From Coordination Polymer Macrocrystals to Nanometric Individual Chains

Olea, David; Alexandre, Simone S.; Amo‐Ochoa, Pilar; Guijarro, Alejandro; Jesús, Fernando de; Soler, José M.; Pablo, Pedro; Zamora, Félix; Gómez-Herrero, Júlio

doi:10.1002/adma.200401687

Cited by 73 publications

(68 citation statements)

References 39 publications

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“…Then, the energy provided by sonication is enough to disrupt the intermolecular interactions, leading to chain isolation after centrifugation and to drop-casting deposition on mica. [ 15 ] Dissolution of the chains usually requires some chemical modifi cation such as acid-base reactions to produce electrical repulsive interactions ( ie. protonation/deprotonation leads to polycation/polyanion formation of the corresponding CP).…”

Section: Research Newsmentioning

confidence: 99%

Coordination Polymers for Nanoelectronics

Gómez-Herrero

Zamora

2011

Advanced Materials

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We review recent progress in the potential use of coordination polymers as molecular wires for nanoelectronics. To this end we review some basic aspects of these materials including synthesis and properties in the bulk scale; processability towards the formation of nanoscale structures and seminal works on electrical transport of coordination polymers. Finally, we summarize some of the perspectives in this field.

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Section: Research Newsmentioning

confidence: 99%

Coordination Polymers for Nanoelectronics

Gómez-Herrero

Zamora

2011

Advanced Materials

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“…[7][8][9][10][11] Recently, we have been able to adsorb nanometer-scale single molecules and thick bundles of coordination polymers on surfaces, showing their potential as molecular wires. [12][13][14][15] Direct sublimation from crystals of coordination polymers and MMX has demonstrated to be a suitable procedure to form nanostructures on surfaces. [16,17] In particular we have been able to isolate nanoribbons of [Pt 2 (dta) 4 I] (dta ¼ dithioacetate) on mica and to prove their excellent electrical conductive properties.…”

Section: Introductionmentioning

confidence: 99%

Conductive Nanostructures of MMX Chains

Guijarro

Castillo

Welte

et al. 2010

Adv Funct Materials

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Crystals of [Pt2(n‐pentylCS2)4I] show a transition from semiconductor to metallic with the increase of the temperature (conductivity is 0.3–1.4 S · cm−1 at room temperature) and a second metallic–metallic transition at 330 K, inferred by electrical conductivity measurements. X‐ray diffraction studies carried out at different temperatures (100, 298, and 350 K) confirm the presence of three different phases. The valence‐ordering of these phases is analyzed using structural, magnetic, and electrical data. Density functional theory calculations allow a further analysis of the band structure derived for each phase. Nanostructures adsorbed on an insulating surface show electrical conductivity. These results suggest that MMX‐polymer‐based nanowires could be suitable for device applications.

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“…Recently, attempts have been made with limited success to assemble nanochains and nanotubes on different surfaces. [27][28][29][30] Although electrospinning has been routinely used to make fibers of organic [31] and inorganicpolymer composites, [32,33] pure CPs do not appear to yield good-quality fibers in a large quantity for practical applications. [34,35] It appears that CP gels are the key precursors for making pure CP fibers.…”

Section: Introductionmentioning

confidence: 99%

Coordination‐Polymeric Nanofibers and their Field‐Emission Properties

Batabyal

Peedikakkal

Ramakrishna

et al. 2009

Macromol. Rapid Commun.

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The large-scale fabrication of nanofibers of coordination polymers (CPs) is reported for the first time from CP gel precursors by the electrospinning method. In the absence of organic polymeric additives, viscous solutions suitable for drawing fibers have been made by diluting the gel precursors, which are obtained by mixing Ni(OAc)(2) and 4-trifluoromethylbenzoic acid with 4,4'-bis(pyridyl)ethylene (bpe) or 4,4'-bipyridine (bpy) linear spacer ligands in organic solvents. One-dimensional polymeric structures have been proposed for these gels and nanofibers based on the crystal structures of the compounds isolated. These fibers show some interesting field-emission properties. The results described here may well be extended to other one-dimensional polymers, thus opening the door for processing of the coordination polymers.

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From Coordination Polymer Macrocrystals to Nanometric Individual Chains

Cited by 73 publications

References 39 publications

Coordination Polymers for Nanoelectronics

Coordination Polymers for Nanoelectronics

Conductive Nanostructures of MMX Chains

Coordination‐Polymeric Nanofibers and their Field‐Emission Properties

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