6533b7d7fe1ef96bd126911f
RESEARCH PRODUCT
Surprising solvent-induced structural rearrangements in large [N⋯I+⋯N] halogen-bonded supramolecular capsules
Kevin PagelKevin PagelKari RissanenLotta TurunenChristoph A. SchalleyChristoph A. SchalleyUlrike WarzokWaldemar HoffmannWaldemar HoffmannMateusz Marianskisubject
inorganic chemicalsSupramolecular chemistryspectrometry studyRandom hexamer010402 general chemistry01 natural scienceshalogen-bonded supramolecular capsuleschemistry.chemical_compoundPyridinesupramolekulaarinen kemiaion mobility-massReactivity (chemistry)ta116chemistry.chemical_classification010405 organic chemistryChemistryGeneral Chemistry5400104 chemical sciencesSolventBipyramidCrystallographyspektrometriaHalogenchemical scienceCounterion500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaftendescription
Coordinative halogen bonds have recently gained interest for the assembly of supramolecular capsules. Ion mobility-mass spectrometry and theoretical calculations now reveal the well-defined gas-phase structures of dimeric and hexameric [N...I+...N] halogen-bonded capsules with counterions located inside their cavities as guests. The solution reactivity of the large hexameric capsule shows the intriguing solvent-dependent equilibrium between the hexamer and an unprecedented pentameric [N...I+...N] halogen-bonded capsule, when the solvent is changed from chloroform to dichloromethane. The intrinsic flexibility of the cavitands enables this novel structure to adopt a pseudo-trigonal bipyramidal geometry with nine [N...I+...N] bonds along the edges and two pyridine binding sites uncomplexed
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-09-05 |