title: [N⋅⋅⋅I+⋅⋅⋅N] Halogen-Bonded Dimeric Capsules from Tetrakis(3-pyridyl)ethylene Cavitands.
abstract: Two [N⋅⋅⋅I+⋅⋅⋅N] halogen-bonded dimeric capsules using tetrakis(3-pyridyl)ethylene cavitands with different lower rim alkyl chains are synthesized and analyzed in solution and the gas phase. These first examples of symmetrical dimeric capsules making use of the iodonium ion (I+) as the main connecting module are characterized by1H NMR spectroscopy, diffusion ordered NMR spectroscopy (DOSY), electrospray ionization mass spectrometry (ESI-MS), and ion mobility-mass spectrometry (TW-IMS) experiments. The synthesis and effective halogen-bonded dimerization proceeds through analogous dimeric capsules with [N⋅⋅⋅Ag+⋅⋅⋅N] binding motifs as the intermediates as evidenced by the X-ray structures of (CH2Cl2)2@[3 a2⋅Ag4⋅(H2O)2⋅OTs4] and (CH2Cl2)2@[3 a2⋅Ag4⋅(H2O)4⋅OTs4], two structurally different capsules.
authors.affiliation: Department of Chemistry, NanoScience Center, University of Jyvaskyla, P.O. Box 35, FI-, 40014, Jyvaskyla, Finland.
authors.forename: Lotta
authors.identifier: 0000-0002-5654-7449
authors.initials: L
authors.lastname: Turunen
authors.affiliation: Institut für Chemie und Biochemie der, Freien Universität Berlin, Takustrasse 3, 14195, Berlin, Germany.
authors.forename: Ulrike
authors.initials: U
authors.lastname: Warzok
authors.affiliation: Department of Chemistry, NanoScience Center, University of Jyvaskyla, P.O. Box 35, FI-, 40014, Jyvaskyla, Finland.
authors.forename: Rakesh
authors.initials: R
authors.lastname: Puttreddy
authors.affiliation: Aalto University, School of Science, Department of Applied Physics, Puumiehenkuja 2, FI-, 02150, Espoo, Finland.
authors.forename: Ngong Kodiah
authors.initials: NK
authors.lastname: Beyeh
authors.affiliation: Institut für Chemie und Biochemie der, Freien Universität Berlin, Takustrasse 3, 14195, Berlin, Germany.
authors.forename: Christoph A
authors.initials: CA
authors.lastname: Schalley
authors.affiliation: Department of Chemistry, NanoScience Center, University of Jyvaskyla, P.O. Box 35, FI-, 40014, Jyvaskyla, Finland. kari.t.rissanen@jyu.fi.
authors.forename: Kari
authors.identifier: 0000-0002-7282-8419
authors.initials: K
authors.lastname: Rissanen
keywords: cavitands; dimeric capsules; halogen bonds; halonium ions; mass spectrometry