Soluble and processable conjugated polyazines with oligo(p-phenylene vinylene)s

Mukherjee, Narayan; Sun, Chivin; Marie, Bilal; Jin, Shi; Peetz, Ralf M.

doi:10.1016/j.tetlet.2007.12.002

Cited by 5 publications

(1 citation statement)

References 12 publications

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“…Polyazines (PAZs) are well known polymeric materials, its synthesis can be traced back to as early as 1891 when Curtius obtained the ﬁrst insoluble microcrystalline PAZ from the reaction between a diacetyl compound and an equimolar hydrazine hydrate. [ 21 ] PAZs exhibit interesting properties such as thermal,[ 22 ] mechanical stability,[ 23 ] semi conductivity [ 24 ] and non-linear response. [ 25 ] They are very promising candidate for electronic, optoelectronic and photonics.…”

Section: Introductionmentioning

confidence: 99%

Investigation of aggregation induced emission in 4-hydroxy-3-methoxybenzaldehyde azine and polyazine towards application in (opto) electronics: synthesis, characterization, photophysical and electrical properties

Dineshkumar

Muthusamy

2016

Designed Monomers and Polymers

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An azine monomer 4-hydroxy-3-methoxybenzaldehyde azine was synthesized by refluxing with ethanolic solution of vanillin with hydrazine hydrate. It was then converted into polyazine by oxidative polymerization. The structure of azine and polyazine was characterized by FT-IR, UV–visible, 1H-NMR and 13C-NMR. Spectral results suggest the formation of polymer, through C–C and C–O–C coupling of the phenylene and oxyphenylene. The relationship between the structures and photophysical properties of azine and polyazine was studied. Both azine and polyazine show, aggregation induced emission with increase in concentration in DMSO solution. The single crystal structure of azine suggesting the various inter and intra molecular interactions rigidify the conformation and locked the intramolecular rotations of the phenyl rings in the molecule. The inhibition of intramolecular rotation, J- aggregation and increase of conjugation impart the fluorescence in aggregated state. Additionally, the electronic properties namely orbital energies and resulting energy gap calculated theoretically by density functional theory (DFT).

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