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Towards Molecular Wires Based on Metal‐Organic Frameworks
Author(s) -
MasBallesté Rubén,
Castillo Oscar,
Sanz Miguel Pablo J.,
Olea David,
GómezHerrero Julio,
Zamora Félix
Publication year - 2009
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200801090
Subject(s) - molecular wire , nanotechnology , chemistry , polymer , characterization (materials science) , molecule , metal organic framework , nanoscopic scale , conductive polymer , adsorption , materials science , organic chemistry
The formation of one‐dimensional structures on nanoscale is one of the main goals of modern nanotechnology. The aim of these efforts is to find conductive long molecules that could serve as molecular wires in nanocircuits. In recent years, electrical conductivity in several organic and metal‐organic systems has been studied to this end. In principle, DNA is one of the most attractive molecules for molecular wire owing to its well‐known self‐assembly chemistry and controllable structural diversity. However, the ability of DNA to conduct electricity is still controversial. In principle, binding of metal ions to organic molecules seems to be a suitable method for improving conductivity. Therefore, some studies were carried out with the so‐called M‐DNA as an alternative to increase conductivity on DNA. We have selected the 1D‐coordination polymer [Cd(6‐MP – ) 2 ] n (6‐MP – = 6‐mercaptopurinate) as a feasible structural model that is suitable for providing basic information about the electrical properties of M‐DNA.Work with this coordination polymer revealed several aspects concerning the systematic search for new adsorption methods for coordination polymers on surfaces, their morphological and physical characterization, and opened a new playground for the study of coordination polymers as potential molecular wires. In this microreview, we focus on the description of several methods dealing with the isolation of single chains from crystals of these supramolecules, and different pathways to obtain molecular assemblies are also described. Methodologies and characterization techniques are illustrated with the results obtained with different coordination polymers.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)