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Hamon N, Godec L, Jourdain E, Lucio-Martínez F, Platas-Iglesias C, Beyler M, Charbonnière LJ, Tripier R. Synthesis and Photophysical Properties of Lanthanide Pyridinylphosphonic Tacn and Pyclen Derivatives: From Mononuclear Complexes to Supramolecular Heteronuclear Assemblies. Inorg Chem 2023; 62:18940-18954. [PMID: 37935007 DOI: 10.1021/acs.inorgchem.3c02522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
Synthetic methodologies were developed to achieve the preparation of ligands L1 and L2 consisting of tacn- and pyclen-based chelators decorated with pyridinylphosphonic pendant arms combined with ethylpicolinamide or acetate coordinating functions, respectively. Phosphonate functions have been selected for their high affinity toward Ln3+ ions compared to their carboxylated counterparts and for their steric hindrance that favors the formation of less-hydrated complexes. Thanks to regiospecific N-functionalization of the macrocyclic backbones, the two ligands were isolated with good yields and implicated in a comprehensive photophysical study for the complexation of Eu3+, Tb3+, and Yb3+. The coordination behavior of L1 and L2 with these cations has been first investigated by means of a combination of UV-vis absorption spectroscopy, steady-state and time-resolved luminescence spectroscopy, and 1H and 31P NMR titration experiments. Structural characterization in solution was assessed by NMR spectroscopy, corroborated by theoretical calculations. Spectroscopic characterization of the Ln3+ complexes of L1 and L2 was done in water and D2O and showed the effective sensitization of the lanthanide metal-centered emission spectra, each exhibiting typical lanthanide emission bands. The results obtained for the phosphonated ligands were compared with those reported previously for the corresponding carboxylated analogues.
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Affiliation(s)
- Nadège Hamon
- Univ Brest, UMR CNRS 6521 CEMCA, 6 Avenue Victor Le Gorgeu, Brest 29200, France
| | - Léna Godec
- Equipe de Synthèse pour l'analyse, Institut Pluridisciplinaire Hubert Curien, UMR 7178, CNRS/Université de Strasbourg, ECPM, 25 rue Becquerel, Strasbourg 67087, Cedex 2, France
| | - Elsa Jourdain
- Equipe de Synthèse pour l'analyse, Institut Pluridisciplinaire Hubert Curien, UMR 7178, CNRS/Université de Strasbourg, ECPM, 25 rue Becquerel, Strasbourg 67087, Cedex 2, France
| | - Fátima Lucio-Martínez
- Centro de Investigacións Científicas Avanzadas (CICA) and Departamento de Química, Universidade da Coruña, Campus da Zapateira-Rúa da Fraga 10, A Coruña 15008, Spain
| | - Carlos Platas-Iglesias
- Centro de Investigacións Científicas Avanzadas (CICA) and Departamento de Química, Universidade da Coruña, Campus da Zapateira-Rúa da Fraga 10, A Coruña 15008, Spain
| | - Maryline Beyler
- Univ Brest, UMR CNRS 6521 CEMCA, 6 Avenue Victor Le Gorgeu, Brest 29200, France
| | - Loïc J Charbonnière
- Equipe de Synthèse pour l'analyse, Institut Pluridisciplinaire Hubert Curien, UMR 7178, CNRS/Université de Strasbourg, ECPM, 25 rue Becquerel, Strasbourg 67087, Cedex 2, France
| | - Raphaël Tripier
- Univ Brest, UMR CNRS 6521 CEMCA, 6 Avenue Victor Le Gorgeu, Brest 29200, France
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2
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Nizou G, Molnár E, Hamon N, Kálmán FK, Fougère O, Rousseaux O, Esteban-Gòmez D, Platas-Iglesias C, Beyler M, Tircsó G, Tripier R. Pyclen-Based Ligands Bearing Pendant Picolinate Arms for Gadolinium Complexation. Inorg Chem 2021; 60:2390-2405. [PMID: 33486958 DOI: 10.1021/acs.inorgchem.0c03277] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We report the synthesis of two pyclen-based regioisomer ligands (pyclen = 3,6,9,15-tetraazabicyclo[9.3.1]pentadeca-1(15),11,13-triene) functionalized with picolinic acid pendant arms either at positions 3,9-pc2pa (L5) or 3,6-pc2pa (L6) of the macrocyclic fragment. The ligands were prepared by the regiospecific protection of one of the amine nitrogen atoms of the macrocycle using Boc and Alloc protecting groups, respectively. The X-ray structure of the Gd(III) complex of L5 contains trinuclear [(GdL5)3(H2O)3]3+ entities in which the monomeric units are joined by μ2-η1:η1-carboxylate groups. However, the 1H and 89Y NMR spectra of its Y(III) analogue support the formation of monomeric complexes in solution. The Tb(III) complexes are highly luminescent, with emission quantum yields of up to 28% for [TbL5]+. The luminescence lifetimes recorded in H2O and D2O solutions indicate the presence of a water molecule coordinated to the metal ion, as also evidenced by the 1H relaxivities measured for the Gd(III) analogues. The Gd(III) complexes present very different exchange rates of the coordinated water molecule (kex298 = 87.1 × 106 and 1.06 × 106 s-1 for [GdL5]+ and [GdL6]+, respectively). The very high water exchange rate of [GdL5]+ is associated with the steric hindrance originating from the coordination of the ligand around the water binding site, which favors a dissociatively activated water exchange process. The Gd(III) complexes present rather high thermodynamic stabilities (log KGdL = 20.47 and 19.77 for [GdL5]+ and [GdL6]+, respectively). Furthermore, these complexes are remarkably inert with respect to their acid-assisted dissociation, in particular the complex of L5.
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Affiliation(s)
- Gwladys Nizou
- Univ. Brest, UMR-CNRS 6521 CEMCA, 6 avenue Victor le Gorgeu, 29238 Brest, France
| | - Enikő Molnár
- Department of Physical Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary
| | - Nadège Hamon
- Univ. Brest, UMR-CNRS 6521 CEMCA, 6 avenue Victor le Gorgeu, 29238 Brest, France
| | - Ferenc Krisztián Kálmán
- Department of Physical Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary
| | - Olivier Fougère
- Groupe Guerbet, Centre de Recherche d'Aulnay-sous-Bois, BP 57400, 95943 Roissy CdG Cedex, France
| | - Olivier Rousseaux
- Groupe Guerbet, Centre de Recherche d'Aulnay-sous-Bois, BP 57400, 95943 Roissy CdG Cedex, France
| | - David Esteban-Gòmez
- Centro de Investigacións Científicas Avanzadas (CICA) and Departamento de Química, Universidade da Coruña, Campus da Zapateira-Rúa da Fraga 10, 15008 A Coruña, Spain
| | - Carlos Platas-Iglesias
- Centro de Investigacións Científicas Avanzadas (CICA) and Departamento de Química, Universidade da Coruña, Campus da Zapateira-Rúa da Fraga 10, 15008 A Coruña, Spain
| | - Maryline Beyler
- Univ. Brest, UMR-CNRS 6521 CEMCA, 6 avenue Victor le Gorgeu, 29238 Brest, France
| | - Gyula Tircsó
- Department of Physical Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary
| | - Raphaël Tripier
- Univ. Brest, UMR-CNRS 6521 CEMCA, 6 avenue Victor le Gorgeu, 29238 Brest, France
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3
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Charpentier C, Salaam J, Nonat A, Carniato F, Jeannin O, Brandariz I, Esteban-Gomez D, Platas-Iglesias C, Charbonnière LJ, Botta M. pH-Dependent Hydration Change in a Gd-Based MRI Contrast Agent with a Phosphonated Ligand. Chemistry 2020; 26:5407-5418. [PMID: 31923335 DOI: 10.1002/chem.201904904] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 12/05/2019] [Indexed: 12/12/2022]
Abstract
The heptadentate ligand L was shown to form an extremely stable Gd complex at neutral pH with a pGd value of 18.4 at pH 7.4. The X-ray crystal structures of the complexes formed with Gd and Tb displayed two very different coordination behaviors being, respectively, octa- and nonacoordinated. The relaxometric properties of the Gd complex were studied by field-dependent relaxivity measurements at various temperatures and by 17 O NMR spectroscopy. The pH-dependence of the longitudinal relaxivity profile indicated large changes around neutral pH leading to a very large value of 10.1 mm-1 ⋅s-1 (60 MHz, 298 K) at pH 4.7. The changes were attributed to an increase of the hydration number from one water molecule in basic conditions to two at acidic pH. A similar trend was observed for the luminescence of the Eu complex, confirming the change in hydration state. DOSY experiments were performed on the Lu analogue, pointing to the absence of dimers in solution in the considered pH range. A breathing mode of the complex was postulated, which was further supported by 1 H and 31 P NMR spectroscopy of the Yb complex at varying pH and was finally modeled by DFT calculations.
