In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called N-Phenylfluorubine: one functional dye – chromophore, fluorophore, electron-acceptor and more, published in 2016, which mentions a compound: 56413-95-7, Name is 5,6-Dichloropyrazine-2,3-dicarbonitrile, Molecular C6Cl2N4, Recommanded Product: 5,6-Dichloropyrazine-2,3-dicarbonitrile.
We are presenting a new derivative of the fluorubine family which exhibits highly fluorescent activity. 5-Phenyl-dihydro[5,6,7,12,13,14]-hexaazapentacene was synthesized via two subsequent cyclization reactions starting from com. available starting materials. Its properties were studied intensively via UV-vis and fluorescence spectroscopy, as well as cyclic voltammetry and quantum chem. calculations Furthermore, we found a strong pH-sensitivity, which influences the photo- and electrochem. properties heavily. Thereby, it is possible to tune its properties from an electron-rich donor to a highly electron-deficient acceptor material.
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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate