engleski

The effect of the structural variations on the incidence of the NTB phase

Contiunig our research in the field of flexible bent-shaped dimers displaying controversal NTB phase we prepared and characterized a range of imino-linked dimeric molecules with variant mesogenic units and terminal chain lengths. Utilization of various aromatic groups enables investigation not only geometrical factors but also electronic aspect influencing formation of the NTB phase. Combined experimental and computational studies showed that the incidence of the NTB phase and its thermal stability are highly sensitive to variations in the molecular structure and suggest that within a given series of materials the incidence of the NTB phase is governed by the synergy of the particular geometrical factors and anisotropy of the electrostatic potential distribution of the mesogenic core.

liquid crystals; dimers; NTB mesophase

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