3-Hydroxynaphthalene-2-carboxylic acid supported grid-like structure of cadmium chloride coordination polymer with 1,3-bis(4-pyridyl)propane

Phukan, Nithi; Baruah, Jubaraj B.

doi:10.1016/j.molstruc.2014.08.006

Cited by 7 publications

(4 citation statements)

References 39 publications

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“…Oximes are well-known to form molecular complexes. , t -Butylammonium cation encapsulations by hydrogen bonded assemblies of halide with oxime were reported earlier by us . Some oximes also get encapsulated in coordination polymers. , In the present case, the self-assembly of complex 3 has hydrated chloride ions that are hydrogen bonded to oximes providing spaces to encapsulate pentacoordinated copper(II) complex cations.…”

Section: Resultssupporting

confidence: 54%

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Copper(II), Zinc(II), and Cadmium(II) Formylbenzoate Complexes: Reactivity and Emission Properties

2019

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Synthesis, characterization, reactivity, and sensing properties of 4-formylbenzoate complexes of copper(II), zinc(II), and cadmium(II) possessing the 1,10-phenanthroline ancillary ligand are studied. The crystal structures of the (1,10-phenanthroline)bis(4-formylbenzoate)(aqua)copper(II) and (1,10-phenanthroline)bis(4-formylbenzo-ate)zinc(II) and a novel molecular complex comprising an assembly of mononuclear and dinuclear species of (1,10-phenanthroline)bis(4-formylbenzoate)cadmium(II) are reported. These zinc and cadmium complexes are fluorescent; they show differentiable sensitivity to detect three positional isomers of nitroaniline. The mechanism of sensing of nitroanilines by 1,10-phenanthroline and the complexes are studied by fluorescence titrations, photoluminescence decay, and dynamic light scattering. A plausible mechanism showing that 1,10-phenanthroline ligand-based emission quenched by electron transfer from the excited state of 1,10-phenanthroline to nitroaniline is supported by density functional theory calculations. In an anticipation to generate a fluorescent d10-copper(I) formylbenzoate complex by a mild reducing agent such as hydroxylamine hydrochloride for similar sensing of nitroaromatics as that of the d10-zinc and cadmium 4-formylbenzoate complexes, reactivity of d9-copper(II) with hydroxylamine hydrochloride in the presence of 4-formylbenzoic acid and 1,10-phenanthroline is studied. It did not provide the expected copper(I) complex but resulted in stoichiometry-dependent reactions of 4-formylbenzoic acid with hydroxylamine hydrochloride in the presence of copper(II) acetate and 1,10-phenanthroline. Depending on the stoichiometry of reactants, an inclusion complex of bis(1,10-phenanthroline)(chloro)copper(II) chloride with in situ-formed 4-((hydroxyimino)methyl)benzoic acid or copper(II) 4-(hydroxycarbamoyl)benzoate complex was formed. The self-assembly of the inclusion complex has the bis(1,10-phenanthroline)(chloro)copper(II) cation encapsulated in hydrogen-bonded chloride-hydrate assembly with 4-((hydroxyimino)methyl)benzoic acid.

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Section: Resultssupporting

confidence: 54%

“…71 Some oximes also get encapsulated in coordination polymers. 72,73 In the present case, the selfassembly of complex 3 has hydrated chloride ions that are hydrogen bonded to oximes providing spaces to encapsulate pentacoordinated copper(II) complex cations.…”

Section: ■ Results and Discussionmentioning

confidence: 87%

Copper(II), Zinc(II), and Cadmium(II) Formylbenzoate Complexes: Reactivity and Emission Properties

2019

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“…Alternative procedure by starting with cadmium nitrate tetrahydrate and 1,3‐di(pyridin‐4‐yl)propane in appropriate stoichiometry in the presence of respective guest molecules provide good isolated yields of CP‐2 and CP‐3 (Scheme ). Earlier study has shown that carboxylic acid was included as guest in sub‐assemblies of 4 × 4 metallacycles of cadmium coordination polymer . The present frame of the guest‐included coordination polymers are comprised of 2 × 2 metallacycles as repeat units where two independent molecules of 1,3‐di(pyridin‐4‐yl)propane hold two cadmium ions.…”

Section: Resultsmentioning

confidence: 99%

Inclusion of 2,4‐Dihydroxybenzaldehyde and 2,4‐Dihydroxybenzaldoxime in Cadmium Coordination Polymer and Conversion of Guest Aldehyde to Oxime

Tarai

Baruah

2017

ChemistrySelect

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A coordination polymer of cadmium nitrate with bridging ligand 1,3‐di(pyridin‐4‐yl)propane in which each cadmium ion has two chelated nitrate ions along with a water molecule is structurally characterised. Three component reactions of cadmium nitrate, 1,3‐di(pyridin‐4‐yl)propane together with 2,4‐dihydroxybenzaldehyde or 2,4‐dihydroxybenzaldoxime resulted in the formation of cadmium coordination polymers having 1,3‐di(pyridin‐4‐yl)propane as linkers encapsulating the aldehyde or the oxime in respective coordination polymer. These guest molecules are encapsulated between layers formed by hydrogen bonds among the chains of the coordination polymers where the nitro groups are vertically positioned in between the cationic chains assisting in formation of partitioned compartments to encapsulate guests. These guest included coordination polymers having the 2,4‐dihydroxybenzaldehyde or 2,4‐dihydroxybenzaldoxime guest molecules provided understanding on facilitation of the oximation reaction of aldehyde containing coordination polymer. Higher association ability of oxime over the aldehyde to the parent coordination polymer is found to be the driving force to facilitate the catalytic reaction.

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“…A search in the CCDC database concerning six-coordinate metal complexes with a MO 2 N 4 chromophore bearing two monodentate salicylato derivatives as ligands has revealed that in the majority of the reported complexes, especially in the co-existence of monodentate N-donor ligands [70][71][72], flexible N,N′-donor ligands [73][74][75] and planar N,N′,N″,N‴-donor porphyrinato derivatives [76], the salicylato ligands are in trans arrangement [70][71][72][73][74][75][76]; in fewer cases and especially in the co-existence of robust N,N′-donor ligands such as bipy and phen ligands, the salicylato ligands (including the bulky 3-hydroxy-2-naphthoato and 2-hydroxy-3,5-diisopropylbenzoato ligands) were found in cis positions [77][78][79][80], similarly to complex 2.…”

Section: Synthesis and Characterization Of The Complexesmentioning

confidence: 99%

Nickel-diflunisal complexes: synthesis, characterization, in vitro antioxidant activity and interaction with DNA and albumins

Perontsis

Hatzidimitriou

Papadopoulos

et al. 2016

Journal of Inorganic Biochemistry

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3-Hydroxynaphthalene-2-carboxylic acid supported grid-like structure of cadmium chloride coordination polymer with 1,3-bis(4-pyridyl)propane

Cited by 7 publications

References 39 publications

Copper(II), Zinc(II), and Cadmium(II) Formylbenzoate Complexes: Reactivity and Emission Properties

Copper(II), Zinc(II), and Cadmium(II) Formylbenzoate Complexes: Reactivity and Emission Properties

Inclusion of 2,4‐Dihydroxybenzaldehyde and 2,4‐Dihydroxybenzaldoxime in Cadmium Coordination Polymer and Conversion of Guest Aldehyde to Oxime

Nickel-diflunisal complexes: synthesis, characterization, in vitro antioxidant activity and interaction with DNA and albumins

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