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Affiliation(s)
- Cyrille Charpentier
- Equipe de Synthèse Pour l'Analyse (SynPA), Institut Pluridisciplinaire Hubert Curien, UMR 7178 CNRS/Université de Strasbourg, ECPM, 25 rue Becquerel, Bâtiment R1N0, 67087, Strasbourg Cedex 02, France
| | - Jérémy Salaam
- Equipe de Synthèse Pour l'Analyse (SynPA), Institut Pluridisciplinaire Hubert Curien, UMR 7178 CNRS/Université de Strasbourg, ECPM, 25 rue Becquerel, Bâtiment R1N0, 67087, Strasbourg Cedex 02, France
| | - Aline Nonat
- Equipe de Synthèse Pour l'Analyse (SynPA), Institut Pluridisciplinaire Hubert Curien, UMR 7178 CNRS/Université de Strasbourg, ECPM, 25 rue Becquerel, Bâtiment R1N0, 67087, Strasbourg Cedex 02, France
| | - Fabio Carniato
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Viale T. Michel 11, 15121, Alessandria, Italy
| | - Olivier Jeannin
- CNRS, ISCR-UMR6226, Université de Rennes, 35000, Rennes, France
| | - Isabel Brandariz
- Centro de Investigacións Científicas Avanzadas (CICA) and Departamento de Química, Universidade da Coruña, Campus da Zapateira-Rúa da Fraga 10, 15008, A Coruña, Spain
| | - David Esteban-Gomez
- Centro de Investigacións Científicas Avanzadas (CICA) and Departamento de Química, Universidade da Coruña, Campus da Zapateira-Rúa da Fraga 10, 15008, A Coruña, Spain
| | - Carlos Platas-Iglesias
- Centro de Investigacións Científicas Avanzadas (CICA) and Departamento de Química, Universidade da Coruña, Campus da Zapateira-Rúa da Fraga 10, 15008, A Coruña, Spain
| | - Loïc J Charbonnière
- Equipe de Synthèse Pour l'Analyse (SynPA), Institut Pluridisciplinaire Hubert Curien, UMR 7178 CNRS/Université de Strasbourg, ECPM, 25 rue Becquerel, Bâtiment R1N0, 67087, Strasbourg Cedex 02, France
| | - Mauro Botta
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Viale T. Michel 11, 15121, Alessandria, Italy
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4
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Panchenko PA, Zubenko AD, Chernikova EY, Fedorov YV, Pashanova AV, Karnoukhova VA, Fedyanin IV, Fedorova OA. Synthesis, structure and metal ion coordination of novel benzodiazamacrocyclic ligands bearing pyridyl and picolinate pendant side-arms. NEW J CHEM 2019. [DOI: 10.1039/c9nj03488a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Complex formation of benzodiazacrown ethers with heavy and transition metal ions was studied using NMR spectroscopy, potentiometry and X-ray crystallography.
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Affiliation(s)
- Pavel A. Panchenko
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences (INEOS RAS)
- Moscow
- Russia
- D. Mendeleev University of Chemical Technology of Russia
- Moscow
| | - Anastasia D. Zubenko
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences (INEOS RAS)
- Moscow
- Russia
| | - Ekaterina Y. Chernikova
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences (INEOS RAS)
- Moscow
- Russia
| | - Yuri V. Fedorov
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences (INEOS RAS)
- Moscow
- Russia
| | - Anna V. Pashanova
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences (INEOS RAS)
- Moscow
- Russia
- D. Mendeleev University of Chemical Technology of Russia
- Moscow
| | - Valentina A. Karnoukhova
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences (INEOS RAS)
- Moscow
- Russia
| | - Ivan V. Fedyanin
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences (INEOS RAS)
- Moscow
- Russia
- Plekhanov Russian University of Economics
- Moscow
| | - Olga A. Fedorova
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences (INEOS RAS)
- Moscow
- Russia
- D. Mendeleev University of Chemical Technology of Russia
- Moscow
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5
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Spreckelmeyer S, Ramogida CF, Rousseau J, Arane K, Bratanovic I, Colpo N, Jermilova U, Dias GM, Dude I, Jaraquemada-Peláez MDG, Bénard F, Schaffer P, Orvig C. p-NO 2-Bn-H 4neunpa and H 4neunpa-Trastuzumab: Bifunctional Chelator for Radiometalpharmaceuticals and 111In Immuno-Single Photon Emission Computed Tomography Imaging. Bioconjug Chem 2017; 28:2145-2159. [PMID: 28683198 DOI: 10.1021/acs.bioconjchem.7b00311] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Potentially nonadentate (N5O4) bifunctional chelator p-SCN-Bn-H4neunpa and its immunoconjugate H4neunpa-trastuzumab for 111In radiolabeling are synthesized. The ability of p-SCN-Bn-H4neunpa and H4neunpa-trastuzumab to quantitatively radiolabel 111InCl3 at an ambient temperature within 15 or 30 min, respectively, is presented. Thermodynamic stability determination with In3+, Bi3+, and La3+ resulted in high conditional stability constant (pM) values. In vitro human serum stability assays have demonstrated both 111In complexes to have high stability over 5 days. Mouse biodistribution of [111In][In(p-NO2-Bn-neunpa)]-, compared to that of [111In][In(p-NH2-Bn-CHX-A″-diethylenetriamine pentaacetic acid (DTPA))]2-, at 1, 4, and 24 h shows fast clearance of both complexes from the mice within 24 h. In a second mouse biodistribution study, the immunoconjugates 111In-neunpa-trastuzumab and 111In-CHX-A″-DTPA-trastuzumab demonstrate a similar distribution profile but with slightly lower tumor uptake of 111In-neunpa-trastuzumab compared to that of 111In-CHX-A″-DTPA-trastuzumab. These results were also confirmed by immuno-single photon emission computed tomography (immuno-SPECT) imaging in vivo. These initial investigations reveal the acyclic bifunctional chelator p-SCN-Bn-H4neunpa to be a promising chelator for 111In (and other radiometals) with high in vitro stability and also show H4neunpa-trastuzumab to be an excellent 111In chelator with promising biodistribution in mice.
