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A novel nunchaku-like organic second order nonlinear optical chromophore containing a D–π–A backbone and a rigid biphenylene unit was prepared. The UV–vis absorption spectra studies demonstrated that the large rigid structure could suppress dipole–dipole interactions effectively. The electro-optic coefficient of a poled film containing 20% wt of the new dye doped in amorphous polycarbonate afforded...
Mixed ligand complexes of Fe(II) with 2,2′-Bipyridyl (bipy) and some aromatic amines (L) (L = 3,4-diamino benzoic acid (DABA), 2-hydazinopyridine (hzpy) or 4-chloro-o-phenylenediamine (4-Cl-o-PDA) have been synthesized and characterized using IR, Mass, and UV–Vis spectrometry, magnetic susceptibility and thermal analysis. The complexes have been proved to have an octahedral geometry with equilibrium...
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