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Anacona, J.R.; Bastardo, Erasto; Camús, Juan

doi:10.1023/a:1006997706762

Cited by 46 publications

(30 citation statements)

References 5 publications

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“…The disappearance of these bands and appearance of absorption band near ca. 1,590-1,610 cm )1 indicates the formation of macrocyclic Schiff's base [12,26] as these bands may be assigned due to m (C=N) [27,28]. The lower value of m(C=N) may be explained on the basis of a drift of lone pair density of azomethine nitrogen towards the metal atom [29,30] indicating that coordination takes place through nitrogen of C=N groups.…”

Section: Ir Spectramentioning

confidence: 99%

Synthesis and characterization of complexes of Co(II), Ni(II), Cu(II), Zn(II), and Cd(II) with macrocycle 3,4,11,12-tetraoxo-1,2,5,6,9,10,13,14-octaaza-cyclohexadeca-6,8,14,16-tetraene and their biological screening

Singh

Kumar

Malik

et al. 2007

Transition Met Chem

114

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A new series of complexes is synthesized by template condensation of glyoxal and oxalyldihydrazide in methanolic medium in the presence of divalent cobalt, nickel, copper, zinc and cadmium salts forming complexes of the type:3 ; OAc À1 . The complexes have been characterized with the help of elemental analyses, conductance measurements, magnetic susceptibility measurements, electronic, n.m.r., infrared and far infrared spectral studies. On the basis of these studies, a six coordinate octahedral geometry for these complexes has been proposed. The biological activities of the metal complexes have been tested in vitro against a number of pathogenic bacteria to assess their inhibiting potential. Most of the compounds have been found to exhibit remarkable antibacterial activities.

show abstract

Section: Ir Spectramentioning

confidence: 99%

Synthesis and characterization of complexes of Co(II), Ni(II), Cu(II), Zn(II), and Cd(II) with macrocycle 3,4,11,12-tetraoxo-1,2,5,6,9,10,13,14-octaaza-cyclohexadeca-6,8,14,16-tetraene and their biological screening

Singh

Kumar

Malik

et al. 2007

Transition Met Chem

114

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“…p-Phenylenediamine, 2-nitobenzaldehyde, (CH 3 COO) 2 Cu.H 2 O and (CH 3 COO) 2 Ni.4H 2 O were purchased from Loba cheime. Benzidine was purchased from Merck.…”

Section: Methodsmentioning

confidence: 99%

“…Transition metal ions with Schiff-bases have been extended enormously and embraced wide and diversified subjects comprising vast areas of organometallic compounds 1 and various aspects of biocoordination chemistry 2 . Schiff base ligands with donors N, O, S etc., have structural similarities with natural biological systems and imports and rasemination reaction in biological systems due to presence of imine (-N=CH-) group 3 .…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization and Biological Studies of Homobimetallic Schiff Base Cu(II) and Ni(II) Complexes

2013

Chem Sci Trans

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.4(OAc) (4) respectively. The four new homobimetallic complexes have been characterized by spectral techniques like elemental analysis, NMR, IR, UV Visible absorption, magnetic measurements, thermal, EPR, electrochemical studies and molar conductance. IR spectral data shows that the ligands are bidentate and the binding sites are azomethine nitrogen and free primary amine groups. Molar conductance measurements show that the complexes are electrolytes. EPR values and electronic spectral data suggest that it possesses square planar geometry. The Schiff base ligands and metal complexes were evaluated for antimicrobial activity against gram positive bacteria and gram negative bacteria. The ligands and its metal complexes were found to be biologically active. All the complexes show higher antimicrobial activity than the ligand and streptomycin.

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“…25 The magnetic moment value of 0.52 B.M. for the Ni(II) complex suggests a square planar environment of the structure.…”

Section: 24mentioning

confidence: 98%

Synthesis, characterization, biological studies, and molecular modeling of mixed ligand bivalent metal complexes of Schiff bases based on $N$-aminopyrimidine-2-one/2-thione

Soğukömeroğulları¹,

Tok²,

Yılmaz³

et al. 2015

Turk J Chem

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New mixed Schiff bases, Cu(II), Co(II), Ni(II), and Mn(II) complexes, were synthesized derived from 5chloro-2-hydroxyacethophenone and 1-amino-5-benzoyl-4-phenyl-1H-pyrimidine-2-one/thione. These complexes were characterized by elemental analysis, magnetic measurements, molar conductivity, IR, electronic, NMR, and mass spectral studies. All the complexes showed nonelectrolytic behavior. Moreover, the newly synthesized mixed ligand complexes were evaluated for their in vitro antimicrobial efficiency against bacteria and yeast. The compound named Co(L 1 L) had good antifungal activity against Candida species, but no profound antibacterial effect against bacterial strains. In addition, the ground state geometries of the complexes were optimized using a semi-empirical method at PM6 level, which is a suitable and effective basis set for organometallic and large structures to obtain information about their 3D geometries and electronic structures.

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Untitled

Cited by 46 publications

References 5 publications

Synthesis and characterization of complexes of Co(II), Ni(II), Cu(II), Zn(II), and Cd(II) with macrocycle 3,4,11,12-tetraoxo-1,2,5,6,9,10,13,14-octaaza-cyclohexadeca-6,8,14,16-tetraene and their biological screening

Synthesis and characterization of complexes of Co(II), Ni(II), Cu(II), Zn(II), and Cd(II) with macrocycle 3,4,11,12-tetraoxo-1,2,5,6,9,10,13,14-octaaza-cyclohexadeca-6,8,14,16-tetraene and their biological screening

Synthesis, Characterization and Biological Studies of Homobimetallic Schiff Base Cu(II) and Ni(II) Complexes

Synthesis, characterization, biological studies, and molecular modeling of mixed ligand bivalent metal complexes of Schiff bases based on $N$-aminopyrimidine-2-one/2-thione

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