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Affiliation(s)
- Sarah Spreckelmeyer
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia , 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada.,Department of Pharmacokinetics, Toxicology and Targeting, Research Institute of Pharmacy, University of Groningen , Antonius Deusinglaan 1, Groningen 9713 AV, The Netherlands
| | - Caterina F Ramogida
- Life Sciences Division, TRIUMF , 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - Julie Rousseau
- BC Cancer Agency , 675 West 10th Avenue, Vancouver, British Columbia V5Z 1L3, Canada
| | - Karen Arane
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia , 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Ivica Bratanovic
- Life Sciences Division, TRIUMF , 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - Nadine Colpo
- BC Cancer Agency , 675 West 10th Avenue, Vancouver, British Columbia V5Z 1L3, Canada
| | - Una Jermilova
- Life Sciences Division, TRIUMF , 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - Gemma M Dias
- BC Cancer Agency , 675 West 10th Avenue, Vancouver, British Columbia V5Z 1L3, Canada
| | - Iulia Dude
- BC Cancer Agency , 675 West 10th Avenue, Vancouver, British Columbia V5Z 1L3, Canada
| | - Maria de Guadalupe Jaraquemada-Peláez
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia , 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - François Bénard
- BC Cancer Agency , 675 West 10th Avenue, Vancouver, British Columbia V5Z 1L3, Canada
| | - Paul Schaffer
- Life Sciences Division, TRIUMF , 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - Chris Orvig
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia , 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
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6
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Wang GT, Zhang JC, Tang ZY, Zhou HT, Zhang L, Yang RW, Zou P, Yu YH, Gao JS, Hou GF. Synthesis, structures, luminescence and magnetism of nine lanthanide complexes with three-dimensional frameworks constructed from 2-(pyridyl-N-oxide)methylphosphonic acid and oxalic acid. CrystEngComm 2016. [DOI: 10.1039/c6ce00023a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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7
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Rodríguez-Rodríguez A, Halime Z, Lima LMP, Beyler M, Deniaud D, Le Poul N, Delgado R, Platas-Iglesias C, Patinec V, Tripier R. Cyclams with Ambidentate Methylthiazolyl Pendants for Stable, Inert, and Selective Cu(II) Coordination. Inorg Chem 2015; 55:619-32. [DOI: 10.1021/acs.inorgchem.5b01779] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aurora Rodríguez-Rodríguez
- UFR des
Sciences et Techniques, Université de Bretagne Occidentale, UMR-CNRS 6521, 6 avenue Victor le Gorgeu, C.S. 93837, 29238 Brest Cedex 3, France
| | - Zakaria Halime
- UFR des
Sciences et Techniques, Université de Bretagne Occidentale, UMR-CNRS 6521, 6 avenue Victor le Gorgeu, C.S. 93837, 29238 Brest Cedex 3, France
| | - Luís M. P. Lima
- Instituto de Tecnologia Química e Biológica
António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Maryline Beyler
- UFR des
Sciences et Techniques, Université de Bretagne Occidentale, UMR-CNRS 6521, 6 avenue Victor le Gorgeu, C.S. 93837, 29238 Brest Cedex 3, France
| | - David Deniaud
- UFR Sciences et Techniques, Université de Nantes, UMR-CNRS 6230, 2, rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Nicolas Le Poul
- UFR des
Sciences et Techniques, Université de Bretagne Occidentale, UMR-CNRS 6521, 6 avenue Victor le Gorgeu, C.S. 93837, 29238 Brest Cedex 3, France
| | - Rita Delgado
- Instituto de Tecnologia Química e Biológica
António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Carlos Platas-Iglesias
- Grupo QUICOOR, Centro de Investigaciones
Científicas Avanzadas (CICA) and Departamento de Química
Fundamental, Facultade de Ciencias, Universidade da Coruña, Campus
da Zapateira-Rúa da Fraga 10, 15008 A Coruña, Spain
| | - Véronique Patinec
- UFR des
Sciences et Techniques, Université de Bretagne Occidentale, UMR-CNRS 6521, 6 avenue Victor le Gorgeu, C.S. 93837, 29238 Brest Cedex 3, France
| | - Raphaël Tripier
- UFR des
Sciences et Techniques, Université de Bretagne Occidentale, UMR-CNRS 6521, 6 avenue Victor le Gorgeu, C.S. 93837, 29238 Brest Cedex 3, France
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8
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Lima LMP, Beyler M, Delgado R, Platas-Iglesias C, Tripier R. Investigating the Complexation of the Pb(2+)/Bi(3+) Pair with Dipicolinate Cyclen Ligands. Inorg Chem 2015; 54:7045-57. [PMID: 26146022 DOI: 10.1021/acs.inorgchem.5b01079] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The complexation properties toward Pb(2+) and Bi(3+) of the macrocyclic ligands 6,6'-((1,4,7,10-tetraazacyclododecane-1,7-diyl)bis(methylene))dipicolinic acid (H2do2pa) and 6,6'-((4,10-dimethyl-1,4,7,10-tetraazacyclododecane-1,7-diyl)bis(methylene))dipicolinic acid (H2Me-do2pa) have been investigated. A new three-step synthesis of H2do2pa following the bisaminal methodology has also been developed. The X-ray structures of [Pb(Me-do2pa)]·6H2O and [Bi(Me-do2pa)](NO3)·H2O show that the two metal ions are eight-coordinated by the ligand. The two complexes exist as the racemic Δ(δδδδ)/Λ(λλλλ) mixture both in the solid state and in solution, as indicated by NMR and DFT studies. The stability constants of the lead(II) and bismuth(III) complexes of the two ligands were determined in 0.5 M KCl using potentiometric and spectrophotometric techniques. The stability constants determined for the complexes of Pb(2+) are relatively high (log KML = 16.44 and 18.44 for H2do2pa and H2Me-do2pa, respectively) and exceptionally high for the complexes of Bi(3+) (log KML = 32.0 and 34.2 for H2do2pa and H2Me-do2pa, respectively). The [Pb(Me-do2pa)] complex presents rather fast formation and very good kinetic inertness toward transchelation. Additionally, the [Bi(Me-do2pa)](+) complex was found to present a remarkably fast complexation rate (full complexation in ∼2 min at pH 5.0, acetate buffer) and a very good kinetic inertness with respect to metal ion dissociation (half-life of 23.9 min in 1 M HCl), showing promise for potential applications in α-radioimmunotherapy.
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Affiliation(s)
- Luís M P Lima
- †Université de Bretagne Occidentale, UMR-CNRS 6521, UFR des Sciences et Techniques, 6 avenue Victor le Gorgeu, C.S. 93837, 29238 BREST Cedex 3, France.,‡Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Maryline Beyler
- †Université de Bretagne Occidentale, UMR-CNRS 6521, UFR des Sciences et Techniques, 6 avenue Victor le Gorgeu, C.S. 93837, 29238 BREST Cedex 3, France
| | - Rita Delgado
- ‡Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Carlos Platas-Iglesias
- §Departamento de Química Fundamental, Facultade de Ciencias, Universidade da Coruña, Campus da Zapateira-Rúa da Fraga 10, 15008 A Coruña, Spain
| | - Raphaël Tripier
- †Université de Bretagne Occidentale, UMR-CNRS 6521, UFR des Sciences et Techniques, 6 avenue Victor le Gorgeu, C.S. 93837, 29238 BREST Cedex 3, France
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9
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Elhabiri M, Abada S, Sy M, Nonat A, Choquet P, Esteban-Gómez D, Cassino C, Platas-Iglesias C, Botta M, Charbonnière LJ. Importance of Outer-Sphere and Aggregation Phenomena in the Relaxation Properties of Phosphonated Gadolinium Complexes with Potential Applications as MRI Contrast Agents. Chemistry 2015; 21:6535-46. [DOI: 10.1002/chem.201500155] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Indexed: 11/10/2022]
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10
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Rodríguez-Rodríguez A, Garda Z, Ruscsák E, Esteban-Gómez D, de Blas A, Rodríguez-Blas T, Lima LMP, Beyler M, Tripier R, Tircsó G, Platas-Iglesias C. Stable Mn2+, Cu2+ and Ln3+ complexes with cyclen-based ligands functionalized with picolinate pendant arms. Dalton Trans 2015; 44:5017-31. [DOI: 10.1039/c4dt02985b] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cyclen-based ligands containing two picolinate pendant arms form Gd3+ complexes remarkably stable and inert with respect to metal ion dissociation.
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Affiliation(s)
| | - Zoltán Garda
- Department of Inorganic and Analytical Chemistry
- Faculty of Science and Technology
- University of Debrecen
- H-4032 Debrecen
- Hungary
| | - Erika Ruscsák
- Department of Inorganic and Analytical Chemistry
- Faculty of Science and Technology
- University of Debrecen
- H-4032 Debrecen
- Hungary
| | | | - Andrés de Blas
- Departamento de Química Fundamental
- Universidade da Coruña
- A Coruña
- Spain
| | | | - Luís M. P. Lima
- Université de Bretagne Occidentale
- UMR-CNRS 6521
- SFR ScInBioS
- UFR des Sciences et Techniques
- 29238 Brest Cedex 3
| | - Maryline Beyler
- Université de Bretagne Occidentale
- UMR-CNRS 6521
- SFR ScInBioS
- UFR des Sciences et Techniques
- 29238 Brest Cedex 3
| | - Raphaël Tripier
- Université de Bretagne Occidentale
- UMR-CNRS 6521
- SFR ScInBioS
- UFR des Sciences et Techniques
- 29238 Brest Cedex 3
| | - Gyula Tircsó
- Department of Inorganic and Analytical Chemistry
- Faculty of Science and Technology
- University of Debrecen
- H-4032 Debrecen
- Hungary
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11
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Price EW, Ferreira CL, Adam MJ, Orvig C. High-denticity ligands based on picolinic acid for 111In radiochemistry. CAN J CHEM 2014. [DOI: 10.1139/cjc-2013-0542] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Four new acyclic ligands, Bn-H3nonapa (3), H3nonapa (4), p-NO2-Bn-H3nonapa (10), and Bn-H3trenpa (7), were synthesized and studied with nonradioactive In3+ and with radioactive 111In3+. The coordination of these ligands to In3+ was confirmed by high-resolution mass spectrometry and nuclear magnetic resonance spectroscopy. Radiolabeling experiments were performed with 111In3+; these demonstrated H3nonapa (4) to be the best indium ligand of those studied herein, achieving radiochemical yields of ∼97% in 10 min at ambient temperature, and stability to transchelation in mouse serum of 44.5% ± 25.9% after 24 h. Although the radiolabeling kinetics of H3nonapa (4) were excellent, serum stability results were inferior to the previously studied ligands DOTA, DTPA, and H4octapa, suggesting that the presented ligands may find their optimum radiopharmaceutical applications with isotopes other than 111In. Owing to the high denticity of these ligands (9–10 coordinate), they may realize their potential with large ion isotopes such as 177Lu, 86/90Y, and 225Ac.
