Some nickel(II) complexes of n-hydroxyethyl and n-hydroxypropylsalicylaldimines

Hill, H. Allen O.; Zarb-Adami, Noel

doi:10.1016/0022-1902(75)80867-0

Cited by 12 publications

(1 citation statement)

References 9 publications

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“…Tri- and terdentate Schiff bases may contain ONO or ONS donor atoms. Their metal complexes may be monomeric, dimeric, trimeric or tetrameric with abnormal magnetic properties and characteristic structures [ 14 , 15 , 16 ]. In the present investigation we describe the synthesis, characterization, and antimicrobial activity of transition metal complexes of a novel Schiff’s base hydrazone containing the quinoline moiety; o -hydroxyacetophenone-7-chloro-4-quinoline hydrazine ( HL ).…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization and Biological Activities of Cu(II), Co(II), Mn(II), Fe(II), and UO2(VI) Complexes with a New Schiff Base Hydrazone: O-Hydroxyacetophenone-7-chloro-4-quinoline Hydrazone

Al-Shaalan

2011

Molecules

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The Schiff base hydrazone ligand HL was prepared by the condensation reaction of 7-chloro-4-quinoline with o-hydroxyacetophenone. The ligand behaves either as monobasic bidentate or dibasic tridentate and contain ONN coordination sites. This was accounted for be the presence in the ligand of a phenolic azomethine and imine groups. It reacts with Cu(II), Ni(II), Co(II), Mn(II), UO2 (VI) and Fe(II) to form either mono- or binuclear complexes. The ligand and its metal complexes were characterized by elemental analyses, IR, NMR, Mass, and UV-Visible spectra. The magnetic moments and electrical conductance of the complexes were also determined. The Co(II), Ni(II) and UO2 (VI) complexes are mononuclear and coordinated to NO sites of two ligand molecules. The Cu(II) complex has a square-planar geometry distorted towards tetrahedral, the Ni(II) complex is octahedral while the UO2 (VI) complex has its favoured heptacoordination. The Co(II), Mn(II) complexes and also other Ni(II) and Fe(III) complexes, which were obtained in the presence of Li(OH) as deprotonating agent, are binuclear and coordinated via the NNNO sites of two ligand molecules. All the binuclear complexes have octahedral geometries and their magnetic moments are quite low compared to the calculated value for two metal ions complexes and thus antiferromagnetic interactions between the two adjacent metal ions. The ligand HL and metal complexes were tested against a strain of Gram +ve bacteria (Staphylococcus aureus), Gram −ve bacteria (Escherichia coli), and fungi (Candida albicans). The tested compounds exhibited high antibacterial activities.

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Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization and Biological Activities of Cu(II), Co(II), Mn(II), Fe(II), and UO2(VI) Complexes with a New Schiff Base Hydrazone: O-Hydroxyacetophenone-7-chloro-4-quinoline Hydrazone

Al-Shaalan

2011

Molecules

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ChemInform Abstract: NICKEL(II) COMPLEXES OF N‐HYDROXYETHYL‐ AND N‐HYDROXYPROPYLSALICYLALDIMINES

Hill¹,

Zarb-Adami²

1976

Chemischer Informationsdienst

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Struktur‐Reaktivitäts‐Beziehungen bei koordinativ ungesättigten Chelatkomplexen. III. Vergleich des Akzeptorverhaltens der Nickel‐ und Cobalt(II)‐Chelate von dreizähnigen, dianionischen Schiffschen Basen

Jger

Mller

1981

Zeitschrift anorg allge chemie

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Die Reaktionsfähigkeit von Nickel‐ und Cobalt‐Chelaten des Typs 3 gegenüber verschiedenen Donatoren wird durch Isolierung stabiler Addukte verglichen. Im Fall der Nickel‐Chelate wird die Reaktivität stark durch die Substituenten R1 und R2 beeinflußt. Gegenüber N‐Donatoren besteht eine ausgeprägte Differenzierung zwischen äquatorialer und axialen Koordinationslücken. Die Cobalt(II)‐Chelate, die alle zum high‐spin‐Typ gehören, bevorzugen allgemein O‐Donatoren. Die komplizierte Zusammensetzung der Addukte deutet auf Mehrkernstrukturen hin. Mit Pyridin wurden high‐spin‐Diaddukte, vermutlich mit Koordinationszahl 5 des Zentralatoms, isoliert.

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Some nickel(II) complexes of n-hydroxyethyl and n-hydroxypropylsalicylaldimines

Cited by 12 publications

References 9 publications

Synthesis, Characterization and Biological Activities of Cu(II), Co(II), Mn(II), Fe(II), and UO2(VI) Complexes with a New Schiff Base Hydrazone: O-Hydroxyacetophenone-7-chloro-4-quinoline Hydrazone

Synthesis, Characterization and Biological Activities of Cu(II), Co(II), Mn(II), Fe(II), and UO2(VI) Complexes with a New Schiff Base Hydrazone: O-Hydroxyacetophenone-7-chloro-4-quinoline Hydrazone

ChemInform Abstract: NICKEL(II) COMPLEXES OF N‐HYDROXYETHYL‐ AND N‐HYDROXYPROPYLSALICYLALDIMINES

Struktur‐Reaktivitäts‐Beziehungen bei koordinativ ungesättigten Chelatkomplexen. III. Vergleich des Akzeptorverhaltens der Nickel‐ und Cobalt(II)‐Chelate von dreizähnigen, dianionischen Schiffschen Basen

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