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pro vyhledávání: '"Thomas A. Kaden"'
Autor:
Thomas A. Kaden
Publikováno v:
CHIMIA, Vol 54, Iss 10 (2000)
The introduction of side chains into tetraazamacrocycles allows the preparation of metal complexes with functional properties. On the one hand donor groups at the end of the side chain can be used to control the coordination geometry of the metal ion
Externí odkaz:
https://doaj.org/article/41c472f75c22498d9f5af46f083e892b
Autor:
Thomas A. Kaden
Publikováno v:
CHIMIA, Vol 54, Iss 1-2 (2000)
Three examples are used to show how the coordination chemist can develop macrocyclic ligands for labeling monoclonal antibodies used in nuclear medicine for tumor diagnosis and therapy.
Externí odkaz:
https://doaj.org/article/6949c9e843544d60870917cbafb6ef21
Publikováno v:
Dalton Trans.. :218-233
A series of pyrazole and triazole based dinucleating ligands have been synthesized and their complexation potential for metal ions, which exhibit square planar coordination geometry has been studied. In the case of Cu(2+) the complexation equilibria
Autor:
Liselotte Siegfried, Thomas A. Kaden
Publikováno v:
Helvetica Chimica Acta. 88:380-390
The kinetics and the mechanism of the cyanide-induced demetallation of a series of Ni2+ complexes with macrocyclic ligands of different ring size (12- to 14-membered; see 1–4) and steric constraints was studied. Although the rates differ by almost
Autor:
Thomas A. Kaden
Publikováno v:
Journal of Inclusion Phenomena. 49:3-9
Using 1,4,8,11-tetraazacyclotetradecane (cyclam) and tris(2-aminoethyl)amine (tren) as building blocks a ditopic (2) and a polytopic (3) ligand were prepared. Their complexation potential towards Cu2+ and Ni2+ was studied by potentiometric and spectr
Autor:
Christophe Vichard, Thomas A. Kaden
Publikováno v:
Inorganica Chimica Acta. 357:2285-2293
The dinuclear Ni 2+ and Zn 2+ complexes of 1,1 ′ -[(1H-pyrazole-3,5-diyl)bismethylene]-bis(octahydro-1H-1,4,7-triazonine) induce phosphate diester hydrolysis in biological relevant substrates such as thymidine 5 ′ -monophosphate 4-nitrophenyleste
Publikováno v:
Inorganica Chimica Acta. 348:129-134
The copper(II) complex with 1,4,8-trimethyl-11-(2-thioethyl)-1,4,8,11-tetraazacyclotetradecane was adsorbed on the surface of glassy carbon (GCE) and gold electrodes using the self-assembly method. More stable coverage of the electrode was obtained u
Publikováno v:
Dalton Transactions. :1292-1298
The two ligands L1 and L2, consisting of two 1,4,7-triazacyclononane rings bridged by a pyrazole or a triazole group, form with Cu2+, Ni2+ and Zn2+ a series of mononuclear [MLHn](n + 2)+ (n = −3, −2, −1, 0, 1, 2) and dinuclear species [M2LHm](m
Autor:
P. August Schubiger, Roger Alberto, Jan M. Baumeister, Thomas A. Kaden, Kirstin Ortner, Bernhard Spingler
Publikováno v:
Journal of the Chemical Society, Dalton Transactions. :4143-4151
A series of NS3-open chain and cage ligands were synthesised and their complexation behaviour towards Ag(I) and Cu(I) studied. Crystal structures show that all open chain ligands form complexes in which the four donor atoms of the ligands coordinate
Autor:
Christophe Vichard, Thomas A. Kaden
Publikováno v:
Inorganica Chimica Acta. 337:173-180
The kinetics and mechanism of the hydrolysis of bis(4-nitrophenyl)phosphate and (4-nitrophenyl)phenylphosphonate were studied in the presence of the dinuclear Ni 2+ , Cu 2+ , and Zn 2+ complexes of 1,1-[(1H-pyrazole-3,5-diyl)bis(methylene)]bis(octahy