title: Tuning the size of supramolecular M4L4 tetrahedra by ligand connectivity.
abstract: Triangular triscatechol ligands are prepared in facile reaction sequences. The catechol units are either bound to the triangular backbone through their 3- or 4-position. With titanium(IV) ions, the ligands form metallosupramolecular M(4)L(4) tetrahedra which are characterized by ESI MS and proton NMR. Quantum-chemical calculations reveal that connectivity at the catechol in the 3-position results in highly condensed structures while attachment in the 4-position affords container molecules providing huge internal cavities.
authors: Institut für Organische Chemie, Landoltweg 1, 52074, Aachen, Germany. markus.albrecht@oc.rwth-aachen.de
authors: Markus
authors: M
authors: Albrecht
authors: Yuli
authors: Y
authors: Shang
authors: Kensuke
authors: K
authors: Hasui
authors: Verena
authors: V
authors: Gossen
authors: Gerhard
authors: G
authors: Raabe
authors: Kazukuni
authors: K
authors: Tahara
authors: Yoshito
authors: Y
authors: Tobe