18  Macrocyclic and supramolecular coordination chemistry

Synthesis, Structural Characterization and Metal Inclusion Properties of 18‐, 20‐ and 22‐Membered Oxaazacyclophanes and Oxaazacalix[4]arene Analogues: Macrocyclic Amine and Schiff Base Receptors with Variable NxOy Donor Sets

“…[18][19][20] From the synthetic point of view, these compounds can be obtained by a variety of methods, which typically involve either the high-dilution principle or the template effect, in order to increase the yield of the cyclization step. [21][22] In the metal template synthesis approach, however, stable metal-complexed macrocycles can be generated, and removal of the metal can be a problem in this case.…”

New discrete metallocycles incorporating palladium(ii) and platinum(ii) corners and dipyridyldibenzotetraaza[14]annulene side units

“…The metal-ion directed assembly of discrete molecular architectures, and especially those with interesting supramolecular topologies, has received increasing attention over the past two decades. [1][2][3][4][5][6][7][8][9][10][11] The resulting metallo structures range from simple molecular ellipses, through higher polygons, to large polyhedrons with molecular weights of many thousands. 12- 14 For example, the first molecular squares incorporating metal ion-containing corner units and rigid or semi-rigid organic sides, were reported in 1990 15, 16 with an extensive range of related metallo-squares having subsequently been reported.…”

Functional Nanohybrids Constructed via Complexation of Multiwalled Carbon Nanotubes with Novel Hexameric Metallomacrocyles

“…In general, the majority of metallocycles that have been created so far are based on structures possessing heteroorganic sides with metal corners; this mode of construction has been elegantly exploited by Stang ,, and Atwood, and has been the topic of numerous reviews. − Recently, a different series of metallomacrocycles has been reported based on bis(terpyridinyl)aryl monomers possessing a critical, preset coordination angle of 120° with respect to the two metal-ligating moieties. This facilitates the assembly of six building blocks with six connecting metals in the ubiquitous benzenoid architecture. − …”