A Molecular Plug-Socket Connector

Autor: Guillaume Rogez, Maria Teresa Gandolfi, J. Fraser Stoddart, Belén Ferrer Ribera, Alberto Credi, Roberto Ballardini, Yi Liu, Vincenzo Balzani, Brian H. Northrop
Přispěvatelé: G. Rogez, B. Ferrer Ribeira, A. Credi, R. Ballardini, M.T .Gandolfi, V. Balzani, Y. Liu, J.F. Stoddart
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname
DOI: 10.1021/ja067739e
Popis: A monocationic plug-socket connector that is composed, at the molecular level, of three components, (1) a secondary dialkylammonium center (CH(2)NH(2)(+)CH(2)), which can play the role of a plug toward dibenzo[24]crown-8 (DB24C8), (2) a rigid and conducting biphenyl spacer, and (3) 1,4-benzo-1,5-naphtho[36]crown-10 (BN36C10), capable of playing the role of a socket toward a 4,4'-bipyridinium dicationic plug, was synthesized and displays the ability to act as a plug-socket connector. The fluorescent signal changes associated with the 1,5-dioxynaphthalene unit of its BN36C10 portion were monitored to investigate the association of this plug-socket connector with the complementary socket and plug compounds. The results indicate that (1) the CH(2)NH(2)(+)CH(2) part of the molecular connector can thread DB24C8 in a trivial manner and (2) the BN36C10 ring of the connector can be threaded by a 1,1'-dioctyl-4,4'-bipyridinium ion only after the CH(2)NH(2)(+)CH(2) site is occupied by a DB24C8 ring. The two connections of the three-component assembly are shown to be controlled reversibly by acid/base and red/ox external inputs, respectively. The results obtained represent a key step for the design and construction of a self-assembling supramolecular system in which the molecular electron source can be connected to the molecular electron drain by a molecular elongation cable.
Databáze: OpenAIRE