New chiral Schiff's bases with a 1,3,4‐thiadiazole ring in the mesogenic core: synthesis, mesomorphic and ferroelectric properties

M. Parra Corresponding author Facultad de Ciencias Químicas, Departamento de Química Orgánica, Universidad de Concepción, Casilla 160‐C, Concepción, Chile

J. Vergara Facultad de Ciencias Químicas, Departamento de Química Orgánica, Universidad de Concepción, Casilla 160‐C, Concepción, Chile

C. Zúñiga Facultad de Ciencias Químicas, Departamento de Química Orgánica, Universidad de Concepción, Casilla 160‐C, Concepción, Chile

E. Soto Facultad de Ciencias Químicas y Farmacéuticas, Departamento de Química Orgánica y Físico‐Química, Universidad de Chile, Olivos 1007, Independencia, Santiago, Chile

T. Sierra Facultad de Ciencias‐Instituto de Ciencia de Materiales de Aragón, Química Orgánica, Universidad de Zaragoza‐C.S.I.C., 50009‐Zaragoza, España

J. L. Serrano Facultad de Ciencias‐Instituto de Ciencia de Materiales de Aragón, Química Orgánica, Universidad de Zaragoza‐C.S.I.C., 50009‐Zaragoza, España

Abstract

Two new homologous series of chiral esters derived from Schiff's bases containing a 1,3,4‐thiadiazole unit (series 6 and 7) were synthesized and their liquid crystalline and ferroelectric properties investigated. All the compounds of series 6 exhibit SmC*–SmA dimorphism and the compounds of series 7 exhibit a SmC* phase. All the compounds of these series are ferroelectric liquid crystals.

Acknowledgement

This work was supported by FONDECYT (Grants 1030696 and 7030014) and ‘Dirección de Investigación, Universidad de Concepción’.

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New chiral Schiff's bases with a 1,3,4‐thiadiazole ring in the mesogenic core: synthesis, mesomorphic and ferroelectric properties

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New chiral Schiff's bases with a 1,3,4‐thiadiazole ring in the mesogenic core: synthesis, mesomorphic and ferroelectric properties

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