New talent: Americas
Welcome to this New talent issue of CrystEngComm featuring a collection of papers that highlight young and talented scientists from the Americas.
Structural bolstering of metal sites as nodes in metal–organic frameworks
We show that a metal site attains orders of magnitude higher resistance (compared to its molecular form) towards external ligand-induced disruption of its coordination environment upon incorporation as the building block of a crystalline metal–organic framework (MOF).
Hydrogen bonded chiral sheet self-assembled from a C3-symmetric tricarbamate
A crystalline chiral sheet spontaneously assembled under mild conditions from benzene-1,3,5-triyl tris(propylcarbamate), which is a C3-symmetric supramolecular atropisomer. The lamellar-like structure was directly observed by TEM, and confirmed by powder and single crystal X-ray diffraction analysis.
Stepwise pillar insertion into metal–organic frameworks: a sequential self-assembly approach
Stepwise linker insertion within pillared paddlewheel frameworks.
Exploring the use of anionic homoleptic complexes as templates in the design of photoreactive multi-component supramolecular assemblies
A novel supramolecular approach based on the use of different homoleptic complexes as templates is explored in order to drive regioselective [2+2] cycloaddition in the solid state.
alcohol: controlling the macroscopic organization of small molecules through the self-assembly of their receptors
A family of macrocycles displays and organizes small alcohol substrates in a manner predicted by the rings' intrinsic self-assembly properties.
halogen- and hydrogen-bonding in stoichiometric variations of a cocrystal of a phosphine oxide
Stoichiometric ratio of methyldiphenylphosphine oxide and p-diiodotetrafluorobenzene determines whether the resulting cocrystal will display hydrogen or halogen bonds.
Self-assembly of benzyl cyclopentadienyl lithium
The base-free polymeric superstructure of benzyl cyclopentadienyl lithium having the shortest Cp–Li bond distance of mono-substituted CpLi compounds is reported.
Porous metal–organic framework based on a macrocyclic tetracarboxylate
ligand exhibiting selective CO2 uptake
A two-fold interpenetrating microporous metal–organic framework, MMCF-1 has been constructed from a custom-designed macrocyclic ligand and it exhibits interesting selective uptake of CO2 over N2.
Controlling the local arrangements of π-stacked polycyclic aromatic
hydrocarbons through substituent effects
We show that the orientational behaviour of coronene and hexa-peri-hexabenzocoronene can be controlled via the through-space effects of simple substituents.
Critical role of weak [C–H⋯O] hydrogen bonds in the assembly of
benzo[1,2-d:4,5-d′]bisoxazole cruciforms into supramolecular sheets
A comparison of crystal structures of eight benzobisoxazole-based cruciform fluorophores reveals three distinct supramolecular organizational motives, brought about by the differences in terminal substitution.
Supramolecular networks in organic–inorganic hybrid materials from perchlorometalate(II) salts and 2,4,5-tri(4-pyridyl)imidazole
Crystal structure analysis of three crystalline organic–inorganic hybrid compounds prepared from a tripyridinium imidazolecation (L) and perhalometallate anions, reveals that L is a suitable ionic tecton for higher-dimensional networks.
Examining the robustness of a theophylline cocrystal during
grinding with additives
The robustness of theophylline-p-hydroxybenzoic acid (TP·pHBA) while grinding with additives is evaluated through solvent-drop grinding experiments with coformers containing various functional groups.
About this collection
This CrystEngComm Collection brings together a series of papers showcasing the excellent research being carried out in the Americas by younger members of the academic community.