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Affiliation(s)
- Eric W. Price
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
- TRIUMF, 4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Canada
| | | | | | - Chris Orvig
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
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12
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Price EW, Zeglis BM, Lewis JS, Adam MJ, Orvig C. H6phospa-trastuzumab: bifunctional methylenephosphonate-based chelator with 89Zr, 111In and 177Lu. Dalton Trans 2014; 43:119-31. [PMID: 24104523 PMCID: PMC3872121 DOI: 10.1039/c3dt51940f] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The acyclic chelator H6phospa and the bifunctional derivative p-SCN-Bn-H6phospa have been synthesized using nosyl protection chemistry and evaluated with (89)Zr, (111)In, and (177)Lu. The p-SCN-Bn-H6phospa derivative was successfully conjugated to trastuzumab with isotopic dilution assays indicating 3.3 ± 0.1 chelates per antibody and in vitro cellular binding assays indicating an immunoreactivity value of 97.9 ± 2.6%. Radiolabeling of the H6phospa-trastuzumab immunoconjugate was achieved with (111)In in 70-90% yields at room temperature in 30 minutes, while (177)Lu under the same conditions produced more inconsistent yields of 40-80%. Stability experiments in human serum revealed the (111)In-phospa-trastuzumab complex to be 52.0 ± 5.3% intact after 5 days at 37 °C, while the (177)Lu-phospa-trastuzumab to be only 2.0 ± 0.3% intact. Small animal SPECT/CT imaging using mice bearing subcutaneous SKOV-3 ovarian cancer xenografts was performed, and it was found that (111)In-phospa-trastuzumab successfully identified and delineated small (~2 mm in diameter) tumors from surrounding tissues, despite visible uptake in the kidneys and bone due to moderate chelate instability. As predicted from stability assays in serum, the (177)Lu-phospa-trastuzumab conjugate served as a negative control and displayed no tumor uptake, with high uptake in bones indicating rapid and complete radiometal dissociation and suggesting a potential application of H6phospa in transient lanthanide chelation for bone-delivery. Radiolabeling with (89)Zr was attempted, but even with elevated temperatures of 37 °C, the maximum observed radiometal incorporation over 18 hours was 12%. It can be concluded from this work that H6phospa is not superior to the previously studied H4octapa for use with (111)In and (177)Lu, but improvements in (89)Zr radiolabeling were observed over H4octapa, suggesting H6phospa to be an excellent starting point for elaboration of (89)Zr-based radiopharmaceutical development. To our knowledge, H6phospa is the best desferrioxamine alternative for (89)Zr radiolabeling to be studied to date.
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Affiliation(s)
- Eric W. Price
- Medicinal Inorganic Chemistry Group, Department of
Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British
Columbia, Canada, V6T 1Z1. Telephone: (604) 822-4449. Fax: (604) 822-2847
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia,
Canada, V6T 2A3. Telephone: (604) 222-7527. Fax: (604) 222-1074
| | - Brian M. Zeglis
- Memorial Sloan-Kettering Cancer Center (MSKCC), Memorial
Hospital, 1275 York Avenue, New York, New York, 10065, United States. Telephone:
(646) 888-3038
| | - Jason S. Lewis
- Memorial Sloan-Kettering Cancer Center (MSKCC), Memorial
Hospital, 1275 York Avenue, New York, New York, 10065, United States. Telephone:
(646) 888-3038
| | - Michael J. Adam
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia,
Canada, V6T 2A3. Telephone: (604) 222-7527. Fax: (604) 222-1074
| | - Chris Orvig
- Medicinal Inorganic Chemistry Group, Department of
Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British
Columbia, Canada, V6T 1Z1. Telephone: (604) 822-4449. Fax: (604) 822-2847
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13
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Abstract
Radiometals comprise many useful radioactive isotopes of various metallic elements. When properly harnessed, these have valuable emission properties that can be used for diagnostic imaging techniques, such as single photon emission computed tomography (SPECT, e.g.(67)Ga, (99m)Tc, (111)In, (177)Lu) and positron emission tomography (PET, e.g.(68)Ga, (64)Cu, (44)Sc, (86)Y, (89)Zr), as well as therapeutic applications (e.g.(47)Sc, (114m)In, (177)Lu, (90)Y, (212/213)Bi, (212)Pb, (225)Ac, (186/188)Re). A fundamental critical component of a radiometal-based radiopharmaceutical is the chelator, the ligand system that binds the radiometal ion in a tight stable coordination complex so that it can be properly directed to a desirable molecular target in vivo. This article is a guide for selecting the optimal match between chelator and radiometal for use in these systems. The article briefly introduces a selection of relevant and high impact radiometals, and their potential utility to the fields of radiochemistry, nuclear medicine, and molecular imaging. A description of radiometal-based radiopharmaceuticals is provided, and several key design considerations are discussed. The experimental methods by which chelators are assessed for their suitability with a variety of radiometal ions is explained, and a large selection of the most common and most promising chelators are evaluated and discussed for their potential use with a variety of radiometals. Comprehensive tables have been assembled to provide a convenient and accessible overview of the field of radiometal chelating agents.
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Affiliation(s)
- Eric W Price
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, CanadaV6T 1Z1.
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14
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Rolla GA, Platas-Iglesias C, Botta M, Tei L, Helm L. 1H and 17O NMR relaxometric and computational study on macrocyclic Mn(II) complexes. Inorg Chem 2013; 52:3268-79. [PMID: 23437979 DOI: 10.1021/ic302785m] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Herein we report a detailed 1H and 17O relaxometric investigation of Mn(II) complexes with cyclen-based ligands such as 2-(1,4,7,10-tetraazacyclododecan-1-yl)acetic acid (DO1A), 2,2'-(1,4,7,10-tetraazacyclododecane-1,4-diyl)diacetic acid (1,4-DO2A), 2,2'-(1,4,7,10-tetraazacyclododecane-1,7-diyl)diacetic acid (1,7-DO2A), and 2,2',2"-(1,4,7,10-tetraazacyclododecane-1,4,7-triyl)triacetic acid (DO3A). The Mn(II) complex with the heptadentate ligand DO3A does not have inner sphere water molecules (q = 0), and therefore, the metal ion is most likely seven-coordinate. The hexadentate DO2A ligand has two isomeric forms: 1,7-DO2A and 1,4-DO2A. The Mn(II) complex with 1,7-DO2A is predominantly six-coordinate (q = 0). In aqueous solutions of [Mn(1,4-DO2A)], a species with one coordinated water molecule (q = 1) prevails largely, whereas a q = 0 form represents only about 10% of the overall population. The Mn(II) complex of the pentadentate ligand DO1A also contains a coordinated water molecule. DFT calculations (B3LYP model) are used to obtain information about the structure of this family of closely related complexes in solution, as well as to determine theoretically the 17O and 1H hyperfine coupling constants responsible for the scalar contribution to 17O and 1H NMR relaxation rates and 17O NMR chemical shifts. These calculations provide 17O A/ħ values of ca. 40 × 10(6) rad s(-1), in good agreement with experimental data. The [Mn(1,4-DO2A)(H2O)] complex is endowed with a relatively fast water exchange rate (k(ex)298 = 11.3 × 10(8) s(-1)) in comparison to the [Mn(EDTA)(H2O)]2- analogue (k(ex)298 = 4.7 × 10(8) s(-1)), but about 5 times lower than that of the [Mn(DO1A)(H2O)]+ complex (k(ex)298 = 60 × 10(8) s(-1)). The water exchange rate measured for the latter complex represents the highest water exchange rate ever measured for a Mn(II) complex.
