Lanthanide Complexes with a Calix[8]arene Bearing Phosphinoyl Pendant Arms

2007 ◽  
Vol 2007 (16) ◽  
pp. 2315-2326 ◽  
Author(s):  
Lada N. Puntus ◽  
Anne-Sophie Chauvin ◽  
Sabi Varbanov ◽  
Jean-Claude G. Bünzli



2005 ◽  
Vol 752 (1-3) ◽  
pp. 78-86 ◽  
Author(s):  
Qian-Ling Guo ◽  
Da-Qiang Yuan ◽  
Shu-Lan Ma ◽  
Ying-Chun Liu ◽  
Wen-Xiang Zhu


Author(s):  
Laetitia Le Saulnier ◽  
Sabi Varbanov ◽  
Rosario Scopelliti ◽  
Mourad Elhabiri ◽  
Jean-Claude G. Bünzli




2019 ◽  
Vol 58 (23) ◽  
pp. 15788-15800 ◽  
Author(s):  
Ana Christina L. Opina ◽  
Madeleine Strickland ◽  
Yong Sok Lee ◽  
Nico Tjandra ◽  
Rolf E. Swenson ◽  
...  


2008 ◽  
Vol 2008 (11) ◽  
pp. 1901-1912 ◽  
Author(s):  
Xue-Qin Song ◽  
Wei-Sheng Liu ◽  
Wei Dou ◽  
Ya-Wen Wang ◽  
Jiang-Rong Zheng ◽  
...  


Author(s):  
Gaël Zucchi ◽  
Rosario Scopelliti ◽  
Pierre-André Pittet ◽  
Jean-Claude G. Bünzli ◽  
Robin D. Rogers


2005 ◽  
Vol 77 (3) ◽  
pp. 569-579 ◽  
Author(s):  
Rita Delgado ◽  
Judite Costa ◽  
Krassimira P. Guerra ◽  
Luís M. P. Lima

The protonation constants of two series of tetraazamacrocyclic ligands with acetate and methylphosphonate pendant arms, as well as their stability constants with Cu2+, La3+, Sm3+, and Ho3+, were determined. All the values were determined in aqueous solution at 298.0 K and 0.10 mol dm–3 in N(CH3)4NO3. In the first series, the effect of both types of pendant arms was observed by appending them in the same macrocyclic backbone, a 14-membered tetraazamacrocycle containing pyridine (ac3py14, p2py14, and p3py14). In the second series, two effects were taken into account, the increase of the cavity size of the macrocycle, from 12- to 14-membered, and the appending of acetate (dota, trita, and teta) or methylphosphonate (dotp, tritp, and tetp) arms. The ligands containing methylphosphonate arms have higher thermodynamic stability compared to the corresponding ones with acetate arms, especially in the series of compounds containing pyridine, even upon correction of the different basicity values of the ligands. On the other hand, the ligands with smaller macrocyclic cavity size, namely, dota and dotp, exhibit the largest values of stability constants. In contrast, ac3py14 presents low stability constants with lanthanides. An interpretation of these features based on the known adopted arrangement of dota and teta when free or coordinated with lanthanides is evaluated.



2008 ◽  
Vol 47 (24) ◽  
pp. 11501-11513 ◽  
Author(s):  
Xueqin Song ◽  
Xiaoyan Zhou ◽  
Weisheng Liu ◽  
Wei Dou ◽  
Jingxin Ma ◽  
...  




Sign in / Sign up

Export Citation Format

Share Document