Activation of the Aromatic Core of 3,3′-(Pyridine-2,6-diylbis(1H-1,2,3-triazole-4,1-diyl))bis(propan-1-ol)-Effects on Extraction Performance, Stability Constants, and Basicity

被引:28
|
作者
Wessling, Patrik [1 ,2 ]
Trumm, Michael [1 ]
Macerata, Elena [3 ]
Ossola, Annalisa [3 ]
Mossini, Eros [3 ]
Gullo, Maria Chiara [4 ]
Arduini, Arturo [4 ]
Casnati, Alessandro [4 ]
Mariani, Mario [3 ]
Adam, Christian [1 ]
Geist, Andreas [1 ]
Panak, Petra J. [1 ,2 ]
机构
[1] Karlsruhe Inst Technol, Inst Nucl Waste Disposal, POB 3640, D-76021 Karlsruhe, Germany
[2] Heidelberg Univ, Inst Phys Chem, Neuenheimer Feld 253, D-69120 Heidelberg, Germany
[3] Politecn Milan, Dept Energy, Nucl Engn Div, Piazza Leonardo da Vinci 32, I-20133 Milan, Italy
[4] Univ Parma, Dipartimento Sci Chim Vita & Sostenibil Ambiental, Area Sci 17-A, I-43124 Parma, Italy
基金
欧洲研究理事会;
关键词
SOLVENT-EXTRACTION; DONOR LIGANDS; BTP LIGANDS; BASIS-SETS; SEPARATION; CHEMISTRY; ACTINIDES(III); COMPLEXATION; AM(III); LANTHANIDES(III);
D O I
10.1021/acs.inorgchem.9b02325
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The "CHON" compatible water-soluble ligand 3,3'-(pyridine-2,6-diylbis(1H-1,2,3-triazole-4,1-diyl))bis-(propan-1-ol) (PTD) has shown promise for selectively stripping actinide ions from an organic phase containing both actinide and lanthanide ions, by preferential complexation of the former. Aiming at improving its complexation properties, PTD-OMe was synthesized, bearing a methoxy group on the central pyridine ring, thus increasing its basicity and hence complexation strength. Unfortunately, solvent extraction experiments in the range of 0.1-1 mol/L nitric acid proved PTD-OMe to be less efficient than PTD. This behavior is explained by its greater pK(a) value (pK(a) = 2.54) compared to PTD (pK(a) = 2.1). This counteracts its improved complexation properties for Cm(III) (log beta(3)(PTD-OMe) = 10.8 +/- 0.4 versus log beta(3)(PTD) = 9.9 +/- 0.5).
引用
收藏
页码:14642 / 14651
页数:10
相关论文
共 5 条
  • [1] 3,3′-(Pyridine-2,6-diyl)bis(4-allyl-4,5-dihydro-1H-1,2,4-triazole-5-thione)
    Cetin, Ahmet
    Dincer, Muharrem
    Ozdemir, Namik
    Dayan, Osman
    Cansiz, Ahmet
    ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, 2006, 62 : O4385 - O4387
  • [2] Crystal structure of 3,3 '-diisopropy1-1'-(pyridine-2,6-diyl)bis[1H-imidazole-2(3H)-thione]
    Sun, Ying
    Wang, Hui
    Jia, Wei-Guo
    ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, 2015, 71 : O255 - U372
  • [3] Crystal structure of 3,3′-(pyridine-2,6-diylbis(methylene))bis(1-propyl-1H-imidazol-3-ium) ditetrafluoroborate, C19H27B2F8N5
    Ywaya, David O.
    Friedrich, Holger B.
    Bala, Muhammad D.
    Soobramoney, Lynette
    Ibrahim, Halliru
    ZEITSCHRIFT FUR KRISTALLOGRAPHIE-NEW CRYSTAL STRUCTURES, 2022, 237 (03): : 381 - 383
  • [4] The crystal structure of 2,2′-((pyridine-2,6-diylbis(methylene))bis(sulfanediyl))-bis(4,5-dihydro-1H-imidazol-3-ium) bromide, C13H19Br2N5S2
    Eigner, Vaclav
    ZEITSCHRIFT FUR KRISTALLOGRAPHIE-NEW CRYSTAL STRUCTURES, 2022, 237 (06): : 1061 - 1063
  • [5] Diaqua[3,5-bis(4-pyridyl)-1H-1,2,4-triazole-κN3](pyridine-2,6-dicarboxylato-κ3O2,N,O6)nickel(II)
    Cheng, Feng-Jie
    Wang, Yi-Sen
    Liu, Yan-Cheng
    ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE, 2011, 67 : M137 - U299