UV absorbing zwitterionic pyridinium-tetrazolate: exceptional transparency/optical nonlinearity trade-off.
We present relevant results dealing with the transparency/optical nonlinearity trade-off in high-frequency electro-optic applications. The very simple, stable and high optical gap chromophore, the zwitterion 1-methyl-4-(tetrazol-5-ate)pyridinium, represents the best transparency/optical nonlinearity trade-off so far described in the literature. We rationalize this remarkable performance in the framework of the Bond Length Alternation theory by means of a multidisciplinary approach including: single crystal X-ray structure, Electric Field Induced Second-Harmonic Generation, solvatochromism, electrochemistry and thermal analyses.
Beverina
Luca
L
Dipartimento di Scienzadei Materiali and INSTM, Università di Milano-Bicocca, via R. Cozzi 53, 20125, Milano, Italy. luca.beverina@unimib.it
Sanguineti
Alessandro
A
Battagliarin
Glauco
G
Ruffo
Riccardo
R
Roberto
Dominique
D
Righetto
Stefania
S
Soave
Raffaella
R
Lo Presti
Leonardo
L
Ugo
Renato
R
Pagani
Giorgio A
GA
D018360:Crystallography, X-Ray; D008958:Models, Molecular; D015394:Molecular Structure; D011725:Pyridines / Q000737:chemistry*; D013777:Tetrazoles / Q000737:chemistry*; D014466:Ultraviolet Rays
D011725:Pyridines; D013777:Tetrazoles