The Influence of the Alkyl Chain Length and Steric Effect on Stability Constants and Extractability of Co(II) Complexes with 1‐Alkyl‐4(5)‐methylimidazoles

References

• Cote , G. 2000 . Hydrometallurgy of Strategic Metals . Solvent Extr. Ion Exc. , 18 ( 4 ) : 703 – 727 .
   Web of Science ®Google Scholar
• Sarangi , K. , Reddy , B. R. and Das , R. P. 1999 . Extraction Studies of Cobalt(II) and Nickel(II) from Hydrochloric Acid Solutions using Na‐Cyanex 272: Separation of Co(II)/Ni(II) by the Sodium Salts of D2EHPA, PC‐88A and Cyanex 272 and their Mixtures . Hydrometallurgy , 52 : 253 – 265 .
   Web of Science ®Google Scholar
• Zhang , P. and Inoue , K. 1996 . Extraction an Selective Stripping of Molybdenum(VI) and Vanadium(IV) from Sulfuric Acid Solution Containing Aluminium(II), Cobalt(II), Nickel(II) and Iron(II) by LIX 63 in Exxsol D80 . Hydrometallurgy , 41 : 45 – 53 .
   Web of Science ®Google Scholar
• Przeszlakowski , S. and Wydra , H. 1982 . Extraction of Nickel, Cobalt and Other Metals [Cu, Zn, Fe(III)] with a Commercial b‐Diketone Extractant . Hydrometallurgy , 8 : 49 – 64 .
   Web of Science ®Google Scholar
• Wassink , B. , Dreisinger , D. and Howard , J. 2000 . Solvent Extraction Separation of Zinc and Cadmium From Nickel and Cobalt Using Aliquat 336, a Strong Base Anion Exchanger, in the Chloride and Thiocyanate Forms . Hydrometallurgy , 57 : 235 – 252 .
   Web of Science ®Google Scholar
• Zhou , T. and Pesic , B. 1997 . A Pyridyne‐based Chelating Solvent Extraction System for Selective Extraction of Nickel and Cobalt . Hydrometallurgy , 46 : 37 – 53 .
   Web of Science ®Google Scholar
• Cupery , M. E. N‐Imidazole Compounds and Their Complex Metal Derivatives . 3,843,667 . October 22 . U.S. Patent
   Google Scholar
• Schaekers , J. M. and Dupreez , J. G.H. Solvent Extraction Mixture Comprising Substituted Imidazole or Benzimidazole for Purification of Groups of Base Metals. U.S. Patent . 2004/0208808 A1 . October 21, 2004 .
   Google Scholar
• Lenarcik , B. , Barszcz , B. and Kulig , J. 1977 . Stability and Structure of Transition Metal Complexes with Azoles in Aqueous Solution. Part XI. A Study on Complex Formation Between N‐Butylimidazole and Co(II), Ni(II), Cu(II) and Zn(II) . Roczniki Chem. , 51 : 1315 – 1322 .
   Web of Science ®Google Scholar
• Lenarcik , B. and Barszcz , B. 1977 . Stability and Structure of Transition Metal Complexes with Azoles in Aqueous Solution. Part XIV. Complex Formation Between N‐Methylimidazole and Co(II), Ni(II), Cu(II) and Zn(II) . Roczniki Chem. , 51 : 1849 – 1855 .
   Web of Science ®Google Scholar
• Lenarcik , B. and Barszcz , B. 1979 . Stability and Structure of Transition Metal Complexes with Azoles in Aqueous Solution. Part XIX. Structural Effects During Complexation of Co(II), Ni(II), Cu(II) and Zn(II) with 1‐Ethylimidazole and 1‐Propylimidazole . Polish J. Chem. , 53 : 963 – 971 .
   Google Scholar
• Lenarcik , B. and Kurdziel , K. 1981 . Stability and Structure of Transition Metal Complexes with Azoles in Aqueous Solutions. Part XXIII. Effect of the Position of Methyl Substituents on the Complex‐Forming Capacity of Imidazoles . Polish J. Chem. , 55 : 737 – 745 .
   Google Scholar
• Lenarcik , B. , Czopek , R. and Kurdziel , K. 1991 . Research for Optimum Conditions for Extraction of Metal Complexes by Alkylimidazoles. Part IV. The Influence of Steric Effect on the Extraction of the Complexes of 2‐Ethylimidazole with Co(II), Ni(II), Zn(II) and Cd(II) . Polish J. Chem. , 65 : 837 – 843 .
   Google Scholar
• Lenarcik , B. , Głowacki , J. and Rzepka , M. 1979 . Search for Optimum Conditions of Extraction of Transition Metal Complexes with Alkylimidazoles. I. Extraction of the Co(II), Ni(II) and Zn(II) Complexes of 1‐Methylimidazole and of the Co(II) and Zn(II) Complexes of 2‐Methylimidazole . Sep. Sci. Technol. , 14 : 37 – 54 .
   Web of Science ®Google Scholar
• Lenarcik , B. , Adach , A. and Radzymińska‐Lenarcik , E. 1999 . The Influence of Steric Effect and Alkyl Chain Length on Extraction of the Complexes of Co(II), Ni(II), Cu(II), Zn(II) and Cd(II) with 1‐alkyl‐2‐Methylimidazoles . Polish J. Chem. , 73 : 1273 – 1281 .
   Google Scholar
• Lenarcik , B. , Kulig , J. and Laidler , P. 1974 . Stability and Structure of Transition Metal Complexes with Azoles in Aqueous Solution. Part II. 2‐Methylimidazole Complexes of Co(II), Cu(II) and Zn(II) . Roczniki Chem. , 48 : 1151 – 1157 .
