1.1. History and Background Knots and links are all around us (Figure 1). Be they functional
or decorative, we encounter them constantly, when, for example, tying simple bow knots in …

Many current investigations are focused on the design of new molecule-based functional
materials. A great variety of extended architectures with promising properties has been …

Two isostructural microporous zwitterionic metal–organic frameworks (ZW MOFs),{[M
(bdcbpy)(OH2) 4]· 4H2O} n with M= Mn (1) and Ni (2), were synthesized by the rational …

Linking, or multicomponent topological entanglement, is ubiquitous in soft matter systems,
from mixtures of polymers and DNA filaments packed in vivo to interlocked line defects in …

The dynamic solution equilibria between molecular Borromean rings (BRs) and Solomon
knots (SKs), assembled from transition metal‐templated macrocycles, consisting of exo …

The neutral flexible viologen based ligand 1, 1′-bis (4-carboxybenzyl)-4, 4′-bipyridinium
dibromide (H2LBr2) and its self-assembly with first-row transition metals in an aqueous …

A library of supramolecular anionic networks showing Borromean interpenetration has been
prepared by self-assembly of crypt-222, several metal or ammonium halides, and five bis …

Six novel metal–organic frameworks (MOFs),{Mn (bpydb)(bpyHdbH)} n (1){[Co2 (bpydb)
2](H2O) 0.5} n (2),{[Ni0. 5 (bpydbH)(H2O)](DMF) 2} n (3),{[Cu2 (bpydb) 2](H2O) 0.5} n (4),{Zn …

The self‐assembly of three donor–acceptor ring‐in‐ring complexes, prepared from the π‐
electron‐deficient tetracationic cyclophane, cyclobis (paraquat‐4, 4′‐biphenylene), and …

A 3-fold (2D→ 2D)(6, 3) Borromean weave coordination polymer sustained by urea− sulfate
hydrogen bonding is formed when N, N′-bis (3-pyridyl)-p-phenylenebisurea (L1) is reacted …