Multi-step functionalization of insoluble co-polymers of 4-vinylpyridine. Synthesis and characterization of two new metal ion-binding resins

1989 ◽  
Vol 10 (2-3) ◽  
pp. 131-141 ◽  
Author(s):  
Wilmer K. Fife ◽  
Amal Al Mubasher
Keyword(s):  
Metal Ion ◽  
Synthesis And Characterization ◽  
Ion Binding ◽  
Metal Ion Binding

scholarly journals Synthesis and Characterization of Alkali Metal Ion-Binding Copolymers Bearing Dibenzo-24-crown-8 Ether Moieties

Polymers ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1095 ◽  
Author(s):  
Da-Ming Wang ◽  
Yuji Aso ◽  
Hitomi Ohara ◽  
Tomonari Tanaka
Keyword(s):  
Aqueous Solution ◽  
Alkali Metal ◽  
Metal Ion ◽  
Radical Copolymerization ◽  
Synthesis And Characterization ◽  
Ion Binding ◽  
Metal Ion Binding ◽  
Cesium Ions ◽  
Nmr Signals

Dibenzo-24-crown-8 (DB24C8)-bearing copolymers were synthesized by radical copolymerization using a DB24C8-carrying acrylamide derivative and N-isopropylacrylamide monomers. The cloud point of the resulting copolymers changed in aqueous solution in the presence of cesium ions. In addition, the 1H NMR signals of DB24C8-bearing copolymers shifted in the presence of alkali metal. This shift was more pronounced following the addition of Cs+ compared to Rb+, K+, Na+, and Li+ ions due to recognition of the Cs+ ion by DB24C8.

Metal Ion Binding to Calixarenes: Pendent Arm Coordination Assisted by Self-Inclusion

1994 ◽  
Vol 47 (6) ◽  
pp. 1185 ◽  
Author(s):  
JM Harrowfield ◽  
M Mocerino ◽  
BW Skelton ◽  
CR Whitaker ◽  
AH White
Keyword(s):  
Structural Characterization ◽  
Metal Ion ◽  
Room Temperature ◽  
Ion Binding ◽  
Metal Ion Binding ◽  
Cone Conformation ◽  
X Ray ◽  
Partial Cone ◽  
Arm Coordination

The synthesis and room-temperature single-crystal X-ray structural characterization of 25,27- di(allyloxy)-5,17-di-t-butyl-26,28-dimethoxycalix[4]arene are recorded. Crystals are monoclinic, C2/c, a 29.089(5), b 10.742(2), c 26.218(8) Ǻ, β 110.09(2)°, Z = 8; the structure was refined to a residual of 0.065 for 4103 independent 'observed' [I > 3σ(I)] reflections. The flattened partial cone conformation of the molecule allows inclusion of one of the methoxy substituents in a way which could block inclusion of a metal ion capable of polyhapto aromatic coordination and which may therefore explain why solution n.m.r. measurements indicate that silver(I) binds to the pendent alkene groups.

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