Synthesis, crystal structure and properties of the cyano-bridged heteropolynuclear [Cu(meso)]3[Co(CN)6]2•9.5H2O compound

Synthesis and characterization of new heterometallic cyanido complexes based on [Co(CN)6]3− building blocks: crystal structure of [Cu2(N-bishydeten)2Co(CN)6]·3H2O having a strong antiferromagnetic exchange

“…The Cu2 atom is six-coordinated with tetradentate (N4, N5, O3 and O4) N-bishydeten, one N-atom from the bridging cyanido form [Co(CN) 6 ] 3À and Z 1 -O2. The geometry around Cu2 is a distorted (elongated) octahedral with short bonds at the equatorial 2,5,6,10,12,14,17,18 The adjacent Co3-Cu1, Cu1-Cu2 and Cu2-Co3 distances are 4.970(5) Å, 3.598(4) and Å 4.943(6) Å, respectively. The nearest Cu1-Cu1, Cu2-Cu2 and Co3-Co3 distances are at the same value of 9.286 Å (Fig.…”

“…1 In the past few years, therefore, there has been growing progress in the design of heterometallic assemblies particularly based on cyanidometallate complexes with the aim to give supramolecular architectures and provide molecular based magnets. 2 The most outstanding and long-known examples of cyanido complexes are represented by the mixed-valence polymeric structure of Prussian blue analogues which are ferromagnetic with T C = 5.6 K. These types of cyanido complexes are under investigation in coordination and organometallic chemistry at present.…”

“…9 Considering that the magnetic interactions are mediated by [Co(CN) 6 ] À3 anions, it is useful to investigate the magnetic properties of heterometallic cyanido-bridged complexes. The structural and magnetic properties of some complexes based on [Co(CN) 6 ] À3 building blocks have been rarely investigated and reported [2][3][4][5][6][7][10][11][12][13][14][15][16][17][18][19][20] for a long time and systematic studies on a series of hexacyanidocobaltate complexes have not yet been carried out.…”

Supramolecular assembly of new heteropolymetalic molecules based on tetraiminodiphenolate macrocycle and hexacyanometallate anions: Magnetostructural and spectroscopic properties

“…These building blocks combined with coordinatively unsaturated systems, like cationic Schiff-bases, produce 1D, 2D or 3D network structures. These assemblies also called Prussian blue analogues gained importance due to the innumerous possibilities to prepare novel extended lattices [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22].…”