Charge-Segregated Stacking Structure with Anisotropic Electric Conductivity in NIR-Absorbing and Emitting Positively Charged π-Electronic Systems.
Charged π-Electronic Systems
Chiroptical Properties
Electric Conductivity
Ion-Pairing Assemblies
NIR Dyes
Journal
Angewandte Chemie (International ed. in English)
ISSN: 1521-3773
Titre abrégé: Angew Chem Int Ed Engl
Pays: Germany
ID NLM: 0370543
Informations de publication
Date de publication:
13 Feb 2023
13 Feb 2023
Historique:
received:
31
10
2022
pubmed:
28
12
2022
medline:
28
12
2022
entrez:
27
12
2022
Statut:
ppublish
Résumé
Squarylium-based π-electronic cation with an augmented dipole was synthesized by methylation of zwitterionic squarylium. The cation formed various ion pairs in combination with anions, and the ion pairs exhibited distinct photophysical properties in the dispersed state, ascribed to the formation of J- and H-aggregates. The ion pairs provided solid-state assemblies based on cation stacking. It is noteworthy that complete segregation of cations and anions was observed in a pseudo-polymorph of the ion pair with pentacyanocyclopentadienide as a π-electronic anion. In the crystalline state, the ion pairs exhibited photophysical properties and electric conductivity derived from cation stacking. In particular, the charge-segregated ion-pairing assembly induces an electric conductive pathway along the stacking axis. The charge-segregated mode and fascinating properties were derived from the reduced electrostatic repulsion between adjacent π-electronic cations via dipole-dipole interactions.
Identifiants
pubmed: 36573653
doi: 10.1002/anie.202216013
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e202216013Subventions
Organisme : JSPS KAKENHI
ID : JP18H01968
Organisme : JSPS KAKENHI
ID : JP22H02067
Organisme : JSPS KAKENHI
ID : JP20H05863
Organisme : JSPS KAKENHI
ID : JP19K05444
Organisme : JSPS KAKENHI
ID : JP22H00314
Organisme : JSPS KAKENHI
ID : JP20H05867
Organisme : JSPS KAKENHI
ID : JP20H05862
Informations de copyright
© 2022 Wiley-VCH GmbH.
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