Liquid Crystalline Primary Benzamides

Beginn, Uwe; Lattermann, Günter

doi:10.1080/10587259408029758

Cited by 41 publications

(16 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[25] In contrast, 3,4,5-trialkoxybenzoic acids are not liquid crystals. [26] The supramolecularc hemistry shownb yt hese 3,5-dimethyl-4-(3,4,5-trialkoxyphenyl)pyrazolesc an be used as am odel or "generation-one" [1c] of larger generation dendrons with ap yrazole at the apex.…”

Section: Liquid Crystalline Properties and Self-organization Modelmentioning

confidence: 93%

Supramolecular Columnar Liquid Crystals with Tapered‐Shape Simple Pyrazoles Obtained by Efficient Henry/Michael Reactions

Blanco

Iguarbe

Barberá

et al. 2016

Chemistry A European J

View full text Add to dashboard Cite

A straightforward synthesis of mesogenic pyrazoles starting from benzaldehydes by a combination of efficient Henry and Michael reactions led to novel supramolecular liquid crystals. The mesogens are fluorescent 3,5-dimethyl-4-(di or trialkoxyphenyl)pyrazoles and, in spite of the tapered shape of these molecules and their structural simplicity (only one phenyl ring), columnar liquid-crystal phases were formed that are stable at room temperature. The self-assembled structure was studied by XRD and the columnar cross section contains two molecules on average with an antiparallel arrangement of pyrazoles interacting through hydrogen bonds. In contrast, the single-crystal structure of a trimethoxy analog did not show hydrogen-bonded pyrazoles but chains of head-to-tail arranged molecules.

show abstract

Section: Liquid Crystalline Properties and Self-organization Modelmentioning

confidence: 93%

Supramolecular Columnar Liquid Crystals with Tapered‐Shape Simple Pyrazoles Obtained by Efficient Henry/Michael Reactions

Blanco

Iguarbe

Barberá

et al. 2016

Chemistry A European J

View full text Add to dashboard Cite

show abstract

“…3,4,5-Tris(octyloxy)benzamide (=3CB-8), 3,4,5-tris(dodecyloxy)benzamide (=3CB-12) and 3,4,5-tris(tetradecyloxy)benzamide (=3CB-14) have been synthesized from the tris(alkoxy)benzoic acid chlorides according to the literature 5) . The compounds were purified by column chromatography, subsequently recrystallized from pentane and freeze dried prior to use from benzene.…”

Section: Resultsmentioning

confidence: 99%

“…7. Pure, solvent crystallized 3CB-8 melted at 78.5 8C into a columnar mesophase 5,8) and became isotropic at 88 8C. Embedded into the resins the melting peak of 3CB-8 was shifted to lower temperatures by 1-5 8C (cf.…”

Section: Resultsmentioning

confidence: 99%

“…201, 1008-1015(2000 ylmethacrylate (Röhm), n-butylmethacrylate (Aldrich), ethyleneglycol dimethacrylate (Fluka), and n-hexanediol dimethacrylate (Aldrich) were distilled in vacuo over calcium hydride prior to use. 3,4,5-tris(alkoxybenzamides) have been synthesized and purified according to the literature 5) . The compounds were freeze dried from benzene before use.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Self-organization of 3,4,5-tris(octyloxy)benzamide in solution and embedding of the aggregates into methacrylate resins

Beginn¹,

Sheiko

Möller

2000

Macromol. Chem. Phys.

View full text Add to dashboard Cite

“…Disk-like complex 58 with dodecyl chains displays a hexagonal columnar phase (D h ) between 88 and 108°C. Columnar mesophases are also exhibited by benzamide dimers [138].…”

Section: Disk-like Complexesmentioning

confidence: 99%

Molecular Self-Assembly Organic Versus Inorganic Approaches

Fuiita¹

2000

Structure and Bonding

View full text Add to dashboard Cite

~ Spri ngerThe series Structure and Bonding publishes critical reviews on topics of research concerned with chemical structure and bonding. The scope of the series spans the entire Periodic Table. It focuses attention on new and developing areas of modern structural and theoretical chemistry such as nanostructures, molecular electronics, designed molecular solids, surfaces, metal clusters and supramolecular structures. Physical and spectroscopic techniques used to determine, examine and model structures fall within the purview of Structure and Bonding to the extent that the focus is on the scientific results obtained and not on specialist information concerning the techniques themselves. Issues associated with the development of bonding models and generalizations that illuminate the reactivity pathways and rates of chemical processes are also relevant.As a rule, contributions are specially commissioned. The editors and publishers will, however, always be pleased to receive suggestions and supplementary information. Papers are accepted for Structure and Bonding in English.In references Structure and Bonding is abbreviated Struct. Bond. and is cited as a journal.Springer www home

show abstract

Liquid Crystalline Primary Benzamides

Abstract: Several alkoxybenzamides are synthesized and characterized by spectroscopic and chromatographic methods. 3,4,S-Tris(alkoxy)benzamides have been found to exhibit a mesophase of a columnar or stacklike type.

Cited by 41 publications

References 15 publications

Supramolecular Columnar Liquid Crystals with Tapered‐Shape Simple Pyrazoles Obtained by Efficient Henry/Michael Reactions

Supramolecular Columnar Liquid Crystals with Tapered‐Shape Simple Pyrazoles Obtained by Efficient Henry/Michael Reactions

Self-organization of 3,4,5-tris(octyloxy)benzamide in solution and embedding of the aggregates into methacrylate resins

Molecular Self-Assembly Organic Versus Inorganic Approaches

Contact Info

Product

Resources

About