Geometric aspects influencing N-NTB transition - implication of intramolecular torsion

被引：39

作者：

Lesac, Andreja ^{[1
]}

Baumeister, Ute ^{[2
]}

Dokli, Irena ^{[1
]}

Hamersak, Zdenko ^{[1
]}

Ivsic, Trpimir ^{[1
]}

Kontrec, Darko ^{[1
]}

Viskic, Marko ^{[1
]}

Knezevic, Anamarija ^{[1
]}

Mandle, Richard J. ^{[3
]}

机构：

[1] Rudjer Boskovic Inst, Div Organ Chem & Biochem, Zagreb, Croatia

[2] Martin Luther Univ Halle Wittenberg, Inst Chem, Phys Chem, Halle, Germany

[3] Univ York, Dept Chem, York, N Yorkshire, England

来源：

LIQUID CRYSTALS | 2018年 / 45卷 / 07期

关键词：

Bent-shape dimers; structure-property correlation; linking group conformations; N-TB phase; BEND NEMATIC PHASE; LIQUID-CRYSTAL DIMERS; TERMINAL CHAIN-LENGTH; MOLECULAR-GEOMETRY; MESOGENIC DIMERS; SOFT MATTER; BIMESOGENS; OLIGOMERS; PROGRESSION; DEPENDENCE;

D O I：

10.1080/02678292.2018.1453556

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Herein we report a comprehensive study on novel carbonyl- and ethenyl-linked symmetric dimers that combine synthesis, mesomorphic properties and molecular modelling. The study has been focused on the impact of geometry imposed by the linkage group on the incidence of the twist-bend nematic (N-TB) phase. Comparison of the mesomorphic properties of these two series complemented with computational studies of conformational space around the linkage group points molecular curvature and intramolecular torsion plays important role in the appearance of the N-TB phase and can be regarded as the basic structural requirements for design of new twist-bend nematogen materials. [GRAPHICS] .

引用

页码：1101 / 1110

页数：10

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