Topochemical Polymerization of a Diacetylene in a Chalcogen-Bonded (ChB) Assembly - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Angewandte Chemie International Edition Année : 2022

Topochemical Polymerization of a Diacetylene in a Chalcogen-Bonded (ChB) Assembly

Résumé

The successful topochemical polymerization of bis(selenocyanatomethyl)butadyine 1 is achieved upon association in a 1 : 1 co-crystal with 1,2-bis(2-pyridyl)ethylene (2-bpen) through strong and linear (NC)-Se⋅⋅⋅N(Py) chalcogen bonding (ChB) interactions, allowing for an appropriate parallel alignment of the diacetylene moieties toward the solid-state reaction. Co-crystal 1⋅(2-bpen) undergoes polymerization upon heating at 100 °C. The reaction progress was monitored by IR, DSC and PXRD. An enhancement of the polymer conductivity by 8 orders of magnitude is observed upon iodine doping. Strikingly, the course of polymerization is accompanied with sublimation of the ChB acceptor molecules 2-bpen, providing the polymer in a pure form with full recovery of the co-former, at variance with the usual hydrogen-bonded co-crystal strategies toward polydiacetylenes.
Fichier principal
Vignette du fichier
Accepted manuscript.pdf (1.42 Mo) Télécharger le fichier
Accepted Manuscript_v2.pdf (694.54 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03555294 , version 1 (04-02-2022)

Identifiants

Citer

Arun Dhaka, Ie-Rang Jeon, Olivier Jeannin, Emmanuel Aubert, Enrique Espinosa, et al.. Topochemical Polymerization of a Diacetylene in a Chalcogen-Bonded (ChB) Assembly. Angewandte Chemie International Edition, 2022, pp.e202116650. ⟨10.1002/anie.202116650⟩. ⟨hal-03555294⟩
79 Consultations
102 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More