Synthesis and NLO properties of new trans 2-(thiophen-2-yl)vinyl heteroaromatic iodides.
The synthesis and characterisation of new trans 2-(thiophen-2-yl)vinyl pyridinium, imidazolium and quinoilinium iodides is reported together with their solvatochromic shifts and EFISH characterization. 2-{(E)-2-[5'-(dibutylamino)-2,2'-bithien-5-yl]vinyl}-1-methyl pyridinium and quinolinium iodides display high μ.β(vec) values up to 1200 × 10(-48) esu. The promising non-linear optical (NLO) properties of this new family of chromophores, which can be further improved by the design of highly efficient systems exploiting the donor and acceptor properties of both heteroaromatic rings and substituents, make them suitable candidates for second harmonic generation imaging with interesting biological applications.
Dipartimento di Scienze Chimiche, Università di Catania, Viale A. Doria, 6, 95125, Catania, Italy. cg.fortuna@unict.it
Cosimo Gianluca
CG
Fortuna
Carmela
C
Bonaccorso
Fadi
F
Qamar
Anu
A
Anu
Isabelle
I
Ledoux
Giuseppe
G
Musumarra
D007454:Iodides / Q000138:chemical synthesis*; D015394:Molecular Structure; D013876:Thiophenes / Q000737:chemistry*; D014753:Vinyl Compounds / Q000138:chemical synthesis*
D007454:Iodides; D013876:Thiophenes; D014753:Vinyl Compounds