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Affiliation(s)
- Gabriele A Rolla
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale Amedeo Avogadro, Viale T. Michel 11, 15121, Alessandria, Italy
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15
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Stasiuk GJ, Tamang S, Imbert D, Gateau C, Reiss P, Fries P, Mazzanti M. Optimizing the relaxivity of Gd(iii) complexes appended to InP/ZnS quantum dots by linker tuning. Dalton Trans 2013; 42:8197-200. [DOI: 10.1039/c3dt50774b] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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16
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Feng W, Zhang Y, Zhang Z, Lü X, Liu H, Shi G, Zou D, Song J, Fan D, Wong WK, Jones RA. Anion-Induced Self-Assembly of Luminescent and Magnetic Homoleptic Cyclic Tetranuclear Ln4(Salen)4 and Ln4(Salen)2 Complexes (Ln = Nd, Yb, Er, or Gd). Inorg Chem 2012; 51:11377-86. [DOI: 10.1021/ic300918c] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Weixu Feng
- Shaanxi Key Laboratory
of Degradable
Medical Material, Shaanxi Key Laboratory of Physico-inorganic Chemistry, Northwest University, Xi’an 710069, Shaanxi,
China
| | - Yao Zhang
- Shaanxi Key Laboratory
of Degradable
Medical Material, Shaanxi Key Laboratory of Physico-inorganic Chemistry, Northwest University, Xi’an 710069, Shaanxi,
China
| | - Zhao Zhang
- Shaanxi Key Laboratory
of Degradable
Medical Material, Shaanxi Key Laboratory of Physico-inorganic Chemistry, Northwest University, Xi’an 710069, Shaanxi,
China
| | - Xingqiang Lü
- Shaanxi Key Laboratory
of Degradable
Medical Material, Shaanxi Key Laboratory of Physico-inorganic Chemistry, Northwest University, Xi’an 710069, Shaanxi,
China
- Fujian Institute
of Research
on the Structure of Matter, Chinese Academy of Science, Fuzhou 350002, Fujian, China
| | - Han Liu
- Shaanxi Key Laboratory
of Degradable
Medical Material, Shaanxi Key Laboratory of Physico-inorganic Chemistry, Northwest University, Xi’an 710069, Shaanxi,
China
| | - Guoxiang Shi
- Shaanxi Key Laboratory
of Degradable
Medical Material, Shaanxi Key Laboratory of Physico-inorganic Chemistry, Northwest University, Xi’an 710069, Shaanxi,
China
| | - Dan Zou
- Shaanxi Key Laboratory
of Degradable
Medical Material, Shaanxi Key Laboratory of Physico-inorganic Chemistry, Northwest University, Xi’an 710069, Shaanxi,
China
| | - Jirong Song
- Shaanxi Key Laboratory
of Degradable
Medical Material, Shaanxi Key Laboratory of Physico-inorganic Chemistry, Northwest University, Xi’an 710069, Shaanxi,
China
| | - Daidi Fan
- Shaanxi Key Laboratory
of Degradable
Medical Material, Shaanxi Key Laboratory of Physico-inorganic Chemistry, Northwest University, Xi’an 710069, Shaanxi,
China
| | - Wai-Kwok Wong
- Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon
Tong, Hong Kong, China
| | - Richard A. Jones
- Department of Chemistry and
Biochemistry, The University of Texas at Austin, 1 University Station A5300, Austin, Texas 78712-0165, United States
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17
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Abada S, Lecointre A, Elhabiri M, Esteban-Gómez D, Platas-Iglesias C, Tallec G, Mazzanti M, Charbonnière LJ. Highly relaxing gadolinium based MRI contrast agents responsive to Mg2+ sensing. Chem Commun (Camb) 2012; 48:4085-7. [PMID: 22430859 DOI: 10.1039/c2cc30757j] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A Gd complex based on a polyphosphonated pyridyl ligand shows a very high stability in aqueous solution (log K(EuL) = 25.7), a high relaxivity (8.5 mM(-1) s(-1) at 25 °C and 20 MHz) and a marked and selective relaxivity enhancement (37%) in the presence of Mg(2+), opening interesting perspectives for the design of cation responsive contrast agents.
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Affiliation(s)
- Sabah Abada
- Laboratoire d'Ingénierie Moléculaire Appliquée à l'Analyse, IPHC, UMR 7178 CNRS/UdS, ECPM 25 rue Becquerel, 67087 Strasbourg Cedex 2, France
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18
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Rodríguez-Rodríguez A, Esteban-Gómez D, de Blas A, Rodríguez-Blas T, Fekete M, Botta M, Tripier R, Platas-Iglesias C. Lanthanide(III) Complexes with Ligands Derived from a Cyclen Framework Containing Pyridinecarboxylate Pendants. The Effect of Steric Hindrance on the Hydration Number. Inorg Chem 2012; 51:2509-21. [DOI: 10.1021/ic202436j] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Aurora Rodríguez-Rodríguez
- Departamento de Química
Fundamental, Facultade de Ciencias, Universidade da Coruña, Campus da Zapateira-Rúa da Fraga 10, 15008 A Coruña,
Spain
| | - David Esteban-Gómez
- Departamento de Química
Fundamental, Facultade de Ciencias, Universidade da Coruña, Campus da Zapateira-Rúa da Fraga 10, 15008 A Coruña,
Spain
| | - Andrés de Blas
- Departamento de Química
Fundamental, Facultade de Ciencias, Universidade da Coruña, Campus da Zapateira-Rúa da Fraga 10, 15008 A Coruña,
Spain
| | - Teresa Rodríguez-Blas
- Departamento de Química
Fundamental, Facultade de Ciencias, Universidade da Coruña, Campus da Zapateira-Rúa da Fraga 10, 15008 A Coruña,
Spain
| | - Marianna Fekete
- Dipartimento di Scienze
dell’
Ambiente e della Vita, Università del Piemonte Orientale “Amedeo Avogadro”, Alessandria,
Italy
| | - Mauro Botta
- Dipartimento di Scienze
dell’
Ambiente e della Vita, Università del Piemonte Orientale “Amedeo Avogadro”, Alessandria,
Italy
| | - Raphaël Tripier
- Université de Bretagne Occidentale, UMR-CNRS 6521, UFR des Sciences
et Techniques, 6 avenue Victor le Gorgeu, C.S. 93837, 29238 BREST
Cedex 3, France
| | - Carlos Platas-Iglesias
- Departamento de Química
Fundamental, Facultade de Ciencias, Universidade da Coruña, Campus da Zapateira-Rúa da Fraga 10, 15008 A Coruña,
Spain
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19
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Regueiro-Figueroa M, Bensenane B, Ruscsák E, Esteban-Gómez D, Charbonnière LJ, Tircsó G, Tóth I, de Blas A, Rodríguez-Blas T, Platas-Iglesias C. Lanthanide dota-like complexes containing a picolinate pendant: structural entry for the design of Ln(III)-based luminescent probes. Inorg Chem 2011; 50:4125-41. [PMID: 21456610 DOI: 10.1021/ic2001915] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
In this contribution we present two ligands based on a do3a platform containing a picolinate group attached to the fourth nitrogen atom of the cyclen unit, which are designed for stable lanthanide complexation in aqueous solutions. Potentiometric measurements reveal that the thermodynamic stability of the complexes is very high (log K = 21.2-23.5), being comparable to that of the dota analogues. Luminescence lifetime measurements performed on solutions of the Eu(III) and Tb(III) complexes indicate that the complexes are nine coordinate with no inner-sphere water molecules. A combination of density functional theory (DFT) calculations and NMR measurements shows that for the complexes of the heaviest lanthanides there is a major isomer in solution consisting of the enantiomeric pair Λ(δδδδ) and Δ(λλλλ), which provides square antiprismatic coordination (SAP) around the metal ion. Analysis of the Yb(III)-induced paramagnetic shifts unambiguously confirms that these complexes have SAP coordination in aqueous solution. For the light lanthanide ions however both the SAP and twisted-square antiprismatic (TSAP) isomers are present in solution. Inversion of the cyclen ring appears to be the rate-determining step for the Λ(δδδδ) ↔ Δ(λλλλ) enantiomerization process observed in the Lu(III) complexes. The energy barriers obtained from NMR measurements for this dynamic process are in excellent agreement with those predicted by DFT calculations. The energy barriers calculated for the arm-rotation process are considerably lower than those obtained for the ring-inversion path. Kinetic studies show that replacement of an acetate arm of dota by a picolinate pendant results in a 3-fold increase in the formation rate of the corresponding Eu(III) complexes and a significant increase of the rates of acid-catalyzed dissociation of the complexes. However, these rates are 1-2 orders of magnitude lower than those of do3a analogues, which shows that the complexes reported herein are remarkably inert with respect to metal ion dissociation.
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Affiliation(s)
- Martín Regueiro-Figueroa
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira-Rúa da Fraga 10, 15008 A Coruña, Spain
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20
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Ferreirós-Martínez R, Esteban-Gómez D, Tóth É, de Blas A, Platas-Iglesias C, Rodríguez-Blas T. Macrocyclic Receptor Showing Extremely High Sr(II)/Ca(II) and Pb(II)/Ca(II) Selectivities with Potential Application in Chelation Treatment of Metal Intoxication. Inorg Chem 2011; 50:3772-84. [DOI: 10.1021/ic200182e] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Raquel Ferreirós-Martínez
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Rúa da Fraga 10, 15008 A Coruña, Spain
| | - David Esteban-Gómez
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Rúa da Fraga 10, 15008 A Coruña, Spain
| | - Éva Tóth
- Centre de Biophysique Moléculaire, CNRS, Rue Charles Sadron, 45071 Orléans, Cedex 2, France
| | - Andrés de Blas
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Rúa da Fraga 10, 15008 A Coruña, Spain
| | - Carlos Platas-Iglesias
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Rúa da Fraga 10, 15008 A Coruña, Spain
| | - Teresa Rodríguez-Blas
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Rúa da Fraga 10, 15008 A Coruña, Spain
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21
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Abada S, Lecointre A, Déchamps-Olivier I, Platas-Iglesias C, Christine C, Elhabiri M, Charbonniere L. Highly stable acyclic bifunctional chelator for 64Cu PET imaging. ACTA ACUST UNITED AC 2011. [DOI: 10.1524/ract.2011.1823] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
Ligand L1, based on a pyridine scaffold, functionalized by two bis(methane phosphonate)aminomethyl groups, was shown to display a very high affinity towards Cu(II) (log K
CuL=22.7) and selectivity over Ni(II), Co(II), Zn(II) and Ga(III) (Δ log K
ML>4) as shown by the values of the stability constants obtained from potentiometric measurements. Insights into the coordination mode of the ligand around Cu(II) cation were obtained by UV-Vis absorption and EPR spectroscopies as well as density functional theory (DFT) calculations (B3LYP model) performed in aqueous solution. The results point to a pentacoordination pattern of the metal ion in the fully deprotonated [CuL1]6− species. Considering the beneficial thermodynamic parameters of this ligand, kinetic experiments were run to follow the formation of the copper(II) complexes, indicating a very rapid formation of the complex, appropriat e for 64Cu complexation. As L1 represents a particularly interesting target within the frame of 64Cu PET imaging, a synthetic protocol was developed to introduce a labeling function on the pyridyl moiety of L1, thereby affording L2, a potential bifunctional chelator (BFC) for PET imaging.
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Affiliation(s)
- S. Abada
- Laboratoire d′Ingénierie Moléculaire Appliquée à l′Analyse, IPHC, UMR 7178 CNRS/UdS, ECPM, Bât R1N0, Strasbourg Cedex 02, Frankreich
| | - A. Lecointre
- Laboratoire d′Ingénierie Moléculaire Appliquée à l′Analyse, IPHC, UMR 7178 CNRS/UdS, ECPM, Bât R1N0, 67087 Strasbourg Cedex 02, Frankreich
| | - I. Déchamps-Olivier
- Université de Reims Champagne Ardenne, Institut de Chimie Moléculaire de Reims, Groupe Chimie de Coordination, CNRS UMR 6229, Bât., 51687 REIMS CEDEX 2, Frankreich
| | - C. Platas-Iglesias
- Universidade da Coruna, Departamento de Quimica Fundamental, A Coruna, Spanien
| | - C. Christine
- Laboratoire, D'Ingénierie Moléculaire Appliquée, IPHC, UMR 7178 CNRS/UdS, Strasbourg, Frankreich
| | - M. Elhabiri
- Institut de Chjmie, Lab de Physico-Chimie Bioinorganique, UMR 7177 CNRS/UdS, Strasbourg, Frankreich
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22
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Katia NN, Lecointre A, Regueiro-Figueroa M, Platas-Iglesias C, Charbonnière LJ. Nonmacrocyclic Luminescent Lanthanide Complexes Stable in Biological Media. Inorg Chem 2011; 50:1689-97. [DOI: 10.1021/ic102173f] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Nchimi Nono Katia
- Laboratoire d’Ingénierie Moléculaire Appliquée à l’Analyse, IPHC, UMR 7178 CNRS/UdS, ECPM, Bâtiment R1N0, 25 Rue Becquerel, 67087, Strasbourg Cedex 02, France
| | - Alexandre Lecointre
- Laboratoire d’Ingénierie Moléculaire Appliquée à l’Analyse, IPHC, UMR 7178 CNRS/UdS, ECPM, Bâtiment R1N0, 25 Rue Becquerel, 67087, Strasbourg Cedex 02, France
| | - Martín Regueiro-Figueroa
- Departamento de Química Fundamental, Universidade da Coruña, Campus de Zapateira, Rúa da Fraga 10, 15008, A Coruña, Spain
| | - Carlos Platas-Iglesias
- Departamento de Química Fundamental, Universidade da Coruña, Campus de Zapateira, Rúa da Fraga 10, 15008, A Coruña, Spain
| | - Loïc J. Charbonnière
- Laboratoire d’Ingénierie Moléculaire Appliquée à l’Analyse, IPHC, UMR 7178 CNRS/UdS, ECPM, Bâtiment R1N0, 25 Rue Becquerel, 67087, Strasbourg Cedex 02, France
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23
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Roca-Sabio A, Mato-Iglesias M, Esteban-Gómez D, de Blas A, Rodríguez-Blas T, Platas-Iglesias C. The effect of ring size variation on the structure and stability of lanthanide(III) complexes with crown ethers containing picolinate pendants. Dalton Trans 2010; 40:384-92. [PMID: 21116555 DOI: 10.1039/c0dt00746c] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The coordination properties of the macrocyclic receptor N,N'-bis[(6-carboxy-2-pyridyl)methylene]-1,10-diaza-15-crown-5 (H(2)bp15c5) towards the lanthanide ions are reported. Thermodynamic stability constants were determined by pH-potentiometric titration at 25 °C in 0.1 M KCl. A smooth decrease in complex stability is observed upon decreasing the ionic radius of the Ln(III) ion from La [log K(LaL) = 12.52(2)] to Lu [log K(LuL) = 10.03(6)]. Luminescence lifetime measurements recorded on solutions of the Eu(III) and Tb(III) complexes confirm the absence of inner-sphere water molecules in these complexes. (1)H and (13)C NMR spectra of the complexes formed with the diamagnetic La(III) metal ion were obtained in D(2)O solution and assigned with the aid of HSQC and HMBC 2D heteronuclear experiments, as well as standard 2D homonuclear COSY and NOESY spectra. The (1)H NMR spectra of the paramagnetic Ce(III), Eu(III) and Yb(III) complex suggest nonadentate binding of the ligand to the metal ion. The syn conformation of the ligand in [Ln(bp15c5)](+) complexes implies the occurrence of two helicities, one associated with the layout of the picolinate pendant arms (absolute configuration Δ or Λ), and the other to the five five-membered chelate rings formed by the binding of the crown moiety (absolute configuration δ or λ). A detailed conformational analysis performed with the aid of DFT calculations (B3LYP model) indicates that the complexes adopt a Λ(λδ)(δδλ) [or Δ(δλ)(λλδ)] conformation in aqueous solution. Our calculations show that the interaction between the Ln(III) ion and several donor atoms of the crown moiety is weakened as the ionic radius of the metal ion decreases, in line with the decrease of complex stability observed on proceeding to the right across the lanthanide series.