   Web of Science ®Google Scholar
• Lenarcik , B. and Obłąk , K. 1977 . Stability and Structure of Transition Metal Complexes with Azoles in Aqueous Solutions. Part XV. A Study on Complex Formation between 4‐Methylimidazole and Co(II), Ni(II) and Zn(II) . Roczniki Chem. , 51 : 2079 – 2087 .
   Google Scholar
• Lenarcik , B. and Barszcz , B. 1980 . Stability and Structure of Transition‐Metal Complexes of Azoles in Aqueous Solution. Part 21. A Comparison of the Complex‐Forming Capacity of 1,2‐Dimethylimidazole with that of Other 1,3‐Diazoles . J. Chem. Soc. Dalton Trans , : 24 – 28 .
   Google Scholar
• Lenarcik , B. , Kurdziel , K. and Czopek , R. 1991 . Stability and Structure of Transition Metal Complexes of Azoles in Aqueous Solution. Part XXVIII. The Steric Effect in the Complex Formation of 2‐n‐Propylimidazole and 2‐Isopropylimidazole . Polish J. Chem. , 65 : 815 – 820 .
   Google Scholar
• Lenarcik , B. , Kurdziel , K. and Czopek , R. 1991 . Stability and Structure of Transition Metal Complexes with Azoles in Aqueous Solution. Part XXIX. The Influence of the Size and Structure of the Alkyl Group on the Formation of 2‐Alkylimidazole Complexes . Polish J. Chem. , 65 : 1235 – 1241 .
   Google Scholar
• Sigel , H. , Saha , A. , Saha , N. , Carloni , P. , Kapinos , L. E. and Griesser , R. 2000 . Evaluation of Intramolecular Equilibria in Complexes Formed Between Substituted Imidazole Ligands and Nickel(II), Copper(II) or Zinc(II) . J. Inorg. Biochem. , 78 : 129 – 137 .
   PubMed Web of Science ®Google Scholar
• Lenarcik , B. and Ojczenasz , P. 2002 . The Influence of the Size and Position of the Alkyl Groups in Alkylimidazole Molecules on Their Acid±Base Properties . J. Heterocyclic Chem. , 39 : 287 – 290 .
   Web of Science ®Google Scholar
• Lenarcik , B. and Ojczenasz , P. 2004 . Investigation of the Stability of Co(II) Complexes with a Homologous Series of 1‐alkylimidazoles in Aqueous Solutions by Using a Partition Method with Several Solvents . Sep. Sci. Technol. , 39 : 199 – 226 .
   Web of Science ®Google Scholar
• Lenarcik , B. and Kierzkowska , A. 2004 . The Influence of Alkyl Chain Length and on Stability Constants of Zn(II) Complexes with 1‐alkylimidazoles in Aqueous Solutions and Their Partition Between Aqueous Phase an Organic Solvent . Solvent Extr. Ion Exch. , 22 ( 4 ) : 449 – 471 .
   Google Scholar
• Lenarcik , B. and Rauckyte , T. 2004 . The Influence of Alkyl Chain Length on Extraction Equilibria of Ni(II) Complexes with 1‐alkylimidazoles in Aqueous Solution/Organic Solvent System . Sep. Sci. Technol. , 14 : 3353 – 3372 .
   Google Scholar
• Lenarcik , B. and Kierzkowska , A. 2004 . The Influence of Alkyl Chain Length and Steric Effect on Stability Constants and Extractability of Zn(II) Complexes with 1‐alkyl‐4‐methylimidazoles . Sep. Sci. Technol. , 39 ( 15 ) : 3485 – 3508 .
   Google Scholar
• Marcus , Y. 1992 . “ Principles of solubility and solutions ” . In Principles and Practices of Solvent Extraction Edited by: Rydberg , J. , Musikas , C. and Choppin , G. R. Vol. 1 , 22 – 24 . New York : Marcel Dekker, Inc .
   Google Scholar
• Pernak , J. , Krysinski , J. and Skrzypczak , A. 1987 . Bakterizide Wirkung von Iminiumverbindungen . A. Tenside, Surfactants Deter , 24 ( 5 ) : 276 – 279 .
   Google Scholar
• Scharlo , G. 1962 . Metody Analityceskoj Chimiji Vol. 2 , Chimija, , Moskva : Kolicestvennyj Analiz Nieorganiceskich Sojedinenij . 7999,910
   Google Scholar
• Kolarov , N. Z. 1941 . Anal. Chem. , 22 : 399
   Google Scholar
• Braibanti , A. , Ostacoli , G. , Paoletti , P. , Pettit , L. D. and Sammartano , S. 1987 . Potentiometric Apparatus and Technique for the pH‐metric Measurement of Metal‐Complex Equilibrium Constants . Pure Applied Chem. , 59 : 1721 – 1728 .
   Web of Science ®Google Scholar
• Alegret , S. 1988 . Developments in Solvent Extraction Chichester, , England : Horwood Ltd .
   Google Scholar
• Rydberg , J. 1950 . On the Complex Formation Between Thorium and Acetylacetone . Acta Chem.Scand. , 4 : 1503 – 1522 .
   Google Scholar
• Rossotti , F. J.C. and Rossotti , H. 1961 . The Determination of Stability Constants New York : McGraw‐Hill .
   Google Scholar
• Lenarcik , B. , Kurdziel , K. and Czopek , R. 1986 . Search for Optimum Conditions of Extraction of Metal Complexes with Alkylimidazoles. III. Structure‐Extractability Relationship for 1,4‐Dimethylimidazole Complexes of Co(II), Ni(II), Cu(II), Zn(II) and Cd(II) . Solvent Extr. Ion Exch. , 4 : 165 – 182 .
   Web of Science ®Google Scholar