Details

Autor(en) / Beteiligte

• Shikhaliyev, Namiq Q
• Kuznetsov, Maxim L
• Maharramov, Abel M
• Gurbanov, Atash V
• Ahmadova, Nigar E
• Nenajdenko, Valentine G
• Mahmudov, Kamran T
• Pombeiro, Armando J. L

Titel

Noncovalent interactions in the design of bis-azo dyes

Ist Teil von

• CrystEngComm, 2019, Vol.21 (34), p.532-538

Ort / Verlag

Cambridge: Royal Society of Chemistry

Erscheinungsjahr

2019

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A series of new (1 E ,1′ E )-2,2′-((perfluoro-1,4-phenylene)bis(2,2-dichloroethene-1,1-diyl))bis(1-( para -substituted phenyl)diazenes) have been synthesized via CuCl catalyzed olefination of the corresponding Schiff bases with CCl 4 in the presence of tetramethylethylenediamine (TMEDA) in DMSO. Cl O and Cl F types of halogen bonds were found in these bis-azo dyes, which depend on the electron-donating or -accepting properties of the para -substituent (-OCH 3 , -CH 3 , -H, -F) of the azoaromatic ring. DFT calculations demonstrate that noncovalent interactions play a significant role in the stabilization of the intermolecular networks of the structures under study. A perfluorinated aromatic link was used as a synthon in the design of bis-azo dyes.