title: Dipyrrin-Bis(N-Confused Porphyrin) Conjugate: Synthesis, Synergetic Ligation and Chirality Sensing.
abstract: A fully conjugated system 4 consisting of two 2-aza-21-carbaporphyrin (NCP) subunits bridged by dipyrrin was synthesized by a highly selective condensation of 3-pyrrole-NCP 2 with aryl aldehydes. The free base 4 as well as its silver(III) complex 5 exhibited flexibility of the bridge allowing synergetic binding of AgI, thus leading to a mixed-valence tetraporphyrinic assembly consisting of eight silver atoms which was characterized both in the solid state and in solution. Binding of chiral acid by 4 and 5 was shown by observation of an induced optical activity of the adducts.
authors.affiliation: Department of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50383, Wrocław, Poland.
authors.forename: Jacek
authors.initials: J
authors.lastname: Wojaczyński
authors.affiliation: Department of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50383, Wrocław, Poland.
authors.forename: Justyna
authors.initials: J
authors.lastname: Maciołek
authors.affiliation: Department of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50383, Wrocław, Poland.
authors.forename: Piotr J
authors.initials: PJ
authors.lastname: Chmielewski
keywords: dimerization; dipyrrin; porphyrinoids; self-assembly; silver complexes