Spectroscopic properties of two highly substituted PAH heteroanalogs: octakis(pyrazol-1-yl)naphthalene and octakis (3,5-dimethylpyrazol-1-yl)naphthalene
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چکیده
منابع مشابه
Absorption and fluorescence spectroscopic properties of 1- and 1,4-silyl-substituted naphthalene derivatives.
Silyl-substituted naphthalene derivatives at the 1- and 1,4-positions were synthesized and their UV absorption, fluorescence spectroscopic properties, and fluorescence lifetimes were determined. Analysis of the results shows that the introduction of silyl groups at these positions of the naphthalene chromophore/fluorophore causes shifts of the absorption maxima to longer wavelengths and increas...
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Crystalline 4-nitro-1-phenylimidazole, C9H7N3O2, (I), and 4'-nitro-1-phenyl-4,1'-biiimidazole, C12H9N5O2, (II), contain C-H...O and C-H...N hydrogen bonds, connecting the molecules into infinite chains. The aromatic fragments in both compounds are nearly planar. The dihedral angles between the benzene and imidazole rings are 26.78 (5) degrees in (I) and 29.36 (8) degrees in (II).
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ژورنال
عنوان ژورنال: Arkivoc
سال: 2000
ISSN: 1551-7012
DOI: 10.3998/ark.5550190.0001.412