http://www.cnr.it/ontology/cnr/individuo/prodotto/ID18324
Synthesis and structural characterization of new oxorhenium and oxotechnetium complexes with XN2S-tetradentate semi-rigid ligands (Articolo in rivista)
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- Synthesis and structural characterization of new oxorhenium and oxotechnetium complexes with XN2S-tetradentate semi-rigid ligands (Articolo in rivista) (literal)
- Anno
- 2005-01-01T00:00:00+01:00 (literal)
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Le Gal J. 1 ,Tisato F. 2, Bandoli G. 3, Gressier M. 1, Jaud J. 4, Michaud S. 1, Dartiguenave M. 1, Benoist E. 1 (2005)
Synthesis and structural characterization of new oxorhenium and oxotechnetium complexes with XN2S-tetradentate semi-rigid ligands
in Dalton transactions (2003. Print)
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- Le Gal J. 1 ,Tisato F. 2, Bandoli G. 3, Gressier M. 1, Jaud J. 4, Michaud S. 1, Dartiguenave M. 1, Benoist E. 1 (literal)
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- 1. Laboratoire de Chimie Inorganique, EA 807, Université Paul Sabatier, Toulouse
2. ICIS-CNR, Padova
3. Dept. Pharmaceutical Sciences, University Padova
4. CEMES-CNRS, Toulouse (literal)
- Titolo
- Synthesis and structural characterization of new oxorhenium and oxotechnetium complexes with XN2S-tetradentate semi-rigid ligands (literal)
- Abstract
- Twelve novel oxo-technetium and oxo-rhenium complexes based on N2S2- N2SO- or N3S-tetradentate semi-rigid ligands have been synthesised and studied herein. By reacting the ligands with a slight excess of suitable [MO]3+ precursor (ReOCl3(PPh3)2 or [NBu4][99gTcOCl4]), the monoanionic complexes of general formula [MO(Ph-XN2S)]- could be easily produced in high yield. The complexes have been characterized by means of IR, electrospray mass spectrometry, elemental analysis, NMR and conductimetry. The crystal structures of [PPh4][ReO(Ph-ON2S)] 1b and [NBu4][99gTcO(Ph-ON2S)] 1c have been established. The [MO]3+ moiety was coordinated via the two deprotonated amide nitrogens, the oxygen and the terminal sulfur atoms in 1b and 1c. In both compounds, the ON2S coordination set is in the equatorial plane, and the complexes adopted a distorted square pyramidal geometry with an axial oxo-group. The chemical and structural identity of the different prototypic complexes (rhenium, 99gTc complexes and their corresponding 99mTc radiocomplexes) have been also established by a comparative HPLC study.
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