Formation constants of some bivalent 3d metal ion complexes with isatin-3-phenyl imine in aqueous dioxane

1997 ◽  
Vol 109 (5) ◽  
Author(s):  
Bader Muneer ◽  
G Vijaya Laxmi ◽  
G Seshikala
1976 ◽  
Vol 31 (8) ◽  
pp. 1096-1098 ◽  
Author(s):  
Pavan Mathur ◽  
D. P. Goel ◽  
R. P. Singh

The consecutive formation constants of 1:1, 2:1, 3:1 chelate species formed by the interaction of di-p-tolyl-thiovioluric acid (D-p-TOTVA) with the tripositive lanthanons and yttrium cations were determined potentiometrically at 0.1 µ (NaClO4) at 30± 1°C, in 75% aqueous dioxan.The 1:1 formation constants (log K1) for the complexes increase with the increase in the atomic number of the lanthanon (3), with a break at gadolinium.The results indicate that the ligand bonds bidentately to heavier lanthanons (smaller ionic radii). However, definite dentate character of bonding to lighter (larger ionic radii) lanthanons could not be established.


Author(s):  
Heidi Linjalahti ◽  
Guoqiang Feng ◽  
Juan C. Mareque-Rivas ◽  
Satu Mikkola ◽  
Nicholas H. Williams

1989 ◽  
Vol 61 (9) ◽  
pp. 1593-1596 ◽  
Author(s):  
L. J. Rodriguez ◽  
M. Xu ◽  
E. M. Eyring ◽  
S. Petrucci

2021 ◽  
pp. 131291
Author(s):  
Ahmed S. Faihan ◽  
Mohammad R. Hatshan ◽  
Ali S. Alqahtani ◽  
Fahd A. Nasr ◽  
Subhi A. Al-Jibori ◽  
...  

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