• Approaching the kinetic inertness of macrocyclic gadolinium(III)-based MRI contrast agents with highly rigid open-chain derivatives 

      Tircsó, Gyula; Regueiro-Figueroa, Martín; Nagy, Viktória; Garda, Zoltán; Garai, Tamás; Kálmán, Ferenc; Esteban-Gómez, David; Tóth, Éva; Platas-Iglesias, Carlos (Wiley, 2016-01-08)
      [Abstract] A highly rigid open-chain octadentate ligand (H4cddadpa) containing a diaminocylohexane unit to replace the ethylenediamine bridge of 6,6′-[(ethane-1,2 diylbis{(carboxymethyl)azanediyl})bis(methylene)] dipicolinic ...
    • Definition of the labile capping bond effect in lanthanide complexes 

      Rodríguez-Rodríguez, Aurora; Regueiro-Figueroa, Martín; Esteban-Gómez, David; Rodríguez-Blas, Teresa; Patinec, Véronique; Tripier, Raphaël; Tircsó, Gyula; Carniato, Fabio; Botta, Mauro; Platas-Iglesias, Carlos (Wiley, 2017-01-23)
      [Abstract] Two macrocyclic ligands containing a cyclen unit, a methyl group, a picolinate arm, and two acetate pendant arms attached to two nitrogen atoms of the macrocycle either in trans (1,7-H3Medo2 ampa = 2,2′-(7-((6 ...
    • Expanding the Ligand Classes Used for Mn(II) Complexation: Oxa-aza Macrocycles Make the Difference 

      Kálmán, Ferenc; Nagy, Viktória; Uzal-Varela, Rocío; Pérez-Lourido, Paulo; Esteban-Gómez, David; Garda, Zoltán; Pota, Kristof; Mezei, Roland; Pallier, Agnès; Tóth, Éva; Platas-Iglesias, Carlos; Tircsó, Gyula (MDPI, 2021-03-10)
      [Abstract] We report two macrocyclic ligands based on a 1,7-diaza-12-crown-4 platform functionalized with acetate (𝑡O2DO2A²⁻) or piperidineacetamide (𝑡O2DO2AMᴾⁱᵖ) pendant arms and a detailed characterization of the ...
    • Highly stable complexes of divalent metal ions (Mg2+, Ca2+, Cu2+, Zn2+, Cd2+, and Pb2+) with a dota‐like ligand containing a picolinate pendant 

      Regueiro-Figueroa, Martín; Ruscsák, Erika; Fra, Laura; Tircsó, Gyula; Tóth, Imre; Blas, Andrés de; Rodríguez-Blas, Teresa; Platas-Iglesias, Carlos; Esteban-Gómez, David (Wiley, 2014-12)
      [Abstract] The stability constants of complexes of the macrocyclic ligand do3a‐pic4– (H4do3a‐pic = 2,2′,2″‐{10‐[(6‐carboxypyridin‐2‐yl)methyl]‐1,4,7,10‐tetraazacyclododecane 1,4,7‐triyl}triacetic acid) with several divalent ...
    • Rigidified Derivative of the Non-macrocyclic Ligand H₄OCTAPA for Stable Lanthanide(III) Complexation 

      Lucio Martínez, Fátima; Garda, Zoltán; Váradi, Balázs; Kálmán, Ferenc; Esteban-Gómez, David; Tóth, Éva; Tircsó, Gyula; Platas-Iglesias, Carlos (American Chemical Society, 2022-03-11)
      [Abstract] The stability constants of lanthanide complexes with the potentially octadentate ligand CHXOCTAPA4–, which contains a rigid 1,2-diaminocyclohexane scaffold functionalized with two acetate and two picolinate ...
    • Stable Mn2+, Cu2+ and Ln3+ complexes with cyclen-based ligands functionalized with picolinate pendant arms 

      Rodríguez-Rodríguez, Aurora; Garda, Zoltán; Ruscsák, Erika; Esteban-Gómez, David; Blas, Andrés de; Rodríguez-Blas, Teresa; Lima, Luís M. P.; Beyler, Maryline; Tripier, Raphaël; Tircsó, Gyula; Platas-Iglesias, Carlos (Royal Society of Chemistry, 2015-01-20)
      [Abstract] In this study we present the results of the equilibrium, dissociation kinetics, DFT and X - ray crystallographic studies performed on the complexes of metal ions of biomedical importance (Mn 2+ , Cu 2+ and ...
    • The role of the capping bond effect on pyclen natY3+/90Y3+ chelates: full control of the regiospecific N-functionalization makes the difference 

      Le Fur, Mariane; Beyler, Maryline; Molnár, Enikö; Fougère, Olivier; Esteban-Gómez, David; Tircsó, Gyula; Platas-Iglesias, Carlos; Lepareur, Nicolas; Rousseaux, Olivier; Tripier, Raphaël (Royal Society of Chemistry, 2017-09-07)
      [Abstract] Thanks to a smart regiospecific N-functionalization, a pyclen based ligand bearing one picolinate and two acetate arms organized in a dissymmetric manner was synthesized for Y3+ complexation, and compared to its ...