Comparative study on structural, magnetic and spectroscopic properties of four new copper(II) coordination polymers with 4′-substituted terpyridine ligands was written by Toledo, Dominique;Vega, Andres;Pizarro, Nancy;Baggio, Ricardo;Pena, Octavio;Roisnel, Thierry;Pivan, Jean-Yves;Moreno, Yanko. And the article was included in Journal of Solid State Chemistry in 2017.Electric Literature of C10H2CuF12O4 This article mentions the following:
The synthesis and characterization of four Cu(II) complexes with different terpyridyl ligands were carried out, their crystal and mol. structures determined and their magnetic and luminescent properties analyzed. The ligands used in the coordination reactions were 4′-(3-methyl-2-thienyl)-4,2′:6′,4”-terpyridine (4-stpy), -4′-(4-quinolinyl)-4,2′:6′,4”-terpyridine (4-qtpy), 4′-(4-quinolinyl)-3,2′:6′,3”-terpyridine (3-qtpy, unreported so far) and 4′-(4-cyanophenyl)-4,2′:6′,4”-terpyridine (4-cntpy); the reaction of these ligands with Cu(II)-hexafluoroacetylacetone (Cu(hfacac)2) gives rise to coordination polymers Cu(4-stpy)(hfacac)2 (1), Cu(4-qtpy)(hfacac)2 (2), Cu(3-qtpy)(hfacac)2 (3) and Cu(4-cntpy)(hfacac)2 (4). The different location of the N atom of the outer ring is responsible for the different coordination modes. The emission spectra of CH2Cl2 solutions are consistent with dissociation of the complexes; the emission maxima simulate those of the free ligands. The emission of 1, 3 and 4 in the solid state is essentially quenched upon complexation with Cu(II), whereas for compound 2 an emission at 420 nm is observed The interaction between Cu centers was related with the coplanarity of terpyridine rings. Complexes 1–3 exhibit a paramagnetic behavior, while compound 4, with the smallest torsion angle between pyridine moieties, shows an antiferromagnetic behavior described by a dimeric model, with J = -4.38 cm-1, g = 2.06 and ρ=0.07. In the experiment, the researchers used many compounds, for example, copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4Electric Literature of C10H2CuF12O4).
copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4) belongs to copper catalysts. The applications of Copper-based nanoparticles have received great attention due to low toxicity and inexpensive, earth-abundant. Copper nanoparticles can also catalyze the coupling reaction of phenols, thiols, xanthogenates, nitrogen-containing nucleophiles, selenium ruthenium nucleophiles and the like.Electric Literature of C10H2CuF12O4
Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”