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NLO-active Y-shaped ferrocene conjugated imidazole chromophores as precursors for SHG polymeric films

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Abstract

New Y-shaped ferrocene conjugated imidazole chromophores were prepared and fully characterized. The Y-shaped structure was confirmed by the single crystal X-ray diffraction technique. The chromophores show interesting second-order nonlinear optical (NLO) properties in solution, as determined by the Electric-Field Induced Second Harmonic generation (EFISH) technique. Remarkably, the trifluoro substituted compound 3 is characterized by a high μβEFISH value and has good potential as a molecular building block for composite films with Second Harmonic Generation (SHG) properties. For all compounds, the dipole moments and frontier orbital energies were calculated by the Density Functional Theoretical method.

Graphical abstract: NLO-active Y-shaped ferrocene conjugated imidazole chromophores as precursors for SHG polymeric films

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Article information


Submitted
11 Sep 2019
Accepted
08 Jan 2020
First published
08 Jan 2020

Dalton Trans., 2020, Advance Article
Article type
Paper

NLO-active Y-shaped ferrocene conjugated imidazole chromophores as precursors for SHG polymeric films

S. Prabu, E. David, T. Viswanathan, K. Thirumoorthy, T. Panda, C. Dragonetti, A. Colombo, D. Marinotto, S. Righetto, D. Roberto and N. Palanisami, Dalton Trans., 2020, Advance Article , DOI: 10.1039/C9DT03637G

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