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Affiliation(s)
- Adrián Roca-Sabio
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira-Rúa da Fraga 10, 15008 A, Coruña, Spain
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Regueiro-Figueroa M, Esteban-Gómez D, de Blas A, Rodríguez-Blas T, Platas-Iglesias C. Structure and Dynamics of Lanthanide(III) Complexes with an N-Alkylated do3a Ligand (H3do3a = 1,4,7,10-Tetraazacyclododecane-1,4,7-triacetic Acid): A Combined Experimental and DFT Study. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000334] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Ferreirós-Martínez R, Platas-Iglesias C, de Blas A, Esteban-Gómez D, Rodríguez-Blas T. Macrocyclic Receptor Showing Improved PbII/ZnII and PbII/CaII Selectivities. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.200901219] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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26
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Purgel M, Baranyai Z, de Blas A, Rodríguez-Blas T, Bányai I, Platas-Iglesias C, Tóth I. An NMR and DFT Investigation on the Conformational Properties of Lanthanide(III) 1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetraacetate Analogues Containing Methylenephosphonate Pendant Arms. Inorg Chem 2010; 49:4370-82. [DOI: 10.1021/ic100177n] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Mihály Purgel
- Department of Inorganic and Analytical Chemistry, University of Debrecen, P.O. Box 21, Egyetem tér 1, Debrecen H-4010, Hungary
- Research group of Homogeneous Catalysis, MTA-DE, University of Debrecen, Egyetem tér 1, Debrecen H-4032, Hungary
| | - Zsolt Baranyai
- Department of Inorganic and Analytical Chemistry, University of Debrecen, P.O. Box 21, Egyetem tér 1, Debrecen H-4010, Hungary
| | - Andrés de Blas
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain
| | - Teresa Rodríguez-Blas
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain
| | - István Bányai
- Department of Colloid and Environmental Chemistry, University of Debrecen, P.O. Box 21, Egyetem tér 1, Debrecen H-4010, Hungary
| | - Carlos Platas-Iglesias
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain
| | - Imre Tóth
- Department of Inorganic and Analytical Chemistry, University of Debrecen, P.O. Box 21, Egyetem tér 1, Debrecen H-4010, Hungary
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Gałęzowska J, Janicki R, Kozłowski H, Mondry A, Młynarz P, Szyrwiel Ł. Unusual Coordination Behaviour of a Phosphonate- and Pyridine-Containing Ligand in a Stable Lanthanide Complex. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000058] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Ferreirós-Martínez R, Esteban-Gómez D, Platas-Iglesias C, de Blas A, Rodríguez-Blas T. Selective chelation of Cd(II) and Pb(II) versus Ca(II) and Zn(II) by using octadentate ligands containing pyridinecarboxylate and pyridyl pendants. Inorg Chem 2010; 48:10976-87. [PMID: 19877597 DOI: 10.1021/ic900838j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Herein we report the coordination properties toward Cd(II), Pb(II), Ca(II), and Zn(II) of a new octadentate ligand (py-H(2)bcpe) based on a ethane-1,2-diamine unit containing two picolinate and two pyridyl pendants, which is structurally derived from the previous reported ligand bcpe. Potentiometric studies have been carried out to determine the protonation constants of the ligand and the stability constants of the complexes with these cations. The introduction of the pyridyl pendants in bcpe provokes a very important increase of the logK(ML) values obtained for the Pb(II) and Cd(II) complexes, while this effect is less important in the case of the Zn(II) analogue. As a result, py-bcpe shows a certain selectivity for Cd(II) and Pb(II) over Zn(II) while keeping good Pb(II)/Ca(II) and Cd(II)/Ca(II) selectivities, and the new receptor py-bcpe can be considered as a new structural framework for the design of novel Cd(II) and Pb(II) extracting agents. Likewise, the stabilities of the Cd(II) and Pb(II) complexes are higher than those of the corresponding EDTA analogues. The X-ray crystal structure of [Zn(py-bcpe)] shows hexadentate binding of the ligand to the metal ion, the coordination polyhedron being best described as a severely distorted octahedron. However, the X-ray crystal structure of the Pb(II) analogue shows octadentate binding of the ligand to the metal ion. A detailed investigation of the structure in aqueous solution of the complexes by using nuclear magnetic resonance (NMR) techniques and density functional theory (DFT) calculations (B3LYP) shows that while in the Zn(II) complex the metal ion is six-coordinated, in the Pb(II) and Ca(II) analogues the metal ions are eight-coordinated. For the Cd(II) complex, our results suggest that in solution the complex exists as a mixture of seven- and eight-coordinated species. DFT calculations performed both in the gas phase and in aqueous solution have been also used to investigate the role of the Pb(II) lone pair in the structure of the [Pb(py-bcpe)] complex.
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Affiliation(s)
- Raquel Ferreirós-Martínez
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain
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Ferreirós-Martínez R, Esteban-Gómez D, de Blas A, Platas-Iglesias C, Rodríguez-Blas T. Eight-coordinate Zn(II), Cd(II), and Pb(II) complexes based on a 1,7-diaza-12-crown-4 platform endowed with a remarkable selectivity over Ca(II). Inorg Chem 2010; 48:11821-31. [PMID: 19911785 DOI: 10.1021/ic901883h] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The thermodynamic stability of the Pb(II), Cd(II), Zn(II), and Ca(II) complexes with the dianionic macrocyclic ligand N,N'-bis[(6-carboxy-2-pyridyl)methyl]-1,7-diaza-12-crown-4 (H(2)bp12c4) has been investigated by pH-potentiometric titrations at 25 degrees C in 0.1 M KNO(3). The stability constants vary in the following order: Cd(II) > Zn(II) approximately Pb(II) > Ca(II). As a consequence, H(2)bp12c4 present an important Cd(II)/Ca(II) selectivity, as well as a certain selectivity for Cd(II) over Zn(II). To rationalize these results, a detailed investigation of the structure of these complexes has been carried out both in solid state and in aqueous solution. Furthermore, the [M(bp12c4)] complexes (M = Ca, Zn, Cd, or Pb) were characterized by means of density functional theory (DFT) calculations (B3LYP model) to obtain information on their solution structures and to investigate the possible stereochemical activity of the Pb(II) lone pair. Our results show that in all cases the metal ion is octacoordinated by the ligand, a situation that is particularly rare for Zn(II) complexes. The coordination polyhedra observed in the solid state for the [M(bp12c4)] complexes (M = Zn, Cd, or Ca) is closely related to the conformation adopted by the ligand in the corresponding complex: The Zn(II) complex adopts a Delta(lambdalambdalambdalambda) conformation in the solid state, which results in a square antiprismatic coordination, while the Delta(deltadeltadeltadelta) conformation observed for the Cd(II) and Ca(II) analogues yields inverted-square antiprismatic geometries. The X-ray crystal structure of the Pb(II) analogue shows that the metal ion is directly bound to the eight donor atoms of the ligand, but the bond distances of the metal coordination environment indicate an asymmetrical coordination of the cation by the ligand, which is attributed to the stereochemical activity of the Pb(II) lone pair. In aqueous solution the Ca(II), Zn(II), and Cd(II) complexes show rigid C(2) symmetries, while the Pb(II) analogue presents a more flexible structure.
