Influence of the supramolecular order on the electrical properties of 1D coordination polymers based materials

MUSUMECI, Chiara, OSELLA, Silvio, FERLAUTO, Laura, NIEDZIALEK, Dorota, GRISANTI, Luca, BONACCHI, Sara, JOUAITI, Abdelaziz, MILITA, Silvia, CIESIELSKI, Artur, BELJONNE, David, HOSSEINI, Mir Wais et SAMORI, Paolo, sans date. Influence of the supramolecular order on the electrical properties of 1D coordination polymers based materials. Nanoscale. sans date. Vol. 8, n° 4pp. 2386-2394. DOI 10.1039/C5NR07776A. The generation, under self-assembly conditions, of coordination polymers on surface based combinations of a terpyridine–antracene–pyridine based tecton and Co(II) or Pd(II) cations is primarily governed by the coordination geometry of the metal center (octahedral and square planar respectively). While the octahedral Co(II) based polymer self-assembles in insulating films exhibiting randomly oriented crystalline domains, the planarity of Pd(II) based polymers leads to the formation of conductive π–π stacked fibrillar structures exhibiting anisotropically oriented domains. In the latter case, the favorable Pd–Pd and anthracene–anthracene wavefunction overlaps along the fiber direction are responsible for the large electronic couplings between adjacent chains, whereas small electronic couplings are instead found along individual polymer chains. These results provide important guidelines for the design of conductive metal coordination polymers, highlighting the fundamental role of both intra- as well as inter-chain interactions, thus opening up new perspectives towards their application in functional devices.1. .
Accès libre Peer reviewed
Version acceptée pour publication (post-print auteur)
Paternité - Pas d'utilisation commerciale [CC] [BY] [NC]
Auteurs Chiara Musumeci
Silvio Osella
Laura Ferlauto
Dorota Niedzialek
Luca Grisanti
Sara Bonacchi
Abdelaziz Jouaiti
Silvia Milita
Artur Ciesielski
David Beljonne
Mir Wais Hosseini
Paolo Samori
Unité de recherche du site

Institut de Science et d'Ingénierie Supramoléculaires - ISIS - UMR7006
Chimie de la matière complexe - CMC - UMR7140
Langue

en
Volume

8
Numéro

4
Page de début

2386
Page de fin

2394
Date de première publication

2015-12-31
ISSN

2040-3364
2040-3372
Titre de la source (revue, livre…)

Nanoscale
Résumé

The generation, under self-assembly conditions, of coordination polymers on surface based combinations of a terpyridine–antracene–pyridine based tecton and Co(II) or Pd(II) cations is primarily governed by the coordination geometry of the metal
Show moreThe generation, under self-assembly conditions, of coordination polymers on surface based combinations of a terpyridine–antracene–pyridine based tecton and Co(II) or Pd(II) cations is primarily governed by the coordination geometry of the metal center (octahedral and square planar respectively). While the octahedral Co(II) based polymer self-assembles in insulating films exhibiting randomly oriented crystalline domains, the planarity of Pd(II) based polymers leads to the formation of conductive π–π stacked fibrillar structures exhibiting anisotropically oriented domains. In the latter case, the favorable Pd–Pd and anthracene–anthracene wavefunction overlaps along the fiber direction are responsible for the large electronic couplings between adjacent chains, whereas small electronic couplings are instead found along individual polymer chains. These results provide important guidelines for the design of conductive metal coordination polymers, highlighting the fundamental role of both intra- as well as inter-chain interactions, thus opening up new perspectives towards their application in functional devices.
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DOI 10.1039/C5NR07776A
Titre abrégé de la source

Nanoscale
Type de publication

ACL
Domaine

Chimie/Matériaux
Unité de recherche extérieure au site

Laboratory for Chemistry of Novel Materials, University of Mons, Place du Parc 20, B-7000 Mons, Belgium
CNR – Istituto per la Microelettronica e Microsistemi (IMM), via Piero Gobetti 101, I-40129 Bologna, Italy
Fonction

aut
crp
Audience

International