Paramagnetic complexes of some d10 ions with a Schiff base ligand derived from 2,3-diamino-1,4-naphthoquinone and diacetylpyridine:: Antibacterial studies

被引：12

作者：

Anacona, JR ^{[1
]}

Moreno, A ^{[1
]}

机构：

[1] Univ Oriente, Dept Quim, Cumana, Venezuela

来源：

MAIN GROUP METAL CHEMISTRY | 1999年 / 22卷 / 09期

关键词：

D O I：

10.1515/MGMC.1999.22.9.573

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new Schiff base ligand LH2 was prepared by the reaction of 2,3-diamino-1,4-naphthoquinone with 2,6-diacetylpyridine. The formation and characterization of complexes of Zn(II), Cd(II), and Cu(I) with the semioxidized ligand LH is described. The [Zn(LH)Cl-2], [Cd(LH)Cl-2] and [Cu(LH)Cl.H2O] radical species are paramagnetics and the observed EPR signals in the solid state at room temperature, with g values close to the electron free g value are evidence for the semiquinonic character of the ligand. Attempts to prepare metal complexes of the Hg(II) or Ag(I) ions were unsuccessful. The antibacterial activity of the ligand and the metal complexes prepared were tested against four bacteria strains and compared with penicillin activity.

引用

页码：573 / 577

页数：5

共 23 条

[1]

Anacona JR, 1999, MAIN GROUP MET CHEM, V22, P243

[2]

ANACONA JR, 1999, IN PRESS J COORD CHE

[3]

BISHOP MM, 1978, J CHEM SOC CHEM COMM, P828, DOI 10.1039/c39780000828

[4] CHEMISTRY OF POLYDENTATE LIGANDS .8. PREPARATION AND PROPERTIES OF IRON(II) COMPLEXES WITH QUINQUEDENTATE MACROCYCLIC LIGANDS - CRYSTAL AND MOLECULAR-STRUCTURE OF A COMPOUND WHERE HIGH-SPIN FE-2 SITS IN THE LIGAND CAVITY - ELECTROCHEMISTRY OF A SERIES OF COMPLEXES WITH THE MACROCYCLES [J].