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Affiliation(s)
- Raquel Ferreirós-Martínez
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, Spain
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Pálinkás Z, Roca-Sabio A, Mato-Iglesias M, Esteban-Gómez D, Platas-Iglesias C, de Blas A, Rodríguez-Blas T, Tóth É. Stability, Water Exchange, and Anion Binding Studies on Lanthanide(III) Complexes with a Macrocyclic Ligand Based on 1,7-Diaza-12-crown-4: Extremely Fast Water Exchange on the Gd3+ Complex. Inorg Chem 2009; 48:8878-89. [DOI: 10.1021/ic9011197] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zoltán Pálinkás
- Centre de Biophysique Moléculaire, CNRS, rue Charles Sadron, 45071 Orléans, Cedex 2, France
| | - Adrián Roca-Sabio
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain
| | - Marta Mato-Iglesias
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain
| | - David Esteban-Gómez
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain
| | - Carlos Platas-Iglesias
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain
| | - Andrés de Blas
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain
| | - Teresa Rodríguez-Blas
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain
| | - Éva Tóth
- Centre de Biophysique Moléculaire, CNRS, rue Charles Sadron, 45071 Orléans, Cedex 2, France
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Núñez C, Mato-Iglesias M, Bastida R, Macías A, Pérez-Lourido P, Platas-Iglesias C, Valencia L. Solid-State and Solution Structure of Lanthanide(III) Complexes with a Flexible Py-N6Macrocyclic Ligand. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200801088] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Roca-Sabio A, Mato-Iglesias M, Esteban-Gómez D, Tóth É, Blas AD, Platas-Iglesias C, Rodríguez-Blas T. Macrocyclic Receptor Exhibiting Unprecedented Selectivity for Light Lanthanides. J Am Chem Soc 2009; 131:3331-41. [DOI: 10.1021/ja808534w] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Adrián Roca-Sabio
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Centre de Biophysique Moléculaire, CNRS, rue Charles Sadron, 45071 Orléans, Cedex 2, France
| | - Marta Mato-Iglesias
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Centre de Biophysique Moléculaire, CNRS, rue Charles Sadron, 45071 Orléans, Cedex 2, France
| | - David Esteban-Gómez
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Centre de Biophysique Moléculaire, CNRS, rue Charles Sadron, 45071 Orléans, Cedex 2, France
| | - Éva Tóth
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Centre de Biophysique Moléculaire, CNRS, rue Charles Sadron, 45071 Orléans, Cedex 2, France
| | - Andrés de Blas
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Centre de Biophysique Moléculaire, CNRS, rue Charles Sadron, 45071 Orléans, Cedex 2, France
| | - Carlos Platas-Iglesias
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Centre de Biophysique Moléculaire, CNRS, rue Charles Sadron, 45071 Orléans, Cedex 2, France
| | - Teresa Rodríguez-Blas
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Centre de Biophysique Moléculaire, CNRS, rue Charles Sadron, 45071 Orléans, Cedex 2, France
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Mato-Iglesias M, Rodríguez-Blas T, Platas-Iglesias C, Starck M, Kadjane P, Ziessel R, Charbonnière L. Solution Structure and Dynamics, Stability, and NIR Emission Properties of Lanthanide Complexes with a Carboxylated Bispyrazolylpyridyl Ligand. Inorg Chem 2009; 48:1507-18. [DOI: 10.1021/ic801816p] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marta Mato-Iglesias
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Laboratoire de Chimie Organique et Spectroscopie Avancées CNRS UMR 7515, ECPM-ULP, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Teresa Rodríguez-Blas
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Laboratoire de Chimie Organique et Spectroscopie Avancées CNRS UMR 7515, ECPM-ULP, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Carlos Platas-Iglesias
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Laboratoire de Chimie Organique et Spectroscopie Avancées CNRS UMR 7515, ECPM-ULP, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Matthieu Starck
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Laboratoire de Chimie Organique et Spectroscopie Avancées CNRS UMR 7515, ECPM-ULP, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Pascal Kadjane
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Laboratoire de Chimie Organique et Spectroscopie Avancées CNRS UMR 7515, ECPM-ULP, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Raymond Ziessel
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Laboratoire de Chimie Organique et Spectroscopie Avancées CNRS UMR 7515, ECPM-ULP, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Loïc Charbonnière
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Laboratoire de Chimie Organique et Spectroscopie Avancées CNRS UMR 7515, ECPM-ULP, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
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Nonat A, Giraud M, Gateau C, Fries PH, Helm L, Mazzanti M. Gadolinium(III) complexes of 1,4,7-triazacyclononane based picolinate ligands: simultaneous optimization of water exchange kinetics and electronic relaxation. Dalton Trans 2009:8033-46. [DOI: 10.1039/b907738c] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kotková Z, Pereira GA, Djanashvili K, Kotek J, Rudovský J, Hermann P, Vander Elst L, Muller RN, Geraldes CFGC, Lukeš I, Peters JA. Lanthanide(III) Complexes of Phosphorus Acid Analogues of H4DOTA as Model Compounds for the Evaluation of the Second-Sphere Hydration. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200800859] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Charbonnière L, Mameri S, Kadjane P, Platas-Iglesias C, Ziessel R. Tuning the Coordination Sphere around Highly Luminescent Lanthanide Complexes. Inorg Chem 2008; 47:3748-62. [DOI: 10.1021/ic702472n] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Loïc Charbonnière
- Laboratoire de Chimie Moléculaire, associé au CNRS, ECPM-ULP, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France, and Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain
| | - Samir Mameri
- Laboratoire de Chimie Moléculaire, associé au CNRS, ECPM-ULP, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France, and Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain
| | - Pascal Kadjane
- Laboratoire de Chimie Moléculaire, associé au CNRS, ECPM-ULP, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France, and Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain
| | - Carlos Platas-Iglesias
- Laboratoire de Chimie Moléculaire, associé au CNRS, ECPM-ULP, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France, and Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain
| | - Raymond Ziessel
- Laboratoire de Chimie Moléculaire, associé au CNRS, ECPM-ULP, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France, and Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain
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González-Lorenzo M, Platas-Iglesias C, Mato-Iglesias M, Esteban-Gómez D, Blas AD, Rodríguez-Blas T. Conformational study of lanthanide(III) complexes of N-(2-salicylaldiminatobenzyl)-1-aza-18-crown-6 by using X-ray and ab initio methods. Polyhedron 2008. [DOI: 10.1016/j.poly.2008.01.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ferreirós-Martínez R, Esteban-Gómez D, Platas-Iglesias C, de Blas A, Rodríguez-Blas T. Zn(ii), Cd(ii) and Pb(ii) complexation with pyridinecarboxylate containing ligands. Dalton Trans 2008:5754-65. [DOI: 10.1039/b808631a] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Djanashvili K, Platas-Iglesias C, Peters JA. The structure of the lanthanide aquo ions in solution as studied by 17O NMR spectroscopy and DFT calculations. Dalton Trans 2008:602-7. [DOI: 10.1039/b714801a] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Pérez-Mayoral E, Soler-Padrós J, Negri V, Cerdán S, Ballesteros P. Synthetic approaches to heterocyclic ligands for Gd-based MRI contrast agents. Molecules 2007; 12:1771-95. [PMID: 17960087 PMCID: PMC6149094 DOI: 10.3390/12081771] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2007] [Revised: 08/03/2007] [Accepted: 08/03/2007] [Indexed: 11/17/2022] Open
Abstract
Magnetic Resonance Imaging (MRI) methods are currently used in the clinic for the non invasive detection and characterization of a wide variety of pathologies. Increases in the diagnostic efficiency of MRI have been helped by both the design of dedicated MR sequences revealing specific aspects of the pathology and by the development of more sensitive and selective Contrast Agents (CAs), capable of more precisely delineating the borderline regions. In the present review we focus on the synthetic strategies used to obtain MRI CAs containing heterocyclic rings.
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Affiliation(s)
- Elena Pérez-Mayoral
- Laboratorio de Síntesis Orgánica e Imagen Molecular por Resonancia Magnética, Facultad de Ciencias, UNED, Paseo Senda del Rey 9, E-28040 Madrid, Spain
- Departamento de Química Inorgánica y Química Técnica, Facultad de Ciencias, UNED, Paseo Senda del Rey 9, E-28040 Madrid, Spain
| | - Jordi Soler-Padrós
- Laboratorio de Síntesis Orgánica e Imagen Molecular por Resonancia Magnética, Facultad de Ciencias, UNED, Paseo Senda del Rey 9, E-28040 Madrid, Spain
| | - Viviana Negri
- Laboratorio de Síntesis Orgánica e Imagen Molecular por Resonancia Magnética, Facultad de Ciencias, UNED, Paseo Senda del Rey 9, E-28040 Madrid, Spain
| | - Sebastián Cerdán
- Laboratorio de Imagen Espectroscópica por Resonancia Magnética (LIERM), Instituto de Investigaciones Biomédicas “Alberto Sols”, CSIC/UAM, C/ Arturo Duperier 4, E-28029 Madrid, Spain
| | - Paloma Ballesteros
- Laboratorio de Síntesis Orgánica e Imagen Molecular por Resonancia Magnética, Facultad de Ciencias, UNED, Paseo Senda del Rey 9, E-28040 Madrid, Spain
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