Patterned conductive nanostructures from reversible self-assembly of 1D coordination polymer

Abstract

In this study, the outstanding ability of the coordination polymer [Pt 2 (nBuCS 2 ) 4 I] n (nBu ¼ n-butyl) (1) to reversibly self-organize from solution was demonstrated. This feature allowed us to generate highly electrical conductive structures located upon demand on technologically relevant surfaces, by easy-tohandle and low cost micromolding in capillaries (MIMIC) and lithographically controlled wetting (LCW). Electrical characterization reveals a near Ohmic behaviour and a high stability of the stripes (in air). Electrodes produced by the MIMIC technique from a solution of compound 1 demonstrated that this material can be efficiently used as electrodes for organic field-effect transistors (OFETs).

High Resolution Scanning Tunneling Microscopy of a 1D Coordination Polymer with Imidazole‐Based N,N,O Ligands on HOPG

“…We assume a self‐assembly of the monomeric [Zn(bmima)Cl] complexes to form the 1D coordination polymers [Zn(bmima)Cl] n on the surface. A similar assembly–disassembly process was recently reported for [Pt 2 (RCS 2 ) 4 I] n by Zamora and co‐workers 2b. c Figure 3 b represents a large‐scale STM topography of an agglomerate of polymer 8 observed on a HOPG surface.…”

Electrochemically Generated Nanoparticles of Halogen‐Bridged Mixed‐Valence Binuclear Metal Complex Chains

“…However, the major amount of Pt 2+ is assigned to photoreduction of Pt 3+ as an effect of X‐ray radiation, which has previously been observed in closely related (MMI) n samples both in bulk and on surfaces 15. 19 Test samples of the MMI 2 precursor were also analyzed by XPS and showed 35 % of Pt 2+ from photoreduction (Figure S2 in the Supporting Information). Thus, under the experimental conditions, approximately 35 % of the Pt 3+ centers with an environment of I‐Pt‐S 4 spontaneously evolve to Pt 2+ .…”

“…Zamora et al. showed the outstanding electrical properties of deposited MMX nanoribbons17, 18 and submicron crystals19, 20 of [Pt 2 (RCS 2 ) 4 I] n (R=methyl or n ‐pentyl) on mica or SiO 2 . The conductive nanoribbons were formed on mica by direct sublimation from crystals of [Pt 2 (MeCS 2 ) 4 I] n under a high vacuum,21 whereas nanocrystals were obtained from MMX solutions, with a size limitation in the hundreds of nanometers.…”

Electrical Behaviour of Heterobimetallic [MM′(EtCS2)4] (MM′=NiPd, NiPt, PdPt) and MM′X‐Chain Polymers [PtM(EtCS2)4I] (M=Ni, Pd)

“…These needles were collected by suction filtration and washed with cold toluene and nhexane. Yield (0.170 g, 67 %); elemental analysis (%) calcd for C 12 (5): In a similar way to that described for compound 4, compound 3 (0.030 g, 0.044 mmol) was treated with iodine (0.005 g, 0.022 mmol). The solution was filtered and allowed to cool slowly.…”

“…[11] This breakthrough opens up the application of these structural types in the field of molecular wires, as a step forward compared to most common organic conductors. More recently, another [Pt 2 -A C H T U N G T R E N N U N G (RCS 2 ) 4 I] n (R = n-butyl) derivative has been used in the construction of an organic field-effect transistor (OFET) molecular device, [12] whilst the related [Ru 2 A C H T U N G T R E N N U N G (RCO 2 ) 4 X] (R = 3,4,5tridodecyloxybenzoate, X = Cl or I) materials, which have dielectrophoretic capabilities in a given electrical field, [13] constitute prime examples of the renaissance of 1D metal À metal chains in the field of nanomaterial coordination chemistry. In fact, a boost in the field of nanotechnology will also favour the synthesis and characterisation of forthcoming low-dimensional materials, which are constructed by the combination of ligands and metal entities, so-called "coordination polymers", [14] whilst computational modelling tools might give an insight into the intimate aspects that govern the interactions between neighbouring complexes.…”