The impact of the amide connectivity on the assembly and dynamics of benzene-1,3,5-tricarboxamides in the solid state

Self‐Assembly of 9,10‐Bis(phenylethynyl) Anthracene (BPEA) Derivatives: Influence of π–π and Hydrogen‐Bonding Interactions on Aggregate Morphology and Self‐Assembly Mechanism

“…This could explain the fact that longer aggregates of 2 (length >200 nm) were not observed experimentally using various DLS and AFM techniques. The fact that the nitrogen is directly bound to the extended π core instead of the carbonyl group increases the co‐planarity of the amide and the core, which hampers the formation of linear hydrogen bonds and increases intra‐columnar disorder . Even though cooperative π–π and hydrogen‐bonding interactions occur in the aggregate structure, the proposed alternated arrangement of hydrogen bonds might help rationalize the relatively moderate‐to‐low degree of cooperativity observed experimentally by UV/Vis and fluorescence spectroscopy.…”

Columnar self-assembly of N,N′,N′′-trihexylbenzene-1,3,5-tricarboxamides investigated by means of NMR spectroscopy and computational methods in solution and the solid state

“…[20][21][22][23] NMR methods based on dipolar interactions and double-quantum approaches have been utilized to characterize structure and dynamics of these systems in the solid state. [24] In spite of all these efforts, and as for most other self-organizing systems, the prediction of the efficiency of the self-assembly Columnar self-assembly of N,N',N''-trihexylbenzene-1,3,5-tricarboxamides investigated by means of NMR spectroscopy and computational methods in solution and solid state 4 processes related to BTA building blocks is still largely based on empirical data and, hence, remains a challenge. [25] NMR spectroscopy is an invaluable tool to probe structure and dynamics on the atomic scale for ordered or disordered systems, both in solution or in solid state.…”

A Toolbox of Solid-State NMR Experiments for the Characterization of Soft Organic Nanomaterials

“…However, whether the polymers synthesized using either of these methods have comparable chemical and physical properties to those made from petrochemical sources is a concern. From a structural point-of-view, the points of interest are (i) how the polymer material crystallizes to form nano-structured domains [133], utilizing non-covalent interactions such as hydrogen-bonding and π -π-stacking [134][135][136], (ii) crystallinity and chain conformations [137], and (iii) whether the bio-based groups are conformationally stable when incorporated into a polymeric structure. These important structural properties can influence the melting point and lead to potentially stiffer or more flexible materials.…”