. 51:1861-1864

The structure determination of C 16 H 20 N 6 O 4 S, has shown that the molecule consists of two fused-ring systems joined by an S atom. Each ring system is nearly planar except for one sp 3 C atom. The mean S-C distance [1.730 (3) A] represents a bon

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d237aa4433ee1708eb30eb3a5f751515
https://doi.org/10.1107/s0108270194000090

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On the Mechanism of Metabolic Reactions of Amino Acids Catalyzed by Vitamin B6 and Related Aldehydes

Autor: V. Kettmann, J. Sivý, Juraj Krätsmar-Smogrovic

Publikováno v: Zeitschrift für Naturforschung C. 49:571-578

The crystal structure of [(N-salicylidene-ᴅ,ʟ-glutamato)(pyridine)]copper(II), a model for vitamin B6-amino acid-related metal complexes, has been determined by an X-ray analysis. A close examination of the structural data on this and other relate

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a90232418b3f34b09de814ecc7c2e66a
https://doi.org/10.1515/znc-1994-9-1006

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Bis(1,10-phenanthroline)copper(II)-μ-cyano-cyano(1,10-phenanthroline)copper(I) thiocyanate dihydrate

Autor: Ivan Potočňák, M. Dunaj-Jurčo, M. Kabešová, Dušan Mikloš, V. Kettmann

Publikováno v: Acta Crystallographica Section C Crystal Structure Communications. 50:380-383

By reaction of Cu(NO 3 ) 2 , NH 4 OH, phen (1,10-phenanthroline), KSCN and KCN in the molar ratio 1:40:2:1:1 in a water-ethanol solution a new mixed-valence complex, μ-cyano-1κN:2κC-cyano-2κN-tris(1,10-phenanthroline)-1κ 4 N,N';2k 2 N,N'-dicoppe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::30eda392f4ebc197b91d936e190aa120
https://doi.org/10.1107/s0108270193008327

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Structure of a mixed-valence copper complex with 1,10-phenanthroline and pseudohalogenide ligands

Autor: Ivana Císařová, M. Dunaj-Jurčo, M. Kabešová, V. Kettmann, D. Mikloš

Publikováno v: Acta Crystallographica Section C Crystal Structure Communications. 49:1476-1479

The reaction of Cu(NO 3 ) 2 , NH 4 OH, 1,10-phenanthroline (phen), KSCN and KSeCN in the molar ratio 1:10:2:2:2 in a water-ethanol solution gives a new mixed-valence compound, μ-cyano-1κN:2κC-(seleno,thio)cyanato-2κN-tris(1,10-phenanthroline)-1κ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::581eabf74caf19dac8b2abd69e3e2d6b
https://doi.org/10.1107/s0108270193000745

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Mixed-valence CuI–CuII complexes. Structure of cyanobis(1,10-phenanthroline)copper(II) bis(cyano)(1,10-phenanthroline)cuprate(I) pentahydrate

Autor: M. Kabešová, M. Dunaj-Jurčo, Ivan Potočňák, Dušan Mikloš, V. Kettmann, J. Cíbik

Publikováno v: Acta Crystallographica Section C Crystal Structure Communications. 49:1479-1482

Reaction of Cu(NO 3 ) 2 , NH 4 OH, phen (1,10-phenanthroline) and KCN in the molar ratio 1:40:2:2 in water-ethanol solution gives a new mixed-valence complex of composition Cu 2 (phen) 3 (CN) 3.5 H 2 O. X-ray structure analysis reveals the compositio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::da545a154bcf63b77745e025afdba621
https://doi.org/10.1107/s0108270193001775

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