A mechanically interlocked squaraine rotaxane is comprised of a deep-red fluorescent squaraine dye inside a tetralactam macrocycle. NMR studies show that Cl(-) binding to the rotaxane induces macrocycle translocation away from the central squaraine station, a process that is completely reversed when the Cl(-) is removed from the solution. Steady-state fluorescence and excited-state lifetime mea...

A scandium hydride supported by a (NNNN)-type macrocycle consists of a trinuclear cation and a trinuclear anion. The anion shows significantly higher reactivity.

A small macrocycle comprising ether-bridged naphthyl units was prepared in a two-step synthesis. Single-crystal X-ray diffraction of two polymorphs are reported, one which showed multiple C−H⋅⋅⋅πnaphthyl interactions solvent molecule the cavity macrocycle. Chemical reduction led to C−O bond cleavages accompanied by Z/E isomerization. The resulting twofold negatively charged (E)-1,2-bis(2-naphth...

Double aza-Michael addition of n-butylamine to the two acrylamide groups of acyclic N(2),N(6)-bis(6-acrylamidopyridin-2-yl)pyridine-2,6-dicarboxamide gives the corresponding macrocycle, H₄L. H₄L has potential coordination pockets associated with the 2,6-dicarboxamide (head) and the butylamine (tail) regions of the macrocycle. Depending on the conditions employed, macrocyclic complexes with pall...

Macrocycles are usually barely porous in the solid-state because of their small intrinsic cavity sizes and tendency to close-pack. Here, a heterochiral pairing strategy introduce porosity trianglimine macrocycle co-crystal.

Heterogenized metalloporphyrin catalysts for oxidation reactions are extensively explored to improve chemical production. In this work, manganese meso-tetraarylporphyrins were immobilized on hydrated mesoporous titanium dioxide (SBET = 705 m2 g−1) through carboxylate or phosphonate anchoring groups separated from the macrocycle by 2-arylimidazole linker fused across one of pyrrolic rings macroc...

Tetrapyrazinoporphyrazine with peripheral menthol-thiophenyl substituents was synthesized using Linstead conditions and purified by flash column chromatography. The optimized synthetic purification procedures allowed us to obtain a new macrocycle 36% yield. derivative characterized UV–Vis NMR spectroscopy, as well MS spectrometry. Complex studies 1D 2D techniques the analysis of bulky substitut...