Schiff base complexes of zirconium(IV) derived from Zr(acac)4

Mishra, Pallabi; Chakravortty, V.; Dash, K. C.

doi:10.1007/bf01127877

Cited by 10 publications

(5 citation statements)

References 17 publications

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“…The zirconium ion of Schiff base Zr complexes are generally in oxidation state (IV) due to its high charge-to-size ratio (Z 2 ⁄r = 22.22 e 2 m -10 ) [116,117], and used for their catalytic properties. For instance, the dinuclear stable light yellow Zr(IV) complex 1 (Fig.…”

Section: Pentadentate Schiff Base Zr(iv) Complexesmentioning

confidence: 99%

Recent developments in penta-, hexa- and heptadentate Schiff base ligands and their metal complexes

Liu

Hamon

2019

Coordination Chemistry Reviews

320

137

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Novel ligand platforms that promote reactivity are of long standing and continued interest in coordination chemistry, with Schiff base ligands and their metal complexes representing one of the most versatile and long standing topics of interest. The synthesis and structure of polydentate Schiff bases and their metal complexes is fascinating, because it reveals a great richness of structural, physico-chemical and catalytic properties. Given the simplicity and ease of access to multidentate Schiff bases and their metal complexes, investigation of such compounds is essential to precise and understand structure-property relationships in order to optimize and improve their use in a wide range of fields, including catalysis, supramolecular chemistry, magnetism, electrochemistry, nanoscience, energy materials, and biological applications. This review highlights the recent developments of pentadentate, hexadentate, heptadentate and macrocyclic Schiff base ligands containing various donor sets made of different combinations of N, O, S or P donor atoms and their metal complexes (essentially mononuclear), as well as presenting synthetic methods and interesting structures of complexes formed by first-to-third row transition metals (from group 4-12), main group elements, lanthanides and actinides. This review is divided into three main sections, each of them corresponding to one type of denticity of the Schiff base under consideration. Each category is described with representative examples according to a periodic order, and emphasis is given to the coordination aspects. Their catalytic, magnetic and biological properties are also outlined. This review that contains 359 references should act as a source of information to researchers interested to work in this domain and stimulate further investigation in this fascinating area of Schiff base coordination compounds.

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Section: Pentadentate Schiff Base Zr(iv) Complexesmentioning

confidence: 99%

Recent developments in penta-, hexa- and heptadentate Schiff base ligands and their metal complexes

Liu

Hamon

2019

Coordination Chemistry Reviews

320

137

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“…The Zr(iv) complex 2 was prepared from Zr(acac) 4 and the ligand H 2 sae according to a known procedure. 11 Recrystallisation of 2 from hot toluene produced crystals suitable for X-ray analysis. Complex 2 crystallises in a centrosymmetric dimeric form, 2-2, with the inversion centre in between the two zirconium atoms held together via two oxygens of the aminoethanolato-sidechains.…”

mentioning

confidence: 99%

X-Ray structure and solvolytic activity towards phosphate diesters of a zirconium(IV) complex

Stulz¹,

Leumann²

1999

Chem. Commun.

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“…Fragmentation also revealed the loss of Me-CO and Ar-CO from their chemical structures. A good physico chemical evidence for the presence of enolic and or ketonic tautomers of compounds I and III was deduced from free solubility of their Ar-NHCO derivatives in aqueous NaOH which confirm that the enolization forms take place towards aryl and or phenyl groups (Mishra et al, 1991).…”

Section: Journal Of Bioanalysis and Biomedicine -Open Accessmentioning

confidence: 82%

“…Both carbonyl compounds I-IV having a second carbonyl at b -position, are termed as b diketones. In general hydrogen bonding is possible only in syn form and not in anti form, where the orientation of enolization is towards the aryl or phenyl groups (Mishra et al, 1991) indicating the high enolic content of 4-aryl-1,3-diketones and not in 4-methyl-1,3diketones.…”

Section: Journal Of Bioanalysis and Biomedicine -Open Accessmentioning

confidence: 99%

“…The bdiketone 3-salicylidene-2, 4-pentanediones and related compounds have been used successfully as proper chelating agents for a series of metal ions (Mishra et al, 1991;Wang et al, 1997). Knoevenagel condensates of substituted benzylidenes with active methylene compounds have been performed efficiently using ultra stable Zeolite as heterogeneous catalyst (Veeraraj et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of Polyfunctional Organic Systems Containing 1-Acyl/Aroyl-anilido-butadienes and their uses as Photochemical Probes and Chelating Agents for Removal of Bismuth (III) from Industrial Wastewater

Makki¹,

Abdel‐Rahman²,

El-Shahawi³

2010

JBABM

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The present article reports the synthesis of a series of some new 1-acyl/ benzoyl-1-anilido-4-methyl /aryl-1, 3-butadiene derivatives (II-IV) by warming primary heteroamines and/ or sulfa drugs with pre heated ethyl acetoacetate and / or ethyl benzoylacetate in dry conditions followed by condensation with unsaturated aromatic aldehydes in boiling ethanol-piperidine. The chemical structures of the compounds were characterized via their elemental analysis and spectroscopic measurements (UV Vis., IR, 1 HNMR). Some of the compounds (IIId, e, f, IV d, e,f) were tested as antimicrobial and photochemical probe agents. Compound IVa was physically loaded onto polyurethane solid sorbent and successfully used for the removal and / or pre concentration of bismuth (III) from industrial wastewater. The voltammetric behavior of the two compounds IIa and IVa in N, N-dimethylformamide was investigated.

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Schiff base complexes of zirconium(IV) derived from Zr(acac)4

Cited by 10 publications

References 17 publications

Recent developments in penta-, hexa- and heptadentate Schiff base ligands and their metal complexes

Recent developments in penta-, hexa- and heptadentate Schiff base ligands and their metal complexes

X-Ray structure and solvolytic activity towards phosphate diesters of a zirconium(IV) complex

Synthesis of Polyfunctional Organic Systems Containing 1-Acyl/Aroyl-anilido-butadienes and their uses as Photochemical Probes and Chelating Agents for Removal of Bismuth (III) from Industrial Wastewater

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