Template synthesis, structural and biological studies of new tetraazamacrocyclic complexes of lead(II)

Citation
A. Bansal et V. Singh, Template synthesis, structural and biological studies of new tetraazamacrocyclic complexes of lead(II), BOL SOC CH, 45(3), 2000, pp. 479-486
Citations number
23
Categorie Soggetti
Chemistry
Journal title
BOLETIN DE LA SOCIEDAD CHILENA DE QUIMICA
ISSN journal
03661644 → ACNP
Volume
45
Issue
3
Year of publication
2000
Pages
479 - 486
Database
ISI
SICI code
0366-1644(200009)45:3<479:TSSABS>2.0.ZU;2-S
Abstract
This paper decribes the synthesis and characterization of several new tetra azamacrocyclic complexes of Pb(ll). The template condensation of adipic aci d with primary diamines, be., ethylenediamine and propylenediamine in the p resence of lead salts resulted in the formation of macrocyclic complexes. T he geometry and the mode of bonding of the resulting complexes have been in ferred from chemical analysis, IR and (HNMR)-H-1 spectral studies, molecula r weight determinations and conductivity measurements. An octahedral geomet ry around the lead ion is suggested for the [(PbMac(n))X-2] (X = Cl, NO3 or CH,COO) complex. Based on molecular weight determinations and conductivity measurements, their monomeric and non-electrolytic nature has been confirm ed, The biological activities of all the lead salts and their metal complex es have been studied by screening the compounds against organisms such as, E. coli, S. aureus, F: oxysporum and A. alternata and the results have been compared.