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Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.48A [2009] >
IJC-A Vol.48A(11) [November 2009] >
| Title: | Synthesis and characterization of complexes of Fe(III), Co(III), Ni(II), Cu(II), Zn(II) and UO22+ with p-tert-butylcalix[4]arene bearing two imine pendants linked through salicylyl moiety at the lower rim |
| Authors: | Dey, Mishtu
Chinta, Jugun Prakash
Long, Gary J
Rao, Chebrolu P |
| Keywords: | Coordination chemistry
Calixarenes
Calix[4]arene-imine conjugates
Iron
Cobalt
Nickel
Copper
Zinc
Uranium
FAB mass spectrometry
Magnetic susceptibility
Electron paramagnetic resonance
Mossbauer spectroscopy |
| Issue Date: | Nov-2009 |
| Publisher: | CSIR |
| IPC Code: | Int. Cl.9 C07F1/08; C07F3/06; C07F5/00; C07F15/00 |
| Abstract: | Metal ion
complexes of the double-armed p-tert-butylcalix[4]arene derivative
possessing imine functionality linked through salicylyl moiety at the lower rim has been synthesized for the
first time and characterized by analytical, spectral and magnetic methods. The
1, 3- di-calix[4]arene-imine conjugate exhibits variable coordination behavior,
from tetradentate to hexadentate, depending upon the metal ion to which it is bound,
by always acting as di-anionic. While it uses both the ether oxygens of the
pendants to coordinate in the case of Fe(III), Co(III) and Ni(II) complexes, it
uses only the pendant salicylidene moieties in the case of Cu(II) and Zn(II)
complexes. The Zn(II) complex catalysis ester hydrolysis through the formation
of Zn(II)-hydroxo species. |
| Page(s): | 1484-1491 |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Source: | IJC-A Vol.48A(11) [November 2009]
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