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Artykuły w czasopismach na temat "Poly-dentate Ligands"
Khan, Mirza M. Taqui, Hari C. Bajaj, Md Rafiq H. Siddiqui, Badar Taqui Khan, M. Satyanarayan Reddy i K. Veera Reddy. "Cationic complexes of ruthenium-(II) and -(III) with uni- and poly-dentate ligands". Journal of the Chemical Society, Dalton Transactions, nr 12 (1985): 2603. http://dx.doi.org/10.1039/dt9850002603.
Pełny tekst źródłaShoker, Tharallah A., i Tarek H. Ghaddar. "Novel poly-pyridyl ruthenium complexes with bis- and tris-tetrazolate mono-dentate ligands for dye sensitized solar cells". RSC Adv. 4, nr 35 (2014): 18336–40. http://dx.doi.org/10.1039/c4ra02032d.
Pełny tekst źródłaNiu, Cao-Yuan, Ben-Lai Wu, Xin-Sheng Wan, Hong-Yun Zhang i Hong-Quan Zhang. "Two di-nuclear Cd(II) and Mn(II) complexes with one new poly-dentate double Schiff base ligand derived from 1,10-phenanthroline: Syntheses, structures, and physical properties". Journal of Molecular Structure 973, nr 1-3 (czerwiec 2010): 194–200. http://dx.doi.org/10.1016/j.molstruc.2010.03.070.
Pełny tekst źródłaZheng, Wei, Hao Zhang, Xiaojia Wang, Xiangzhou Zhang, Teng Long, Hua Wang, William W. Yu i Chuanjian Zhou. "Dual Function Polymer Ligands of Perovskite Nanocrystals for Extraordinary Water Resistance and X‐Ray Imaging Scintillators". Advanced Optical Materials, 17.08.2023. http://dx.doi.org/10.1002/adom.202301241.
Pełny tekst źródłaKHAN, M. M. T., H. C. BAJAJ, MD R. H. SIDDIQUI, B. T. KHAN, M. S. REDDY i K. V. REDDY. "ChemInform Abstract: Cationic Complexes of Ruthenium(II) and -(III) with Uni- and Poly-dentate Ligands." Chemischer Informationsdienst 17, nr 18 (6.05.1986). http://dx.doi.org/10.1002/chin.198618329.
Pełny tekst źródłaJabbar, Araf Ismael, Mahmoud Najim Al-jibouri i Ahmad H. Ismail. "Synthesis and Structural Studies of Transition Metals Complexes with Poly dentate Azo dye ligand Derived from Coumarine11". Egyptian Journal of Chemistry, 5.06.2021, 0. http://dx.doi.org/10.21608/ejchem.2021.78215.3826.
Pełny tekst źródłaRozprawy doktorskie na temat "Poly-dentate Ligands"
Steczek, Lukasz. "Complexation of actinides Am(III), Th(IV), Pu(IV) and U(VI) with poly-N-dentate ligands SO3-Ph-BTP and SO3-Ph-BTBP". Thesis, Montpellier, 2016. http://www.theses.fr/2016MONTT238/document.
Pełny tekst źródłaThe complexation of Th(IV), U(VI), Pu(IV) and Am(III) with the hydrophilic ligand SO3-Ph-BTP4–, and of Th(IV) and Pu(IV) with the hydrophilic SO3-Ph-BTBP4– ligand was studied. These new hydrophilic aromatic poly-N-dentate ligands are proposed, in the frame of recycling spent nuclear fuel, for a selective separation of actinides(III) from lanthanides(III) and from other fission products. The aim of this work was to compare the ability of the actinide ions to coordinate these N-dentate molecules. After some disappointing tests with classical spectroscopies, the method of liquid-liquid (solvent) extraction was applied to reach this goal. The extraction system consisted of two chelating ligands that competed for the actinide ions: a lipophilic tri-O-dentate neutral molecule of dioctylamide (TODGA) and a hydrophilic tri(or tetra)-N-dentate anion SO3-Ph-BT(B)P4–. The simple model we applied, well known in literature, considered chemical equilibria resulting in accumulation of the metal complexes with the lipophilic ligand in the organic phase, and those with the hydrophilic ligand – in the aqueous phase. With increasing concentration of the hydrophilic ligand (the concentration of the lipophilic ligand being constant) the equilibrium shifted towards the complexes with the hydrophilic ligand, and the distribution ratio of the metal decreased.The results have been interpreted in terms of the formation of 1:1 and 1:2 actinide complexes with tridentate SO3-Ph-BTP4– and only single 1:1 An(IV) complexes with tetradentate SO3-Ph-BTBP4– ligands in the two-phase systems studied. Two series of conditional stability constants of the complexes have been determined in our experiments: one set of the conditional stability constants, αL,i, related to 1 M nitrate media, whereas the other, βL,i, – to aqueous solutions of ionic strength I = 1 M, where the complexation by nitrates was taken into account. In the latter case, when the effect of the actinide complexation by nitrates was deducted, the conditional stability constants, βL,1, of the actinide complexes with SO3-Ph-BTP4– increase in the order UO22+ < Am3+ < Th4+ < Pu(IV), in accordance with the increasing z/r2 ratio (where z is the formal charge and r is the radius of the metal ion). The analysis of the βL,i values suggests that the electrostatic effects play the major role in the formation of the complexes between the poly-N-dentate ligands and actinides ions.Concerning the complexation of Am3+ with the tri-N-dentate SO3-Ph-BTP4– ligand, if we compare our results with the literature values for the analogous Cm3+ complexes studied by a spectroscopic (TRLFS) technique, the stability constants of 1:1 and 1:2 complexes of Am3+ are much lower, and its 1:3 complex has not been found by the solvent extraction method. The stability constants of the SO3-Ph-BTP and SO3-Ph-BTBP complexes with the actinides(IV) have not been reported yet in literature, therefore such comparison was impossible in this case. However, the expected 1:3 complexes of Pu(IV) and Th(IV) with the SO3-Ph-BTP4– ligand have not been found in our solvent extraction experiments as well. Similarly, only 1:1 Pu and Th complexes with the tetra-N-dentate SO3-Ph-BTBP4– ligand have been found by solvent extraction, in spite of that the 1:2 complexes were also expected. These surprising results could be a result of oversimplification of the used model of extraction, and should be completed by further spectroscopic studies to identify all the complexes formed in the two-phase system studied. Nevertheless, the stability constants determined in the solvent extraction experiments (“practical” stability constants) allow us to correctly describe and to predict the behaviour of metal ions in such two-phase systems