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Original Articles

Synthesis of 4′,5′-Bis(salicylideneimino)benzo[15-crown-5] and Its Complexes with Uranyl(VI), Copper(II), Nickel(II), and Cobalt(II)

, , , &
Pages 871-884 | Received 11 Nov 1985, Accepted 28 Apr 1986, Published online: 13 Dec 2006
 

Abstract

4′,5′-Bis(salicylideneimino)benzo{15-crown-5} (SALH2) has been synthesized from 4′,5′-diaminobenzo{15-crown-5} and salicylaldehyde. The crystalline sodium nitrate complex of the ligand (SALH2.NaNO3.H2O) has also been isolated. As an N2O2-donor ligand, SALH2 forms 1:1 metal complexes with various metals {SAL(M)xH2O where M = UO2(VI), Cu(II), or Ni(II)}. The octahedral Co(II) complex of SALH2 is capable of binding molecular oxygen. Also prepared were the complexes which simultaneously contain both sodium and transition metal ion. 1H-n.m.r., i.r., u.v.-visible, and conductance data are presented.

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