Synthesis and fluorescence properties of hexameric and octameric subphthalocyanines based cyclic phosphazenes

Çoşut, Bünyemin; Yeşilot, Serkan; Durmuş, Mahmut; Kılıç, Adem

doi:10.1016/j.dyepig.2013.03.028

Cited by 27 publications

(10 citation statements)

References 26 publications

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“…On the other hand, solution concentrations of PDEAHP and PHB made hyperchromic effect on Q band. This feature could be attributed to increasing of the intermolecular non-covalent π-π interactions among the molecules in the higher concentrations [19]. The intermolecular polymer-solvent affinity force is weaker than polymer-polymer association when polymer-polymer aggregation arises.…”

Section: Fluorescence Characteristicsmentioning

confidence: 97%

Novel Multicolor Schiff Base Polymers Prepared via Oxidative Polycondensation

Kaya

Kılavuz

2015

J Fluoresc

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A series of diimine Schiff bases and their polymers were synthesized via the oxidative polycondensation reaction. The structures of the compounds were confirmed by (1)H-NMR, (13)C-NMR, FT-IR and UV-vis spectral measurements. Electrochemical and optical band gap values of synthesized compounds were determined by cyclic voltammetry (CV) and UV-vis measurements, respectively. Fluorescence measurements of the compounds were conducted in various solvents. The effects of solution concentration on the fluorescence spectra were investigated and quantum yield was calculated for the polymer of 5-(diethylamino)-2-(biphenylmethylene) hydrazonomethylphenol (PDEAHP). According to fluorescence measurements, the quantum yield of PDEAHP was found as 16% in DMF solution. Thermal characteristics of polymers were studied by TG-DTA and DSC analyses.

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Section: Fluorescence Characteristicsmentioning

confidence: 97%

Novel Multicolor Schiff Base Polymers Prepared via Oxidative Polycondensation

Kaya

Kılavuz

2015

J Fluoresc

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“…As expected, the FTIR spectra feature bands at ñ = 1201 cm À1 for P=N and ñ = 991 cm À1 for PÀO for the cyclophosphazene ring. [9] 31 P NMR spectroscopy showed a sharp singlet at d = 7.797 ppm, which indicated the complete substitution of the cyclophosphazene rings. The solvothermal reaction of Cd(NO 3 ) 2 ·4 H 2 O and the organic ligand in a mixture of N,N-dimethylformamide (DMF) and H 2 O under acidic conditions at 373 K for 24 h afforded the Cd MOF as colorless needle-shaped crystals.…”

Section: Synthesis and Characterizationmentioning

confidence: 98%

Synthesis, Characterization, and Luminescence Modulation of a Metal–Organic Framework Based on a Cyclotriphosphazene‐Functionalized Multicarboxylate Ligand

et al. 2016

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By using a multicarboxylate ligand consisting of six peripheral 1,3‐benzenedicarboxylalte units connected to the central cyclotriphosphazene ring through a P−O−C spacer, a novel metal–organic framework, [Cd5L(H2O)4]⋅2 (CH3)2NH2⋅6 DMF (L=hexakis(3,5‐dicarboxylatephenyloxy)cyclotriphosphazene), was solvothermally synthesized and characterized by single‐crystal and powder XRD, thermal gravimetric analysis, and IR and photoluminescence spectroscopy. Single‐crystal XRD analyses show that the framework is an anionic 3D network assembled from pentanuclear [Cd5(COO)10] secondary building units and organic linkers. TOPOS software analyses indicate that two alternative simplifications based on the organic linkers can produce five‐connected uninodal bnn‐type topology or novel (2,3,6,10)‐connected five‐nodal topology. Additionally, it is interesting that the luminescence intensity of the complex can be modulated by postsynthetic ion exchange. This study highlights that cyclotriphosphazene‐functionalized multicarboxylates, with the combined advantages of conformation diversity and easy functionalization, are a promising type of organic ligand for the synthesis of metal–organic frameworks with fascinating structures and interesting properties.

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“…The tetrachloroferrocenylphosphazenes (1)(2)(3)(4)(5) were synthesized from the reactions of N3P3Cl6 with ferrocenylamines according to the methods reported in the literature [14, 15]. The same procedure used for 6 was followed for the synthesis of 7; using 2 (1.0 g, 1.37 mmol), ethyl-4-hydroxybenzoate (0.91 g, 5.47 mmol) and potassium carbonate (2.0 g).…”

Section: Synthesis Of Ferrocenylphosphazene Derivativesmentioning

confidence: 99%

“…The starting compounds (1)(2)(3)(4)(5) were synthesized in accordance with the published procedure [14,15]. These precursor compounds have four reactive P-Cl bonds which may be replaced by the nucleophiles.…”

Section: Synthesis and Characterizationmentioning

confidence: 99%