Effect of Lateral Substitution on the Electronics and Phase Transitions of Stilbazoles, Benzoic Acids, Phenols, and Hydrogen Bonded Mixtures

J. R. Wolf
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Abstract

The preparation and characterization of laterally substituted 4-alkoxy-stilbazoles, 4-alkoxy-benzoic acids, and 4-alkoxy phenols and hydrogen bonded heterodimeric mixtures of these compounds are reported. Lateral substitution has a minimal effect on the ring electronics of 4-alkoxy benzoic acids and 4-alkoxy phenols; however the ring electronics of stilbazole units is extremely sensitive to lateral substitution. While lateral substitution is an effective technique for lowering the melting points of both hydrogen bonded complexes and their individual components, its effect on the electronics of stilbazoles and steric disruption of both intermolecular hydrogen bonding and molecular packing in the solid state disrupts the formation of liquid crystalline phases in both the individual components and hydrogen bonded complexes.
横向取代对二苯甲酸、苯甲酸、酚和氢键混合物的电子学和相变的影响
报道了横向取代的4-烷氧基二苯醚、4-烷氧基苯甲酸和4-烷氧基酚的制备和表征以及这些化合物的氢键异二聚体混合物。横向取代对4-烷氧基苯甲酸和4-烷氧基酚的环电子学影响很小;然而,二苯环基的环电子学对侧取代极为敏感。虽然横向取代是降低氢键配合物及其单个组分熔点的有效技术,但其对二苯环电子学的影响以及分子间氢键和分子填充在固态中的空间破坏破坏了单个组分和氢键配合物中液晶相的形成。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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