Metric engineering of supramolecular Borromean rings

Abstract

Scheme 1 Formation of the three component supramolecular complexes 7-10 through synergic K + cryptation by K.2.2.2. and I 2 … I-C XB. COMMUNICATIONwww.rsc.org/chemcomm | ChemComm

Isostructural Materials Achieved by Using Structurally Equivalent Donors and Acceptors in Halogen‐Bonded Cocrystals

“…[23] In particular, we have obtained seven isostructural cocrystals through different pairing of six different halogen-bonding components: tfib, tfbb, tmo, tox, piperazine, and morpholine. To the best of our knowledge, isostructurality encompassing such a large number of compounds and solids has not yet been observed in molecular solids, [31][32][33] with the obvious exception of lattice host inclusion compounds. [19,22,24] However, in lattice host inclusion …”

Halogen Bonding in Supramolecular Chemistry

“…The halogen‐bonded 2D and 3D networks described above frequently contain large cavities, as is the case for similarly sized networks assembled through hydrogen bonding or other interactions 51. The empty space present in the overall crystal packing is filled by solvent molecules or through interpenetration 46b. 49b The formation of porous networks through halogen‐bonding interactions is expected to become a field of great interest.…”

Perfluorocarbon-hydrocarbons self-assembly: halogen bonding mediated intermolecular recognition

“…For instance, (E)-1,2-diiododifluoroethylene [33], perfluoro-1,4-diiodobutane, -1,6-diiodohexane, -1,8-diiodooctane (1b, 1c, and 1d, respectively) [24,25,[34][35][36], 1,2-and 1,4-diiodotetrafluorobenzene [37][38][39][40][41][42][43][44][45] as well as 1,2-, 1,3-, and 1,4-dibromotetrafluorobenzene [46] are acid modules that nicely follow this behaviour. The same holds for other compounds where a hydrocarbon spacer separates two 4-iodotetrafluorophenyl moieties [47].…”