Rodrigo González-Prieto

Single layers of a multifunctional laminar Cu(I,II) coordination polymer

A multifunctional bidimensional mixed-valence copper coordination polymer [Cu2Br(IN)2]n (IN = isonicotinato) has been characterized in crystal phase and isolated on graphite surface as single sheets.

MMX polymer chains on surfaces

Fibres of [Ru(2)Br(micro-O(2)CEt)4]n polymer have been isolated on different surfaces under specific conditions, and morphologically characterised by AFM and STM, showing an unexpected helical internal structure.

Time-Dependence Structures of Coordination Network Wires in Solution

We present a mechanochemistry-based procedure to isolate individual chains on surfaces of a ruthenium MMX polymer. After sonication of solutions containing the two building blocks of the mentioned MMX polymer, time-depending structures are formed in the solution. The architecture of the different structures obtained in this process, as a function of the time, is monitored using atomic force microscopy. The resulting structures exhibit uniform subnanometer diameters over microns length, in agreement with the expected diameter for an individual polymer chain. From the atomic force microscope images, we infer a long persistence length for the linear structures. Finally, the effect of the temperature solution in the formation of the different structures is also addressed.

Nanofibers generated by self-assembly on surfaces of bimetallic building blocks

Adsorption on surfaces of diluted CH2Cl2 solutions of [Pt2(dta)4] (dta = dithioacetate) at room temperature does not lead to any organization. However, sonication or low temperature experiments results in the formation of 1D nanofibers on graphite.

Both end-on and end-to-end azide bridged tetranuclear ferromagnetic nickel(II) Schiff base complexes

Variable temperature magnetic measurements of a novel tetranuclear nickel(II) complex, consisting of two pseudo-dinuclear entities bridged by an end-to-end azide, indicate the presence of both intra- and inter-dinuclear ferromagnetic interactions (J1 = 16.48 cm−1 and J2 = 24.17 cm−1, respectively), as also corroborated by DFT calculations (J1 = 12.0 cm−1 and J2 = 29.2 cm−1).

Nanostructures on surfaces of the metalorganic compound {Fe2(CO)6[µ-S2C6H2(OH)2]} and its potential as catalyst precursor for the synthesis of carbon nanotubes

The compound {Fe(2)(CO)(6)[µ-S(2)C(6)H(2)(OH)(2)]} is organized by H-bond interactions on graphite and SiO(2) surfaces as micron-length nanofibres. Thermal degradation of these fibres adsorbed on SiO(2) leads to a very homogeneous surface filled with Fe(2)O(3) nanoparticles (ca. 2.5 nm diameter) suitable to produce few-walled carbon nanotubes laying on a clean surface.

A mixed phenoxo and end-on azide bridged dinuclear copper(II) Schiff base complex: synthesis, structure, magnetic characterization and DFT study

A dinuclear copper(II) complex, [(H2O)Cu(L)(μ1,1-N3)Cu(L)]ClO4 [HL = (2-(2-(ethylamino)ethylimino)methyl)-6-ethoxyphenol] has been synthesized and characterized by spectral and elemental analyses. The structure has been confirmed by single crystal X-ray diffraction. Variable temperature (2–300 K) magnetic susceptibility measurements indicate the presence of antiferromagnetic exchange coupling between the copper(II) centers (J = −46.18 cm−1), as also corroborated by DFT calculations (Jtheo = −45.98 cm−1). The calculated spin densities at the copper(II) centers were +0.56 and −0.61, confirming that they are the magnetic centers. An experimental absorption spectrum of the complex has been compared with a normalized absorption spectrum obtained theoretically. Supramolecular interactions in the solid state of the complex have also been characterized with the help of Hirshfeld analysis and the AIM theory.

CCDC 1010423: Experimental Crystal Structure Determination

Related Article: Patricia Delgado-Martinez, Alejandra Elvira-Bravo, Rodrigo Gonzalez-Prieto, Jose L. Priego, Reyes Jimenez-Aparicio and M. Rosario Torres|2014|Inorganics|2|524|doi:10.3390/inorganics2030524