Showing papers on "Coordination polymer published in 1987"
TL;DR: The EPR spectra of these complexes apparently show that the Cu2+ and Co2+ ions are bound at the carbonyl and phenolate oxygen in the 1,4-dihydroxyanthraquinone moiety and the amino nitrogen in the sugar part does not seem to participate in the coordination to the metal ions.
25 citations
TL;DR: In this article, the tetragonal coordination polymer [Rh(diisocyanobiphenyl) 2 + Cl − ] n was used as a heterogeneous catalyst in a model reaction involving the hydrogenation and isomerization of 1-hexene under mild conditions.
23 citations
TL;DR: In this paper, it was shown that the conduction mechanism of iodine-doped poly(phenylethynylcopper) can be understood in the framework of the theory that describes electrical conduction in quasi-one-dimensional mixed-valence stacked complexes.
7 citations
TL;DR: In this article, K-band electron spin resonance investigations on undoped and I-doped phenylethynylcopper coordination polymers (the latter being an organometallic conductor) are reported in the temperature range 4.2-300 K.
1 citations
01 Jan 1987
TL;DR: In this paper, metal ions are used to stabilize polymeric backbones with high electrical conductivity, such as carbon-sulfur polymers (CS2), which can be used as starting materials for a future technical application.
Abstract: Organic polymers with “metallic” properties have found widespread interest during the last few years /1,2/. Acetylene and aniline as well as different nitrogen and sulfur heterocycles have been used as starting materials. One main problem hampering the technical application of these solids up to now is their environmental and thermal instability. Therefore, we introduced metal ions to stabilize polymeric backbones with high electrical conductivity. Because of the enormous coordination ability of sulfur to many transition metal ions we decided to use a polymeric carbon-sulfur backbone. In view of a future technical application one has to start from less expensive and readily available chemicals like CS2 e.g., in order to obtain a carbon-sulfur polymer. Since CS2 cannot be readily polymerized to highly conducting solids a different approach has to be found. As reported earlier /3,4,5/ CS2 can be reacted to thiapendione which can be converted into ethylenetetrathiolate (TT) by cleavage with stronq chemical bases. Additionally thiapendione can be “dimerized” to bis(1,3-dithiole-2-one)tetra-thiafulvalene which can be converted into tetrathiolatotetra-thiafulvalene (TTF-TT) again by a cleavage reaction with strong bases. Both tetrathiolates react with transition metal ions like nickel(II) or copper(II) to coordination polymers which are remarkably inert chemically as well as thermally /6/. The reactions and their final products are schematically summarized in figure 1.
1 citations
01 Jan 1987
TL;DR: In this article, the potential for using such materials as polymeric organic semiconductors or as surface-bound electrocatalysts is considered, and factors influencing charge separation at a semiconductor:electrolyte interface and on metal coordination polymers are delineated.
Abstract: Electrochemical features of model complexes for a new class of nickel:tetrakis (dialkylphosphino) benzene coordination polymers are described. The potential for using such materials as polymeric organic semiconductors or as surface-bound electrocatalysts is considered. Factors influencing charge separation at a semiconductor:electrolyte interface and on metal coordination polymers are delineated.